=[raspberry pi4]拿到raspberry pi4之后,如何熟悉单板
目录
- 常用命令
- 文件系统
- thermal相关
- 摄像头相关
- nisy@raspberrypi:~ $ ls -al /sys/bus/media/devices/
- nisy@raspberrypi:/sys/bus/media/devices $ cat media0/model
- nisy@raspberrypi:/sys/bus/media/devices $ cat media1/model
- nisy@raspberrypi:/sys/bus/media/devices $ cat media2/model
- nisy@raspberrypi:/sys/bus/media/devices $ cat media3/model
- nisy@raspberrypi:/sys/bus/media/devices $ cat media4/model
- nisy@raspberrypi:~ $ ls -al /sys/bus/media/devices
- nisy@raspberrypi:~ $ ls -al /sys/class/video4linux
- nisy@raspberrypi:~ $ for i in /sys/class/video4linux/video* ; do echo $i ;echo dev:$(cat $i/dev); echo name:$(cat $i/name);echo index:$(cat $i/index);echo link_name:$(cat $i/link_name);echo; done
- nisy@raspberrypi:~ $ for i in /sys/class/video4linux/v4l-subdev* ; do echo $i ;echo dev:$(cat $i/dev); echo name:$(cat $i/name);echo index:$(cat $i/index);echo link_name:$(cat $i/link_name);echo; done
- nisy@raspberrypi:~ $ for i in /sys/bus/media/devices/media* ; do echo $i ;echo dev:$(cat $i/dev); echo model:$(cat $i/model);echo; done
- nisy@raspberrypi:~ $ ls -al /dev/video*
- v4l2-ctl 命令(Raspbian GNU/Linux 11 bullseye)
- nisy@raspberrypi:~ $ v4l2-ctl --list-devices
- nisy@raspberrypi:~ $ v4l2-ctl -d /dev/video0 -D
- nisy@raspberrypi:~ $ v4l2-ctl -d /dev/video10 -D
- nisy@raspberrypi:~ $ v4l2-ctl -d /dev/video11 -D
- nisy@raspberrypi:~ $ v4l2-ctl -d /dev/video12 -D
- nisy@raspberrypi:~ $ v4l2-ctl -d /dev/video13 -D
- nisy@raspberrypi:~ $ v4l2-ctl -d /dev/video14 -D
- nisy@raspberrypi:~ $ v4l2-ctl -d /dev/video15 -D
- nisy@raspberrypi:~ $ v4l2-ctl -d /dev/video16 -D
- nisy@raspberrypi:~ $ v4l2-ctl -d /dev/video18 -D
- nisy@raspberrypi:~ $ v4l2-ctl -d /dev/video19 -D
- nisy@raspberrypi:~ $ v4l2-ctl -d /dev/video20 -D
- nisy@raspberrypi:~ $ v4l2-ctl -d /dev/video21 -D
- nisy@raspberrypi:~ $ v4l2-ctl -d /dev/video22 -D
- nisy@raspberrypi:~ $ v4l2-ctl -d /dev/video23 -D
- nisy@raspberrypi:~ $ v4l2-ctl -d /dev/video31 -D
常用命令
树莓派独有的命令树莓派独有的命令
raspberry pi 有一些自己的特殊命令，如下：
root@raspberrypi:/usr/bin # ls -al raspi*
-rwxr-xr-x 1 root root 84356 2\u6708 10 2021 raspi-config
-rwxr-xr-x 1 root root 20564 10\u6708 1 2019 raspi-gpio
-rwxr-xr-x 1 root root 2383 7\u6708 18 2019 raspinfo
lrwxrwxrwx 1 root root 22 4\u6708 30 22:09 raspistill -> /opt/vc/bin/raspistill
lrwxrwxrwx 1 root root 20 4\u6708 30 22:09 raspivid -> /opt/vc/bin/raspivid
lrwxrwxrwx 1 root root 23 4\u6708 30 22:09 raspividyuv -> /opt/vc/bin/raspividyuv
lrwxrwxrwx 1 root root 20 4\u6708 30 22:09 raspiyuv -> /opt/vc/bin/raspiyuv
root@raspberrypi:/usr/bin #
拍照片 $ raspistill -o imagel. jpg
拍视频 $ raspivid -o video h264 -t 10000
树莓派信息 nisy@raspberrypi:/dev/bus/usb/001 $ raspinfo
System Information
------------------
Raspberry Pi 4 Model B Rev 1.1
PRETTY_NAME="Raspbian GNU/Linux 11 (bullseye)"
NAME="Raspbian GNU/Linux"
VERSION_ID="11"
VERSION="11 (bullseye)"
Raspberry Pi reference 2023-05-03
Generated using pi-gen, https://github.com/RPi-Distro/pi-gen, 47eee1f0ddcf8811559d51eea1c1bb48335e3e88, stage5
Linux raspberrypi 6.1.21-v8+ #1642 SMP PREEMPT Mon Apr 3 17:24:16 BST 2023 aarch64 GNU/Linux
Revision : c03111
Serial : 10000000bafb5028
Model : Raspberry Pi 4 Model B Rev 1.1
Throttled flag : throttled=0x50000
Camera : supported=0 detected=0, libcamera interfaces=0
Videocore information
---------------------
Mar 17 2023 10:50:39
Copyright (c) 2012 Broadcom
version 82f3750a65fadae9a38077e3c2e217ad158c8d54 (clean) (release) (start)
alloc failures: 0
compactions: 0
legacy block fails: 0
Filesystem information
----------------------
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/root 30706704 9022332 20099224 31% /
devtmpfs 1678472 0 1678472 0% /dev
tmpfs 1942696 26596 1916100 2% /dev/shm
tmpfs 777080 1328 775752 1% /run
tmpfs 5120 4 5116 1% /run/lock
/dev/mmcblk0p9 2093044 52080 2040964 3% /boot
tmpfs 388536 24 388512 1% /run/user/1000
/dev/mmcblk0p8 1014440 168 945460 1% /media/nisy/OVERLAY
/dev/mmcblk0p7 33995520 768640 33226880 3% /media/nisy/SHARE
/dev/mmcblk0p6 3139576 1405920 1733656 45% /media/nisy/RECALBOX
/dev/mmcblk0p12 30190624 24 28631664 1% /media/nisy/SHARE1
/dev/mmcblk0p11 3296968 1910796 1386172 58% /media/nisy/BATOCERA
Filename Type Size Used Priority
/var/swap file 102396 0 -2
Package version information
---------------------------
raspberrypi-ui-mods:
Installed: 1.20230127
raspberrypi-sys-mods:
Installed: 20230329
openbox:
Installed: 3.6.1-9+rpt1+deb11u1
lxpanel:
Installed: 0.10.1-2+rpt19
pcmanfm:
Installed: 1.3.2-1+rpt9
rpd-plym-splash:
Installed: 0.32
Networking Information
----------------------
eth0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
ether m.m.m.m txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet x.x.x.x netmask x.x.x.x
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Local Loopback)
RX packets 52 bytes 4194 (4.0 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 52 bytes 4194 (4.0 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
wlan0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet x.x.x.x netmask x.x.x.x broadcast x.x.x.x
inet6 y::y.y.y.y prefixlen 64 scopeid 0x20<link>
ether m.m.m.m txqueuelen 1000 (Ethernet)
RX packets 10453 bytes 6125586 (5.8 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 6379 bytes 805957 (787.0 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
USB Information
---------------
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 5000M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/1p, 480M
|__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M
|__ Port 1: Dev 5, If 0, Class=Human Interface Device, Driver=usbhid, 12M
|__ Port 1: Dev 5, If 1, Class=Human Interface Device, Driver=usbhid, 12M
|__ Port 1: Dev 5, If 2, Class=Human Interface Device, Driver=usbhid, 12M
|__ Port 4: Dev 4, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M
Display Information
-------------------
Running (F)KMS and X
Screen 0: minimum 320 x 200, current 1920 x 1080, maximum 7680 x 7680
HDMI-1 disconnected (normal left inverted right x axis y axis)
Identifier: 0x45
Timestamp: 18070
Subpixel: unknown
Clones:
CRTCs: 4
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
Output format: Automatic
supported: Automatic, RGB, YCbCr 4:2:2, YCbCr 4:4:4
Broadcast RGB: Automatic
supported: Automatic, Full, Limited 16:235
max bpc: 8
range: (8, 12)
bottom margin: 0
range: (0, 100)
top margin: 0
range: (0, 100)
right margin: 0
range: (0, 100)
left margin: 0
range: (0, 100)
Colorspace: Default
supported: Default, SMPTE_170M_YCC, BT709_YCC, XVYCC_601, XVYCC_709, SYCC_601, opYCC_601, opRGB, BT2020_CYCC, BT2020_RGB, BT2020_YCC, DCI-P3_RGB_D65, DCI-P3_RGB_Theater
link-status: Good
supported: Good, Bad
CONNECTOR_ID: 32
supported: 32
non-desktop: 0
range: (0, 1)
HDMI-2 connected primary 1920x1080+0+0 (0x48) normal (normal left inverted right x axis y axis) 521mm x 293mm
Identifier: 0x46
Timestamp: 18070
Subpixel: unknown
Gamma: 1.0:1.0:1.0
Brightness: 1.0
Clones:
CRTC: 0
CRTCs: 0
Transform: 1.000000 0.000000 0.000000
0.000000 1.000000 0.000000
0.000000 0.000000 1.000000
filter:
_MUTTER_PRESENTATION_OUTPUT: 0
EDID:
00ffffffffffff004c2d100c53465a5a
2f19010380341d782a7dd1a45650a128
0f5054bfef80714f81c0810081809500
a9c0b3000101023a801871382d40582c
450009252100001e011d007251d01e20
6e28550009252100001e000000fd0032
4b1e5111000a202020202020000000fc
00533234453336300a20202020200184
020311b14690041f13120365030c0010
00011d00bc52d01e20b8285540092521
00001e8c0ad090204031200c40550009
25210000188c0ad08a20e02d10103e96
00092521000018000000000000000000
00000000000000000000000000000000
00000000000000000000000000000000
00000000000000000000000000000051
Output format: Automatic
supported: Automatic, RGB, YCbCr 4:2:2, YCbCr 4:4:4
Broadcast RGB: Automatic
supported: Automatic, Full, Limited 16:235
max bpc: 8
range: (8, 12)
bottom margin: 0
range: (0, 100)
top margin: 0
range: (0, 100)
right margin: 0
range: (0, 100)
left margin: 0
range: (0, 100)
Colorspace: Default
supported: Default, SMPTE_170M_YCC, BT709_YCC, XVYCC_601, XVYCC_709, SYCC_601, opYCC_601, opRGB, BT2020_CYCC, BT2020_RGB, BT2020_YCC, DCI-P3_RGB_D65, DCI-P3_RGB_Theater
link-status: Good
supported: Good, Bad
CONNECTOR_ID: 42
supported: 42
non-desktop: 0
range: (0, 1)
1920x1080 (0x48) 148.500MHz +HSync +VSync *current +preferred
h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 67.50KHz
v: height 1080 start 1084 end 1089 total 1125 clock 60.00Hz
1920x1080 (0x49) 148.500MHz +HSync +VSync
h: width 1920 start 2448 end 2492 total 2640 skew 0 clock 56.25KHz
v: height 1080 start 1084 end 1089 total 1125 clock 50.00Hz
1920x1080 (0x4a) 148.352MHz +HSync +VSync
h: width 1920 start 2008 end 2052 total 2200 skew 0 clock 67.43KHz
v: height 1080 start 1084 end 1089 total 1125 clock 59.94Hz
1680x1050 (0x4b) 119.000MHz +HSync -VSync
h: width 1680 start 1728 end 1760 total 1840 skew 0 clock 64.67KHz
v: height 1050 start 1053 end 1059 total 1080 clock 59.88Hz
省略几万字
Connector 0 (32) HDMI-A-1 (disconnected)
Encoder 0 (31) TMDS
Connector 1 (42) HDMI-A-2 (connected)
Encoder 1 (41) TMDS
Crtc 4 (107) 1920x1080@60.00 148.500 1920/88/44/148/+ 1080/4/5/36/+ 60 (60.00)
Plane 4 (97) fb-id: 339 (crtcs: 4) 0,0 1920x1080 -> 0,0 1920x1080 (XR24 AR24 AB24 XB24 RG16 BG16 AR15 XR15 RG24 BG24 YU16 YV16 YU24 YV24 YU12 YV12 NV12 NV21 NV16 NV61 P030 XR30 AR30 AB30 XB30 RGB8 BGR8 XR12 AR12 XB12 AB12 BX12 BA12 RX12 RA12)
FB 339 1920x1080 XR24
Plane 26 (319) fb-id: 344 (crtcs: 4) 0,0 64x64 -> 1466,734 64x64 (XR24 AR24 AB24 XB24 RG16 BG16 AR15 XR15 RG24 BG24 YU16 YV16 YU24 YV24 YU12 YV12 NV12 NV21 NV16 NV61 P030 XR30 AR30 AB30 XB30 RGB8 BGR8 XR12 AR12 XB12 AB12 BX12 BA12 RX12 RA12)
FB 344 64x64 AR24
Connector 1 (42) HDMI-A-2 (connected)
0 1920x1080@60.00 148.500 1920/88/44/148/+ 1080/4/5/36/+ 60 (60.00) P|D
1 1920x1080@60.00 148.500 1920/88/44/148/+ 1080/4/5/36/+ 60 (60.00) D 16:9
省略几万字
34 640x480@59.94 25.175 640/16/96/48/- 480/10/2/33/- 60 (59.94) D
35 720x400@70.08 28.320 720/18/108/54/- 400/12/2/35/+ 70 (70.08) D
HDMI0: HDMI_HOTPLUG = 0x00000000
HDMI1: HDMI_HOTPLUG = 0x00000001
/sys/kernel/debug/dri/1/state:
plane[47]: plane-0
crtc=(null)
fb=0
crtc-pos=0x0+0+0
src-pos=0.000000x0.000000+0.000000+0.000000
rotation=1
normalized-zpos=0
color-encoding=ITU-R BT.709 YCbCr
color-range=YCbCr limited range
plane[64]: plane-1
省略几万字
self_refresh_aware=0
max_requested_bpc=0
config.txt
----------
arm_64bit=1
arm_boost=1
arm_freq=1500
audio_pwm_mode=514
camera_auto_detect=1
config_hdmi_boost=5
core_freq=500
core_freq_min=200
disable_commandline_tags=2
disable_l2cache=1
disable_overscan=1
disable_splash=1
display_auto_detect=1
display_hdmi_rotate=-1
display_lcd_rotate=-1
dvfs=3
enable_gic=1
force_eeprom_read=1
force_pwm_open=1
framebuffer_ignore_alpha=1
framebuffer_swap=1
gpu_freq=500
gpu_freq_min=250
init_uart_clock=0x2dc6c00
lcd_framerate=60
mask_gpu_interrupt0=3072
mask_gpu_interrupt1=25763
max_framebuffers=2
over_voltage_avs=-11250
pause_burst_frames=1
program_serial_random=1
second_boot=1
total_mem=4096
hdmi_force_cec_address:0=65535
hdmi_force_cec_address:1=65535
hdmi_pixel_freq_limit:0=0x11e1a300
hdmi_pixel_freq_limit:1=0x11e1a300
device_tree=-
overlay_prefix=overlays/
hdmi_cvt:0=
hdmi_cvt:1=
hdmi_edid_filename:0=
hdmi_edid_filename:1=
hdmi_timings:0=
hdmi_timings:1=
cmdline.txt
-----------
coherent_pool=1M 8250.nr_uarts=0 snd_bcm2835.enable_headphones=0 snd_bcm2835.enable_headphones=1 snd_bcm2835.enable_hdmi=1 snd_bcm2835.enable_hdmi=0 video=HDMI-A-1:1920x1080M@60 smsc95xx.macaddr=DC:A6:32:17:19:A2 vc_mem.mem_base=0x3ec00000 vc_mem.mem_size=0x40000000 console=ttyS0,115200 console=tty1 root=/dev/mmcblk0p10 rootfstype=ext4 fsck.repair=yes rootwait quiet splash plymouth.ignore-serial-consoles
raspi-gpio settings
-------------------
BANK0 (GPIO 0 to 27):
GPIO 0: level=1 fsel=0 func=INPUT pull=UP
GPIO 1: level=1 fsel=0 func=INPUT pull=UP
GPIO 2: level=1 fsel=0 func=INPUT pull=UP
GPIO 3: level=1 fsel=0 func=INPUT pull=UP
GPIO 4: level=1 fsel=0 func=INPUT pull=UP
GPIO 5: level=1 fsel=0 func=INPUT pull=UP
GPIO 6: level=1 fsel=0 func=INPUT pull=UP
GPIO 7: level=1 fsel=0 func=INPUT pull=UP
GPIO 8: level=1 fsel=0 func=INPUT pull=UP
GPIO 9: level=0 fsel=0 func=INPUT pull=DOWN
GPIO 10: level=0 fsel=0 func=INPUT pull=DOWN
GPIO 11: level=0 fsel=0 func=INPUT pull=DOWN
GPIO 12: level=0 fsel=0 func=INPUT pull=DOWN
GPIO 13: level=0 fsel=0 func=INPUT pull=DOWN
GPIO 14: level=1 fsel=0 func=INPUT pull=NONE
GPIO 15: level=1 fsel=0 func=INPUT pull=UP
GPIO 16: level=0 fsel=0 func=INPUT pull=DOWN
GPIO 17: level=0 fsel=0 func=INPUT pull=DOWN
GPIO 18: level=0 fsel=0 func=INPUT pull=DOWN
GPIO 19: level=0 fsel=0 func=INPUT pull=DOWN
GPIO 20: level=0 fsel=0 func=INPUT pull=DOWN
GPIO 21: level=0 fsel=0 func=INPUT pull=DOWN
GPIO 22: level=0 fsel=0 func=INPUT pull=DOWN
GPIO 23: level=0 fsel=0 func=INPUT pull=DOWN
GPIO 24: level=0 fsel=0 func=INPUT pull=DOWN
GPIO 25: level=0 fsel=0 func=INPUT pull=DOWN
GPIO 26: level=0 fsel=0 func=INPUT pull=DOWN
GPIO 27: level=0 fsel=0 func=INPUT pull=DOWN
BANK1 (GPIO 28 to 45):
GPIO 28: level=1 fsel=2 alt=5 func=RGMII_MDIO pull=UP
GPIO 29: level=0 fsel=2 alt=5 func=RGMII_MDC pull=DOWN
GPIO 30: level=0 fsel=7 alt=3 func=CTS0 pull=UP
GPIO 31: level=0 fsel=7 alt=3 func=RTS0 pull=NONE
GPIO 32: level=1 fsel=7 alt=3 func=TXD0 pull=NONE
GPIO 33: level=1 fsel=7 alt=3 func=RXD0 pull=UP
GPIO 34: level=0 fsel=7 alt=3 func=SD1_CLK pull=NONE
GPIO 35: level=1 fsel=7 alt=3 func=SD1_CMD pull=UP
GPIO 36: level=1 fsel=7 alt=3 func=SD1_DAT0 pull=UP
GPIO 37: level=1 fsel=7 alt=3 func=SD1_DAT1 pull=UP
GPIO 38: level=1 fsel=7 alt=3 func=SD1_DAT2 pull=UP
GPIO 39: level=1 fsel=7 alt=3 func=SD1_DAT3 pull=UP
GPIO 40: level=1 fsel=4 alt=0 func=PWM1_0 pull=NONE
GPIO 41: level=0 fsel=4 alt=0 func=PWM1_1 pull=NONE
GPIO 42: level=0 fsel=1 func=OUTPUT pull=UP
GPIO 43: level=1 fsel=0 func=INPUT pull=UP
GPIO 44: level=1 fsel=5 alt=1 func=SDA0 pull=UP
GPIO 45: level=1 fsel=5 alt=1 func=SCL0 pull=UP
BANK2 (GPIO 46 to 53):
GPIO 46: level=0 fsel=0 func=INPUT pull=UP
GPIO 47: level=0 fsel=0 func=INPUT pull=UP
GPIO 48: level=0 fsel=0 func=INPUT pull=DOWN
GPIO 49: level=0 fsel=0 func=INPUT pull=DOWN
GPIO 50: level=0 fsel=0 func=INPUT pull=DOWN
GPIO 51: level=0 fsel=0 func=INPUT pull=DOWN
GPIO 52: level=0 fsel=0 func=INPUT pull=DOWN
GPIO 53: level=0 fsel=0 func=INPUT pull=DOWN
vcdbg log messages
------------------
004280.757: arasan: arasan_emmc_open
004280.927: arasan: arasan_emmc_set_clock C0: 0x00800000 C1: 0x000e0047 emmc: 200000000 actual: 390625 div: 0x00000100 target: 400000 min: 400000 max: 400000 delay: 5
004385.702: arasan: arasan_emmc_set_clock C0: 0x00800000 C1: 0x000e0047 emmc: 200000000 actual: 390625 div: 0x00000100 target: 400000 min: 400000 max: 400000 delay: 5
004385.789: arasan: arasan_emmc_set_clock C0: 0x00800f00 C1: 0x000e0047 emmc: 200000000 actual: 390625 div: 0x00000100 target: 400000 min: 390000 max: 400000 delay: 5
004422.127: arasan: arasan_emmc_set_clock C0: 0x00800f06 C1: 0x000e0207 emmc: 200000000 actual: 50000000 div: 0x00000002 target: 50000000 min: 0 max: 50000000 delay: 1
004427.516: brfs: File read: /mfs/sd/config.txt
004428.495: brfs: File read: 2113 bytes
004450.193: HDMI0:EDID error reading EDID block 0 attempt 0
004451.209: HDMI0:EDID giving up on reading EDID block 0
004511.555: brfs: File read: /mfs/sd/config.txt
005271.985: gpioman: gpioman_get_pin_num: pin DISPLAY_DSI_PORT not defined
005274.506: *** Restart logging
005274.526: brfs: File read: 2113 bytes
005280.051: hdmi: HDMI0:EDID error reading EDID block 0 attempt 0
005281.069: hdmi: HDMI0:EDID giving up on reading EDID block 0
005286.111: hdmi: HDMI0:EDID error reading EDID block 0 attempt 0
005287.126: hdmi: HDMI0:EDID giving up on reading EDID block 0
005287.144: hdmi: HDMI:hdmi_get_state is deprecated, use hdmi_get_display_state instead
005345.114: HDMI0: hdmi_pixel_encoding: 300000000
005345.127: HDMI1: hdmi_pixel_encoding: 300000000
005345.618: kernel=
005352.552: dtb_file 'bcm2711-rpi-4-b.dtb'
005358.075: brfs: File read: /mfs/sd/bcm2711-rpi-4-b.dtb
005358.092: Loaded 'bcm2711-rpi-4-b.dtb' to 0x100 size 0xcd71
005371.275: brfs: File read: 52593 bytes
005384.016: brfs: File read: /mfs/sd/overlays/overlay_map.dtb
005456.615: Found camera 'ov5647' on port 0, unicam_port 1
005457.132: brfs: File read: 2347 bytes
005469.037: brfs: File read: /mfs/sd/overlays/ov5647.dtbo
005510.503: Loaded overlay 'ov5647'
005649.918: brfs: File read: 3368 bytes
005653.821: brfs: File read: /mfs/sd/config.txt
005654.691: dtparam: audio=on
005666.369: brfs: File read: 2113 bytes
005690.284: brfs: File read: /mfs/sd/overlays/vc4-kms-v3d-pi4.dtbo
005844.570: Loaded overlay 'vc4-kms-v3d'
006236.058: brfs: File read: 3913 bytes
006239.340: brfs: File read: /mfs/sd/cmdline.txt
006239.422: Read command line from file 'cmdline.txt':
006239.451: 'console=serial0,115200 console=tty1 root=/dev/mmcblk0p10 rootfstype=ext4 fsck.repair=yes rootwait quiet splash plymouth.ignore-serial-consoles'
006580.819: brfs: File read: 143 bytes
008341.102: brfs: File read: /mfs/sd/kernel8.img
008341.143: Loaded 'kernel8.img' to 0x80000 size 0x7d6bd0
011179.580: Kernel relocated to 0x200000
011179.606: Device tree loaded to 0x2eff2800 (size 0xd79a)
011186.842: gpioman: gpioman_get_pin_num: pin SDCARD_CONTROL_POWER not defined
013330.542: vchiq_core: vchiq_init_state: slot_zero = 0xcf000000, is_master = 1
013341.217: TV service:host side not connected, dropping notification 0x00000002, 0x00000001, 0x00000010
dmesg log
---------
[ 0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd083]
[ 0.000000] Linux version 6.1.21-v8+ (dom@buildbot) (aarch64-linux-gnu-gcc-8 (Ubuntu/Linaro 8.4.0-3ubuntu1) 8.4.0, GNU ld (GNU Binutils for Ubuntu) 2.34) #1642 SMP PREEMPT Mon Apr 3 17:24:16 BST 2023
[ 0.000000] random: crng init done
[ 0.000000] Machine model: Raspberry Pi 4 Model B Rev 1.1
[ 0.000000] efi: UEFI not found.
[ 0.000000] Reserved memory: created CMA memory pool at 0x000000000ec00000, size 512 MiB
[ 0.000000] OF: reserved mem: initialized node linux,cma, compatible id shared-dma-pool
[ 0.000000] Zone ranges:
[ 0.000000] DMA [mem 0x0000000000000000-0x000000003fffffff]
[ 0.000000] DMA32 [mem 0x0000000040000000-0x00000000fbffffff]
[ 0.000000] Normal empty
[ 0.000000] Movable zone start for each node
[ 0.000000] Early memory node ranges
[ 0.000000] node 0: [mem 0x0000000000000000-0x000000003b3fffff]
[ 0.000000] node 0: [mem 0x0000000040000000-0x00000000fbffffff]
[ 0.000000] Initmem setup node 0 [mem 0x0000000000000000-0x00000000fbffffff]
[ 0.000000] On node 0, zone DMA32: 19456 pages in unavailable ranges
[ 0.000000] On node 0, zone DMA32: 16384 pages in unavailable ranges
[ 0.000000] percpu: Embedded 29 pages/cpu s78504 r8192 d32088 u118784
[ 0.000000] pcpu-alloc: s78504 r8192 d32088 u118784 alloc=29*4096
[ 0.000000] pcpu-alloc: [0] 0 [0] 1 [0] 2 [0] 3
[ 0.000000] Detected PIPT I-cache on CPU0
[ 0.000000] CPU features: detected: Spectre-v2
[ 0.000000] CPU features: detected: Spectre-v3a
[ 0.000000] CPU features: detected: Spectre-v4
[ 0.000000] CPU features: detected: Spectre-BHB
[ 0.000000] CPU features: kernel page table isolation forced ON by KASLR
[ 0.000000] CPU features: detected: Kernel page table isolation (KPTI)
[ 0.000000] CPU features: detected: ARM erratum 1742098
[ 0.000000] CPU features: detected: ARM errata 1165522, 1319367, or 1530923
[ 0.000000] alternatives: applying boot alternatives
[ 0.000000] Built 1 zonelists, mobility grouping on. Total pages: 996912
[ 0.000000] Kernel command line: coherent_pool=1M 8250.nr_uarts=0 snd_bcm2835.enable_headphones=0 snd_bcm2835.enable_headphones=1 snd_bcm2835.enable_hdmi=1 snd_bcm2835.enable_hdmi=0 video=HDMI-A-1:1920x1080M@60 smsc95xx.macaddr=m.m.m.m vc_mem.mem_base=0x3ec00000 vc_mem.mem_size=0x40000000 console=ttyS0,115200 console=tty1 root=/dev/mmcblk0p10 rootfstype=ext4 fsck.repair=yes rootwait quiet splash plymouth.ignore-serial-consoles
[ 0.000000] Unknown kernel command line parameters "splash", will be passed to user space.
[ 0.000000] Dentry cache hash table entries: 524288 (order: 10, 4194304 bytes, linear)
[ 0.000000] Inode-cache hash table entries: 262144 (order: 9, 2097152 bytes, linear)
[ 0.000000] mem auto-init: stack:off, heap alloc:off, heap free:off
[ 0.000000] software IO TLB: area num 4.
[ 0.000000] software IO TLB: mapped [mem 0x0000000037400000-0x000000003b400000] (64MB)
[ 0.000000] Memory: 3356944K/4050944K available (11776K kernel code, 2106K rwdata, 3688K rodata, 4160K init, 1077K bss, 169712K reserved, 524288K cma-reserved)
[ 0.000000] SLUB: HWalign=64, Order=0-3, MinObjects=0, CPUs=4, Nodes=1
[ 0.000000] ftrace: allocating 39744 entries in 156 pages
[ 0.000000] ftrace: allocated 156 pages with 4 groups
[ 0.000000] trace event string verifier disabled
[ 0.000000] rcu: Preemptible hierarchical RCU implementation.
[ 0.000000] rcu: RCU event tracing is enabled.
[ 0.000000] rcu: RCU restricting CPUs from NR_CPUS=256 to nr_cpu_ids=4.
[ 0.000000] Trampoline variant of Tasks RCU enabled.
省略几万字
EEPROM
------
*** UPDATE AVAILABLE ***
BOOTLOADER: update available
CURRENT: Thu 29 Apr 2021 04:11:25 PM UTC (1619712685)
LATEST: Wed 11 Jan 2023 05:40:52 PM UTC (1673458852)
RELEASE: default (/lib/firmware/raspberrypi/bootloader/default)
Use raspi-config to change the release.
VL805_FW: Dedicated VL805 EEPROM
VL805: up to date
CURRENT: 000138c0
LATEST: 000138c0
nisy@raspberrypi:/dev/bus/usb/001 $ raspividyuv
ERROR: the system should be configured for the legacy camera stack
nisy@raspberrypi:/dev/bus/usb/001 $ raspiyuv
ERROR: the system should be configured for the legacy camera stack
基本配置命令 sudo raspi-config
GPIO
nisy@raspberrypi:~ $ pinout
,--------------------------------.
| oooooooooooooooooooo J8 +======
| 1ooooooooooooooooooo PoE | Net
| Wi 1o +======
| Fi Pi Model 4B V1.1 oo |
| ,----. +---+ +====
| |D| |SoC | |RAM| |USB3
| |S| | | | | +====
| |I| `----' +---+ |
| |C| +====
| |S| |USB2
| pwr |hd| |hd| |I||A| +====
`-| |---|m0|---|m1|----|V|-------'
Revision : c03111
SoC : BCM2711
RAM : 4GB
Storage : MicroSD
USB ports : 4 (of which 2 USB3)
Ethernet ports : 1 (1000Mbps max. speed)
Wi-fi : True
Bluetooth : True
Camera ports (CSI) : 1
Display ports (DSI): 1
J8:
3V3 (1) (2) 5V
GPIO2 (3) (4) 5V
GPIO3 (5) (6) GND
GPIO4 (7) (8) GPIO14
GND (9) (10) GPIO15
GPIO17 (11) (12) GPIO18
GPIO27 (13) (14) GND
GPIO22 (15) (16) GPIO23
3V3 (17) (18) GPIO24
GPIO10 (19) (20) GND
GPIO9 (21) (22) GPIO25
GPIO11 (23) (24) GPIO8
GND (25) (26) GPIO7
GPIO0 (27) (28) GPIO1
GPIO5 (29) (30) GND
GPIO6 (31) (32) GPIO12
GPIO13 (33) (34) GND
GPIO19 (35) (36) GPIO16
GPIO26 (37) (38) GPIO20
GND (39) (40) GPIO21
POE:
TR01 (1) (2) TR00
TR03 (3) (4) TR02
For further information, please refer to https://pinout.xyz/
树莓派跑分
./7zzs b
7zip GUI（32bit）
pi@raspberrypi:~/Downloads $ ./7zzs b
7-Zip (z) 21.07 (armt) : Copyright (c) 1999-2021 Igor Pavlov : 2021-12-26
32-bit arm_v:7 thumb:2 locale=zh_CN.UTF-8 Threads:4
Compiler: 9.2.1 20191025 GCC 9.2.1
Linux : 5.10.52-v7l+ : #1441 SMP Tue Aug 3 18:11:56 BST 2021 : armv7l
PageSize:4KB hwcap:3FB0D6:NEON hwcap2:10:CRC32
LE
1T CPU Freq (MHz): 770 1496 1499 1482 1492 1498 1498
2T CPU Freq (MHz): 199% 1487 200% 1498
RAM size: 2048 MB, # CPU hardware threads: 4
RAM usage: 889 MB, # Benchmark threads: 4
Compressing | Decompressing
Dict Speed Usage R/U Rating | Speed Usage R/U Rating
KiB/s % MIPS MIPS | KiB/s % MIPS MIPS
22: 4002 333 1170 3894 | 79365 363 1865 6771
23: 3711 339 1116 3781 | 77910 364 1853 6741
24: 3640 342 1144 3914 | 81043 388 1833 7112
25: 3506 351 1142 4004 | 72867 358 1810 6485
---------------------------------- | ------------------------------
Avr: 3715 341 1143 3898 | 77796 368 1840 6777
Tot: 355 1492 5338
32bit 7zzs测试:
RAM size: 2048 MB, # CPU hardware threads: 4
RAM usage: 889 MB, # Benchmark threads: 4
Compressing | Decompressing
Dict Speed Usage R/U Rating | Speed Usage R/U Rating
KiB/s % MIPS MIPS | KiB/s % MIPS MIPS
22: 4159 333 1216 4046 | 80710 362 1901 6886
23: 3981 345 1177 4057 | 82400 378 1887 7130
24: 3753 337 1198 4035 | 76818 360 1875 6741
25: 3684 357 1178 4207 | 74340 358 1849 6616
---------------------------------- | ------------------------------
Avr: 3894 343 1192 4086 | 78567 364 1878 6843
Tot: 354 1535 5465
64bit 7zzs测试：
7-Zip (z) 22.01 (arm64) : Copyright (c) 1999-2022 Igor Pavlov : 2022-07-15
64-bit arm_v:8 locale=en_US.UTF-8 Threads:4, ASM
Compiler: 9.2.1 20191025 GCC 9.2.1
Linux : 5.15.32-v8+ : #1538 SMP PREEMPT Thu Mar 31 19:40:39 BST 2022 : aarch64
PageSize:4KB hwcap:887:CRC32:ASIMD
LE
1T CPU Freq (MHz): 1489 1498 967 1497 1497 1497 1497
2T CPU Freq (MHz): 200% 1497 200% 1497
RAM size: 3794 MB, # CPU hardware threads: 4
RAM usage: 889 MB, # Benchmark threads: 4
Compressing | Decompressing
Dict Speed Usage R/U Rating | Speed Usage R/U Rating
KiB/s % MIPS MIPS | KiB/s % MIPS MIPS
22: 4166 318 1275 4053 | 115032 398 2464 9814
23: 3666 290 1288 3735 | 112664 398 2448 9749
24: 3947 353 1201 4244 | 102922 373 2423 9032
25: 3758 348 1232 4291 | 99193 369 2392 8828
---------------------------------- | ------------------------------
Avr: 3884 327 1249 4081 | 107453 385 2432 9356
Tot: 356 1840 6718
coremark跑分
看到eembc官网的pi4 能跑到 48626分 （https://www.eembc.org/viewer/?benchmark_seq=13417）
我用自己的跑一下，设置开机直接进CLI，然后参考上面别人跑分时的“Compiler Flags‘，输入命令：
make XCFLAGS="-O2 -DMULTITHREAD=4 -DUSE_PTHREAD -DPERFORMANCE_RUN=1 -lrt -pthread"
很快跑完，还是有差距，不确信是否与gcc等有关：
2K performance run parameters for coremark.
CoreMark Size : 666
Total ticks : 14204
Total time (secs): 14.204000
Iterations/Sec : 30977.189524
Iterations : 440000
Compiler version : GCC8.3.0
Compiler flags : -O2 -O2 -DMULTITHREAD=4 -DUSE_PTHREAD -DPERFORMANCE_RUN=1 -lrt -pthread -DPERFORMANCE_RUN=1 -lrt
Parallel PThreads : 4
Memory location : Please put data memory location here
(e.g. code in flash, data on heap etc)
seedcrc : 0xe9f5
[0]crclist : 0xe714
[1]crclist : 0xe714
[2]crclist : 0xe714
[3]crclist : 0xe714
[0]crcmatrix : 0x1fd7
[1]crcmatrix : 0x1fd7
[2]crcmatrix : 0x1fd7
[3]crcmatrix : 0x1fd7
[0]crcstate : 0x8e3a
[1]crcstate : 0x8e3a
[2]crcstate : 0x8e3a
[3]crcstate : 0x8e3a
[0]crcfinal : 0x33ff
[1]crcfinal : 0x33ff
[2]crcfinal : 0x33ff
[3]crcfinal : 0x33ff
Correct operation validated. See README.md for run and reporting rules.
CoreMark 1.0 : 30977.189524 / GCC8.3.0 -O2 -O2 -DMULTITHREAD=4 -DUSE_PTHREAD -DPERFORMANCE_RUN=1 -lrt -pthread -DPERFORMANCE_RUN=1 -lrt / Heap / 4:PThreads
//系统温度：
cd /sys/class/thermal
ls -al
cat thermal_zone0/type
cat thermal_zone0/temp
nisy@raspberrypi:/dev/bus/usb/001 $ lspci
00:00.0 PCI bridge: Broadcom Inc. and subsidiaries BCM2711 PCIe Bridge (rev 10)
01:00.0 USB controller: VIA Technologies, Inc. VL805 USB 3.0 Host Controller (rev 01)
nisy@raspberrypi:/dev/bus/usb/001 $ lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 004: ID 1c4f:0065 SiGma Micro Optical Wheel Mouse [Rapoo N1130]
Bus 001 Device 005: ID 1a81:204c Holtek Semiconductor, Inc. ikbc S200
Bus 001 Device 002: ID 2109:3431 VIA Labs, Inc. Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
nisy@raspberrypi:~ $ lsipc
RESOURCE DESCRIPTION LIMIT USED USE%
MSGMNI Number of message queues 32000 0 0.00%
MSGMAX Max size of message (bytes) 8192 - -
MSGMNB Default max size of queue (bytes) 16384 - -
SHMMNI Shared memory segments 4096 5 0.12%
SHMALL Shared memory pages 18446744073692774399 1024 0.00%
SHMMAX Max size of shared memory segment (bytes) 18446744073692774399 - -
SHMMIN Min size of shared memory segment (bytes) 1 - -
SEMMNI Number of semaphore identifiers 32000 0 0.00%
SEMMNS Total number of semaphores 1024000000 0 0.00%
SEMMSL Max semaphores per semaphore set. 32000 - -
SEMOPM Max number of operations per semop(2) 500 - -
SEMVMX Semaphore max value 32767 - -
nisy@raspberrypi:~ $ df -h
Filesystem Size Used Avail Use% Mounted on
/dev/root 30G 8.9G 19G 32% /
devtmpfs 1.7G 0 1.7G 0% /dev
tmpfs 1.9G 0 1.9G 0% /dev/shm
tmpfs 759M 1.3M 758M 1% /run
tmpfs 5.0M 4.0K 5.0M 1% /run/lock
/dev/mmcblk0p9 2.0G 51M 2.0G 3% /boot
tmpfs 380M 28K 380M 1% /run/user/1000
/dev/mmcblk0p8 991M 168K 924M 1% /media/nisy/OVERLAY
/dev/mmcblk0p7 33G 751M 32G 3% /media/nisy/SHARE
/dev/mmcblk0p6 3.0G 1.4G 1.7G 45% /media/nisy/RECALBOX
/dev/mmcblk0p12 29G 24K 28G 1% /media/nisy/SHARE1
/dev/mmcblk0p11 3.2G 1.9G 1.4G 58% /media/nisy/BATOCERA
nisy@raspberrypi:/dev/block $ ls -al
total 0
drwxr-xr-x 2 root root 900 Mar 31 14:34 .
drwxr-xr-x 16 root root 4480 Mar 31 14:34 ..
lrwxrwxrwx 1 root root 7 Mar 31 14:34 1:0 -> ../ram0
lrwxrwxrwx 1 root root 7 Mar 31 14:34 1:1 -> ../ram1
lrwxrwxrwx 1 root root 8 Mar 31 14:34 1:10 -> ../ram10
lrwxrwxrwx 1 root root 8 Mar 31 14:34 1:11 -> ../ram11
lrwxrwxrwx 1 root root 8 Mar 31 14:34 1:12 -> ../ram12
lrwxrwxrwx 1 root root 8 Mar 31 14:34 1:13 -> ../ram13
lrwxrwxrwx 1 root root 8 Mar 31 14:34 1:14 -> ../ram14
lrwxrwxrwx 1 root root 8 Mar 31 14:34 1:15 -> ../ram15
lrwxrwxrwx 1 root root 7 Mar 31 14:34 1:2 -> ../ram2
lrwxrwxrwx 1 root root 7 Mar 31 14:34 1:3 -> ../ram3
lrwxrwxrwx 1 root root 7 Mar 31 14:34 1:4 -> ../ram4
lrwxrwxrwx 1 root root 7 Mar 31 14:34 1:5 -> ../ram5
lrwxrwxrwx 1 root root 7 Mar 31 14:34 1:6 -> ../ram6
lrwxrwxrwx 1 root root 7 Mar 31 14:34 1:7 -> ../ram7
lrwxrwxrwx 1 root root 10 Mar 31 14:34 179:0 -> ../mmcblk0
lrwxrwxrwx 1 root root 12 Mar 31 14:34 179:1 -> ../mmcblk0p1
lrwxrwxrwx 1 root root 13 Mar 31 14:34 179:10 -> ../mmcblk0p10
lrwxrwxrwx 1 root root 13 Mar 31 14:34 179:11 -> ../mmcblk0p11
lrwxrwxrwx 1 root root 13 Mar 31 14:34 179:12 -> ../mmcblk0p12
lrwxrwxrwx 1 root root 13 Mar 31 14:34 179:13 -> ../mmcblk0p13
lrwxrwxrwx 1 root root 13 Mar 31 14:34 179:14 -> ../mmcblk0p14
lrwxrwxrwx 1 root root 13 Mar 31 14:34 179:15 -> ../mmcblk0p15
lrwxrwxrwx 1 root root 13 Mar 31 14:34 179:16 -> ../mmcblk0p16
lrwxrwxrwx 1 root root 13 Mar 31 14:34 179:17 -> ../mmcblk0p17
lrwxrwxrwx 1 root root 13 Mar 31 14:34 179:18 -> ../mmcblk0p18
lrwxrwxrwx 1 root root 13 Mar 31 14:34 179:19 -> ../mmcblk0p19
lrwxrwxrwx 1 root root 12 Mar 31 14:34 179:2 -> ../mmcblk0p2
lrwxrwxrwx 1 root root 13 Mar 31 14:34 179:20 -> ../mmcblk0p20
lrwxrwxrwx 1 root root 12 Mar 31 14:34 179:5 -> ../mmcblk0p5
lrwxrwxrwx 1 root root 12 Mar 31 14:34 179:6 -> ../mmcblk0p6
lrwxrwxrwx 1 root root 12 Mar 31 14:34 179:7 -> ../mmcblk0p7
lrwxrwxrwx 1 root root 12 Mar 31 14:34 179:8 -> ../mmcblk0p8
lrwxrwxrwx 1 root root 12 Mar 31 14:34 179:9 -> ../mmcblk0p9
lrwxrwxrwx 1 root root 7 Mar 31 14:34 1:8 -> ../ram8
lrwxrwxrwx 1 root root 7 Mar 31 14:34 1:9 -> ../ram9
lrwxrwxrwx 1 root root 8 Mar 31 14:34 7:0 -> ../loop0
lrwxrwxrwx 1 root root 8 Mar 31 14:34 7:1 -> ../loop1
lrwxrwxrwx 1 root root 8 Mar 31 14:34 7:2 -> ../loop2
lrwxrwxrwx 1 root root 8 Mar 31 14:34 7:3 -> ../loop3
lrwxrwxrwx 1 root root 8 Mar 31 14:34 7:4 -> ../loop4
lrwxrwxrwx 1 root root 8 Mar 31 14:34 7:5 -> ../loop5
lrwxrwxrwx 1 root root 8 Mar 31 14:34 7:6 -> ../loop6
lrwxrwxrwx 1 root root 8 Mar 31 14:34 7:7 -> ../loop7
nisy@raspberrypi:/dev/block $
root@raspberrypi:/proc # fdisk -l
Disk /dev/ram0: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram1: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram2: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram3: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram4: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram5: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram6: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram7: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram8: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram9: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram10: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram11: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram12: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram13: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram14: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/ram15: 4 MiB, 4194304 bytes, 8192 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/mmcblk0: 238.75 GiB, 256355860480 bytes, 500695040 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: dos
Disk identifier: 0x2ba8c4b9
Device Boot Start End Sectors Size Id Type
/dev/mmcblk0p1 2048 6824218 6822171 3.3G e W95 FAT16 (LBA)
/dev/mmcblk0p2 6824219 500695039 493870821 235.5G 5 Extended
/dev/mmcblk0p5 6832128 6897661 65534 32M 83 Linux
/dev/mmcblk0p6 6897664 13189117 6291454 3G c W95 FAT32 (LBA)
/dev/mmcblk0p7 13189120 81182717 67993598 32.4G 7 HPFS/NTFS/exFAT
/dev/mmcblk0p8 81182720 83279869 2097150 1024M 83 Linux
/dev/mmcblk0p9 83279872 87474173 4194302 2G c W95 FAT32 (LBA)
/dev/mmcblk0p10 87474176 150224893 62750718 29.9G 83 Linux
/dev/mmcblk0p11 150224896 156831743 6606848 3.2G c W95 FAT32 (LBA)
/dev/mmcblk0p12 156835840 218537981 61702142 29.4G 83 Linux
/dev/mmcblk0p13 218537984 219062269 524286 256M c W95 FAT32 (LBA)
/dev/mmcblk0p14 219062272 286089213 67026942 32G 83 Linux
/dev/mmcblk0p15 286089216 287133695 1044480 510M c W95 FAT32 (LBA)
/dev/mmcblk0p16 287137792 371187709 84049918 40.1G 83 Linux
/dev/mmcblk0p17 371187712 371470335 282624 138M c W95 FAT32 (LBA)
/dev/mmcblk0p18 371474432 435609597 64135166 30.6G 83 Linux
/dev/mmcblk0p19 435609600 435871741 262142 128M c W95 FAT32 (LBA)
/dev/mmcblk0p20 435871744 500695039 64823296 30.9G 83 Linux
nisy@raspberrypi:/dev/block $
root@raspberrypi:/usr/bin # lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
mmcblk0 179:0 0 14.5G 0 disk
├─mmcblk0p1 179:1 0 256M 0 part /boot
└─mmcblk0p2 179:2 0 14.2G 0 part /
或者另一张SD卡：
nisy@raspberrypi:/dev/block $ lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
mmcblk0 179:0 0 238.8G 0 disk
├─mmcblk0p1 179:1 0 3.3G 0 part
├─mmcblk0p2 179:2 0 1K 0 part
├─mmcblk0p5 179:5 0 32M 0 part
├─mmcblk0p6 179:6 0 3G 0 part /media/nisy/RECALBOX
├─mmcblk0p7 179:7 0 32.4G 0 part /media/nisy/SHARE
├─mmcblk0p8 179:8 0 1024M 0 part /media/nisy/OVERLAY
├─mmcblk0p9 179:9 0 2G 0 part /boot
├─mmcblk0p10 179:10 0 29.9G 0 part /
├─mmcblk0p11 179:11 0 3.2G 0 part /media/nisy/BATOCERA
├─mmcblk0p12 179:12 0 29.4G 0 part /media/nisy/SHARE1
├─mmcblk0p13 179:13 0 256M 0 part
├─mmcblk0p14 179:14 0 32G 0 part
├─mmcblk0p15 179:15 0 510M 0 part
├─mmcblk0p16 179:16 0 40.1G 0 part
├─mmcblk0p17 179:17 0 138M 0 part
├─mmcblk0p18 179:18 0 30.6G 0 part
├─mmcblk0p19 179:19 0 128M 0 part
└─mmcblk0p20 179:20 0 30.9G 0 part
pi@raspberrypi:~ $ lsmod
Module Size Used by
exfat 77824 1
rfcomm 53248 4
cmac 16384 3
algif_hash 16384 1
aes_arm64 16384 3
aes_generic 36864 1 aes_arm64
algif_skcipher 16384 1
af_alg 28672 6 algif_hash,algif_skcipher
bnep 24576 2
hci_uart 53248 1
btbcm 24576 1 hci_uart
bluetooth 565248 31 hci_uart,btbcm,bnep,rfcomm
ecdh_generic 16384 2 bluetooth
ecc 36864 1 ecdh_generic
libaes 16384 3 aes_arm64,bluetooth,aes_generic
8021q 32768 0
garp 16384 1 8021q
stp 16384 1 garp
llc 16384 2 stp,garp
ov5647 20480 1
vc4 331776 16
joydev 28672 0
snd_soc_hdmi_codec 20480 2
drm_display_helper 16384 1 vc4
brcmfmac 331776 0
cec 53248 1 vc4
drm_dma_helper 20480 1 vc4
drm_kms_helper 204800 4 drm_dma_helper,vc4
brcmutil 24576 1 brcmfmac
bcm2835_unicam 53248 0
cfg80211 925696 1 brcmfmac
v4l2_dv_timings 40960 1 bcm2835_unicam
v4l2_fwnode 24576 2 ov5647,bcm2835_unicam
v4l2_async 24576 3 v4l2_fwnode,ov5647,bcm2835_unicam
snd_soc_core 274432 2 vc4,snd_soc_hdmi_codec
bcm2835_isp 28672 0
rpivid_hevc 53248 0
raspberrypi_hwmon 16384 0
v3d 90112 16
bcm2835_v4l2 45056 0
rfkill 32768 6 bluetooth,cfg80211
gpu_sched 49152 1 v3d
videobuf2_vmalloc 16384 1 bcm2835_v4l2
i2c_mux_pinctrl 16384 0
drm_shmem_helper 24576 1 v3d
bcm2835_codec 49152 0
bcm2835_mmal_vchiq 36864 3 bcm2835_codec,bcm2835_v4l2,bcm2835_isp
i2c_mux 16384 1 i2c_mux_pinctrl
v4l2_mem2mem 45056 2 bcm2835_codec,rpivid_hevc
i2c_brcmstb 16384 0
videobuf2_dma_contig 20480 4 bcm2835_codec,bcm2835_unicam,rpivid_hevc,bcm2835_isp
videobuf2_memops 16384 2 videobuf2_vmalloc,videobuf2_dma_contig
videobuf2_v4l2 32768 6 bcm2835_codec,bcm2835_unicam,bcm2835_v4l2,rpivid_hevc,v4l2_mem2mem,bcm2835_isp
videobuf2_common 69632 10 bcm2835_codec,videobuf2_vmalloc,videobuf2_dma_contig,videobuf2_v4l2,bcm2835_unicam,bcm2835_v4l2,rpivid_hevc,v4l2_mem2mem,videobuf2_memops,bcm2835_isp
i2c_bcm2835 16384 0
videodev 274432 10 v4l2_async,bcm2835_codec,ov5647,videobuf2_v4l2,bcm2835_unicam,bcm2835_v4l2,videobuf2_common,rpivid_hevc,v4l2_mem2mem,bcm2835_isp
snd_bcm2835 28672 1
vc_sm_cma 36864 2 bcm2835_mmal_vchiq,bcm2835_isp
snd_compress 20480 1 snd_soc_core
mc 61440 10 v4l2_async,videodev,bcm2835_codec,ov5647,videobuf2_v4l2,bcm2835_unicam,videobuf2_common,rpivid_hevc,v4l2_mem2mem,bcm2835_isp
snd_pcm_dmaengine 20480 1 snd_soc_core
snd_pcm 139264 5 snd_bcm2835,snd_soc_hdmi_codec,snd_compress,snd_soc_core,snd_pcm_dmaengine
snd_timer 36864 1 snd_pcm
snd 106496 12 snd_bcm2835,snd_soc_hdmi_codec,snd_timer,snd_compress,snd_soc_core,snd_pcm
syscopyarea 16384 1 drm_kms_helper
sysfillrect 16384 1 drm_kms_helper
sysimgblt 16384 1 drm_kms_helper
fb_sys_fops 16384 1 drm_kms_helper
nvmem_rmem 16384 0
uio_pdrv_genirq 16384 0
uio 24576 1 uio_pdrv_genirq
drm 581632 21 gpu_sched,drm_kms_helper,drm_dma_helper,v3d,vc4,drm_shmem_helper,drm_display_helper
i2c_dev 20480 0
fuse 135168 3
drm_panel_orientation_quirks 28672 1 drm
backlight 24576 1 drm
ip_tables 32768 0
x_tables 53248 1 ip_tables
ipv6 557056 42
nisy@raspberrypi:/dev/block $
文件系统
init进程查询 - nisy@raspberrypi:/dev/bus/usb/001 $ ls -al /sbin/init
lrwxrwxrwx 1 root root 20 Sep 13 2022 /sbin/init -> /lib/systemd/systemd
root@raspberrypi:/sys/class # cat /boot/config.txt
# For more options and information see
# http://rpf.io/configtxt
# Some settings may impact device functionality. See link above for details
# uncomment if you get no picture on HDMI for a default "safe" mode
#hdmi_safe=1
# uncomment this if your display has a black border of unused pixels visible
# and your display can output without overscan
#disable_overscan=1
# uncomment the following to adjust overscan. Use positive numbers if console
# goes off screen, and negative if there is too much border
#overscan_left=16
#overscan_right=16
#overscan_top=16
#overscan_bottom=16
# uncomment to force a console size. By default it will be display's size minus
# overscan.
#framebuffer_width=1280
#framebuffer_height=720
# uncomment if hdmi display is not detected and composite is being output
#hdmi_force_hotplug=1
# uncomment to force a specific HDMI mode (this will force VGA)
#hdmi_group=1
#hdmi_mode=1
# uncomment to force a HDMI mode rather than DVI. This can make audio work in
# DMT (computer monitor) modes
#hdmi_drive=2
# uncomment to increase signal to HDMI, if you have interference, blanking, or
# no display
#config_hdmi_boost=4
# uncomment for composite PAL
#sdtv_mode=2
#uncomment to overclock the arm. 700 MHz is the default.
#arm_freq=800
# Uncomment some or all of these to enable the optional hardware interfaces
#dtparam=i2c_arm=on
#dtparam=i2s=on
#dtparam=spi=on
# Uncomment this to enable infrared communication.
#dtoverlay=gpio-ir,gpio_pin=17
#dtoverlay=gpio-ir-tx,gpio_pin=18
# Additional overlays and parameters are documented /boot/overlays/README
# Enable audio (loads snd_bcm2835)
dtparam=audio=on
[pi4]
# Enable DRM VC4 V3D driver on top of the dispmanx display stack
dtoverlay=vc4-fkms-v3d
max_framebuffers=2
[all]
#dtoverlay=vc4-fkms-v3d
start_x=1
gpu_mem=128
root@raspberrypi:/sys/class #
pi@raspberrypi:~ $ cat /etc/os-release
PRETTY_NAME="Raspbian GNU/Linux 10 (buster)"
NAME="Raspbian GNU/Linux"
VERSION_ID="10"
VERSION="10 (buster)"
VERSION_CODENAME=buster
ID=raspbian
ID_LIKE=debian
HOME_URL="http://www.raspbian.org/"
SUPPORT_URL="http://www.raspbian.org/RaspbianForums"
BUG_REPORT_URL="http://www.raspbian.org/RaspbianBugs"
nisy@raspberrypi:/dev $ ls -al /dev
总用量 4
drwxr-xr-x 17 root root 4280 1月 28 14:46 .
drwxr-xr-x 18 root root 4096 5月 3 2023 ..
crw-r--r-- 1 root root 10, 235 1月 28 14:46 autofs
drwxr-xr-x 2 root root 640 1月 28 14:46 block
crw------- 1 root root 10, 234 1月 28 14:46 btrfs-control
drwxr-xr-x 3 root root 60 1月 1 1970 bus
crw------- 1 root root 10, 126 1月 28 14:46 cachefiles
crw-rw---- 1 root video 237, 0 1月 28 14:46 cec0
crw-rw---- 1 root video 237, 1 1月 28 14:46 cec1
drwxr-xr-x 2 root root 3580 1月 28 14:46 char
crw--w---- 1 root tty 5, 1 1月 28 14:46 console
crw------- 1 root root 10, 123 1月 28 14:46 cpu_dma_latency
crw------- 1 root root 10, 203 1月 28 14:46 cuse
drwxr-xr-x 7 root root 140 1月 28 14:46 disk
drwxr-xr-x 2 root root 80 1月 1 1970 dma_heap
drwxr-xr-x 3 root root 120 1月 28 14:46 dri
crw-rw---- 1 root video 29, 0 1月 28 14:46 fb0
lrwxrwxrwx 1 root root 13 5月 13 2023 fd -> /proc/self/fd
crw-rw-rw- 1 root root 1, 7 1月 28 14:46 full
crw-rw-rw- 1 root root 10, 229 1月 28 14:46 fuse
crw-rw---- 1 root gpio 254, 0 1月 28 14:46 gpiochip0
crw-rw---- 1 root gpio 254, 1 1月 28 14:46 gpiochip1
crw-rw---- 1 root gpio 245, 0 1月 28 14:46 gpiomem
crw------- 1 root root 241, 0 1月 28 14:46 hidraw0
crw------- 1 root root 241, 1 1月 28 14:46 hidraw1
crw------- 1 root root 241, 2 1月 28 14:46 hidraw2
crw------- 1 root root 241, 3 1月 28 14:46 hidraw3
crw------- 1 root root 10, 183 1月 28 14:46 hwrng
crw-rw---- 1 root i2c 89, 0 1月 28 14:46 i2c-0
crw-rw---- 1 root i2c 89, 10 1月 28 14:46 i2c-10
crw-rw---- 1 root i2c 89, 20 1月 28 14:46 i2c-20
crw-rw---- 1 root i2c 89, 21 1月 28 14:46 i2c-21
crw-rw---- 1 root i2c 89, 22 1月 28 14:46 i2c-22
lrwxrwxrwx 1 root root 12 5月 13 2023 initctl -> /run/initctl
drwxr-xr-x 4 root root 220 1月 28 14:46 input
crw-r--r-- 1 root root 1, 11 1月 28 14:46 kmsg
crw-rw----+ 1 root kvm 10, 232 1月 28 14:46 kvm
lrwxrwxrwx 1 root root 28 5月 13 2023 log -> /run/systemd/journal/dev-log
brw-rw---- 1 root disk 7, 0 1月 28 14:46 loop0
brw-rw---- 1 root disk 7, 1 1月 28 14:46 loop1
brw-rw---- 1 root disk 7, 2 1月 28 14:46 loop2
brw-rw---- 1 root disk 7, 3 1月 28 14:46 loop3
brw-rw---- 1 root disk 7, 4 1月 28 14:46 loop4
brw-rw---- 1 root disk 7, 5 1月 28 14:46 loop5
brw-rw---- 1 root disk 7, 6 1月 28 14:46 loop6
brw-rw---- 1 root disk 7, 7 1月 28 14:46 loop7
crw-rw---- 1 root disk 10, 237 1月 28 14:46 loop-control
drwxr-xr-x 2 root root 60 1月 28 14:46 mapper
crw-rw---- 1 root video 238, 0 1月 28 14:46 media0
crw-rw---- 1 root video 238, 1 1月 28 14:46 media1
crw-rw---- 1 root video 238, 2 1月 28 14:46 media2
crw-rw---- 1 root video 238, 3 1月 28 14:46 media3
crw-rw---- 1 root video 238, 4 1月 28 14:46 media4
crw-r----- 1 root kmem 1, 1 1月 28 14:46 mem
brw-rw---- 1 root disk 179, 0 1月 28 14:46 mmcblk0
brw-rw---- 1 root disk 179, 1 1月 28 14:46 mmcblk0p1
brw-rw---- 1 root disk 179, 2 1月 28 14:46 mmcblk0p2
brw-rw---- 1 root disk 179, 5 1月 28 14:46 mmcblk0p5
brw-rw---- 1 root disk 179, 6 1月 28 14:46 mmcblk0p6
brw-rw---- 1 root disk 179, 7 1月 28 14:46 mmcblk0p7
drwxrwxrwt 2 root root 40 1月 1 1970 mqueue
drwxr-xr-x 2 root root 60 1月 28 14:46 net
crw-rw-rw- 1 root root 1, 3 1月 28 14:46 null
crw-r----- 1 root kmem 1, 4 1月 28 14:46 port
crw------- 1 root root 108, 0 1月 28 14:46 ppp
crw-rw-rw- 1 root tty 5, 2 3月 9 2024 ptmx
drwxr-xr-x 2 root root 0 5月 13 2023 pts
brw-rw---- 1 root disk 1, 0 1月 28 14:46 ram0
brw-rw---- 1 root disk 1, 1 1月 28 14:46 ram1
brw-rw---- 1 root disk 1, 10 1月 28 14:46 ram10
brw-rw---- 1 root disk 1, 11 1月 28 14:46 ram11
brw-rw---- 1 root disk 1, 12 1月 28 14:46 ram12
brw-rw---- 1 root disk 1, 13 1月 28 14:46 ram13
brw-rw---- 1 root disk 1, 14 1月 28 14:46 ram14
brw-rw---- 1 root disk 1, 15 1月 28 14:46 ram15
brw-rw---- 1 root disk 1, 2 1月 28 14:46 ram2
brw-rw---- 1 root disk 1, 3 1月 28 14:46 ram3
brw-rw---- 1 root disk 1, 4 1月 28 14:46 ram4
brw-rw---- 1 root disk 1, 5 1月 28 14:46 ram5
brw-rw---- 1 root disk 1, 6 1月 28 14:46 ram6
brw-rw---- 1 root disk 1, 7 1月 28 14:46 ram7
brw-rw---- 1 root disk 1, 8 1月 28 14:46 ram8
brw-rw---- 1 root disk 1, 9 1月 28 14:46 ram9
crw-rw-rw- 1 root root 1, 8 1月 28 14:46 random
crw-rw-r--+ 1 root netdev 10, 242 1月 28 14:46 rfkill
lrwxrwxrwx 1 root root 7 1月 28 14:46 serial1 -> ttyAMA0
drwxrwxrwt 2 root root 40 3月 9 12:04 shm
drwxr-xr-x 3 root root 220 1月 28 14:46 snd
lrwxrwxrwx 1 root root 15 5月 13 2023 stderr -> /proc/self/fd/2
lrwxrwxrwx 1 root root 15 5月 13 2023 stdin -> /proc/self/fd/0
lrwxrwxrwx 1 root root 15 5月 13 2023 stdout -> /proc/self/fd/1
crw-rw-rw- 1 root tty 5, 0 1月 28 14:46 tty
crw--w---- 1 root tty 4, 0 1月 28 14:46 tty0
crw------- 1 nisy tty 4, 1 1月 28 14:46 tty1
crw--w---- 1 root tty 4, 10 1月 28 14:46 tty10
crw--w---- 1 root tty 4, 11 1月 28 14:46 tty11
crw--w---- 1 root tty 4, 12 1月 28 14:46 tty12
crw--w---- 1 root tty 4, 13 1月 28 14:46 tty13
crw--w---- 1 root tty 4, 14 1月 28 14:46 tty14
crw--w---- 1 root tty 4, 15 1月 28 14:46 tty15
crw--w---- 1 root tty 4, 16 1月 28 14:46 tty16
crw--w---- 1 root tty 4, 17 1月 28 14:46 tty17
crw--w---- 1 root tty 4, 18 1月 28 14:46 tty18
crw--w---- 1 root tty 4, 19 1月 28 14:46 tty19
crw--w---- 1 root tty 4, 2 1月 28 14:46 tty2
crw--w---- 1 root tty 4, 20 1月 28 14:46 tty20
crw--w---- 1 root tty 4, 21 1月 28 14:46 tty21
crw--w---- 1 root tty 4, 22 1月 28 14:46 tty22
crw--w---- 1 root tty 4, 23 1月 28 14:46 tty23
crw--w---- 1 root tty 4, 24 1月 28 14:46 tty24
crw--w---- 1 root tty 4, 25 1月 28 14:46 tty25
crw--w---- 1 root tty 4, 26 1月 28 14:46 tty26
crw--w---- 1 root tty 4, 27 1月 28 14:46 tty27
crw--w---- 1 root tty 4, 28 1月 28 14:46 tty28
crw--w---- 1 root tty 4, 29 1月 28 14:46 tty29
crw--w---- 1 root tty 4, 3 1月 28 14:46 tty3
crw--w---- 1 root tty 4, 30 1月 28 14:46 tty30
crw--w---- 1 root tty 4, 31 1月 28 14:46 tty31
crw--w---- 1 root tty 4, 32 1月 28 14:46 tty32
crw--w---- 1 root tty 4, 33 1月 28 14:46 tty33
crw--w---- 1 root tty 4, 34 1月 28 14:46 tty34
crw--w---- 1 root tty 4, 35 1月 28 14:46 tty35
crw--w---- 1 root tty 4, 36 1月 28 14:46 tty36
crw--w---- 1 root tty 4, 37 1月 28 14:46 tty37
crw--w---- 1 root tty 4, 38 1月 28 14:46 tty38
crw--w---- 1 root tty 4, 39 1月 28 14:46 tty39
crw--w---- 1 root tty 4, 4 1月 28 14:46 tty4
crw--w---- 1 root tty 4, 40 1月 28 14:46 tty40
crw--w---- 1 root tty 4, 41 1月 28 14:46 tty41
crw--w---- 1 root tty 4, 42 1月 28 14:46 tty42
crw--w---- 1 root tty 4, 43 1月 28 14:46 tty43
crw--w---- 1 root tty 4, 44 1月 28 14:46 tty44
crw--w---- 1 root tty 4, 45 1月 28 14:46 tty45
crw--w---- 1 root tty 4, 46 1月 28 14:46 tty46
crw--w---- 1 root tty 4, 47 1月 28 14:46 tty47
crw--w---- 1 root tty 4, 48 1月 28 14:46 tty48
crw--w---- 1 root tty 4, 49 1月 28 14:46 tty49
crw--w---- 1 root tty 4, 5 1月 28 14:46 tty5
crw--w---- 1 root tty 4, 50 1月 28 14:46 tty50
crw--w---- 1 root tty 4, 51 1月 28 14:46 tty51
crw--w---- 1 root tty 4, 52 1月 28 14:46 tty52
crw--w---- 1 root tty 4, 53 1月 28 14:46 tty53
crw--w---- 1 root tty 4, 54 1月 28 14:46 tty54
crw--w---- 1 root tty 4, 55 1月 28 14:46 tty55
crw--w---- 1 root tty 4, 56 1月 28 14:46 tty56
crw--w---- 1 root tty 4, 57 1月 28 14:46 tty57
crw--w---- 1 root tty 4, 58 1月 28 14:46 tty58
crw--w---- 1 root tty 4, 59 1月 28 14:46 tty59
crw--w---- 1 root tty 4, 6 1月 28 14:46 tty6
crw--w---- 1 root tty 4, 60 1月 28 14:46 tty60
crw--w---- 1 root tty 4, 61 1月 28 14:46 tty61
crw--w---- 1 root tty 4, 62 1月 28 14:46 tty62
crw--w---- 1 root tty 4, 63 1月 28 14:46 tty63
crw--w---- 1 root tty 4, 7 1月 28 14:46 tty7
crw--w---- 1 root tty 4, 8 1月 28 14:46 tty8
crw--w---- 1 root tty 4, 9 1月 28 14:46 tty9
crw-rw---- 1 root dialout 204, 64 1月 28 14:46 ttyAMA0
crw------- 1 root root 5, 3 1月 28 14:46 ttyprintk
crw------- 1 root root 10, 239 1月 28 14:46 uhid
crw------- 1 root root 10, 223 1月 28 14:46 uinput
crw-rw-rw- 1 root root 1, 9 1月 28 14:46 urandom
drwxr-xr-x 2 root root 60 1月 28 14:46 usb
drwxr-xr-x 3 root root 60 1月 28 14:46 v4l
crw-rw----+ 1 root video 81, 15 1月 28 14:46 v4l-subdev0
crw-rw---- 1 root video 10, 124 1月 28 14:46 vchiq
crw-rw---- 1 root video 10, 125 1月 28 14:46 vcio
crw------- 1 root root 246, 0 1月 28 14:46 vc-mem
crw-rw---- 1 root tty 7, 0 1月 28 14:46 vcs
crw-rw---- 1 root tty 7, 1 1月 28 14:46 vcs1
crw-rw---- 1 root tty 7, 2 1月 28 14:46 vcs2
crw-rw---- 1 root tty 7, 3 1月 28 14:46 vcs3
crw-rw---- 1 root tty 7, 4 1月 28 14:46 vcs4
crw-rw---- 1 root tty 7, 5 1月 28 14:46 vcs5
crw-rw---- 1 root tty 7, 6 1月 28 14:46 vcs6
crw-rw---- 1 root tty 7, 7 1月 28 14:46 vcs7
crw-rw---- 1 root tty 7, 128 1月 28 14:46 vcsa
crw-rw---- 1 root tty 7, 129 1月 28 14:46 vcsa1
crw-rw---- 1 root tty 7, 130 1月 28 14:46 vcsa2
crw-rw---- 1 root tty 7, 131 1月 28 14:46 vcsa3
crw-rw---- 1 root tty 7, 132 1月 28 14:46 vcsa4
crw-rw---- 1 root tty 7, 133 1月 28 14:46 vcsa5
crw-rw---- 1 root tty 7, 134 1月 28 14:46 vcsa6
crw-rw---- 1 root tty 7, 135 1月 28 14:46 vcsa7
crw-rw---- 1 root video 10, 122 1月 28 14:46 vcsm-cma
crw-rw---- 1 root tty 7, 64 1月 28 14:46 vcsu
crw-rw---- 1 root tty 7, 65 1月 28 14:46 vcsu1
crw-rw---- 1 root tty 7, 66 1月 28 14:46 vcsu2
crw-rw---- 1 root tty 7, 67 1月 28 14:46 vcsu3
crw-rw---- 1 root tty 7, 68 1月 28 14:46 vcsu4
crw-rw---- 1 root tty 7, 69 1月 28 14:46 vcsu5
crw-rw---- 1 root tty 7, 70 1月 28 14:46 vcsu6
crw-rw---- 1 root tty 7, 71 1月 28 14:46 vcsu7
crw------- 1 root root 10, 127 1月 28 14:46 vga_arbiter
crw------- 1 root root 10, 137 1月 28 14:46 vhci
crw------- 1 root root 10, 238 1月 28 14:46 vhost-net
crw------- 1 root root 10, 241 1月 28 14:46 vhost-vsock
crw-rw----+ 1 root video 81, 14 1月 28 14:46 video0
crw-rw----+ 1 root video 81, 2 1月 28 14:46 video10
crw-rw----+ 1 root video 81, 3 1月 28 14:46 video11
crw-rw----+ 1 root video 81, 6 1月 28 14:46 video12
crw-rw----+ 1 root video 81, 0 1月 28 14:46 video13
crw-rw----+ 1 root video 81, 1 1月 28 14:46 video14
crw-rw----+ 1 root video 81, 4 1月 28 14:46 video15
crw-rw----+ 1 root video 81, 5 1月 28 14:46 video16
crw-rw----+ 1 root video 81, 7 1月 28 14:46 video18
crw-rw----+ 1 root video 81, 13 1月 28 14:46 video19
crw-rw----+ 1 root video 81, 8 1月 28 14:46 video20
crw-rw----+ 1 root video 81, 10 1月 28 14:46 video21
crw-rw----+ 1 root video 81, 11 1月 28 14:46 video22
crw-rw----+ 1 root video 81, 12 1月 28 14:46 video23
crw-rw----+ 1 root video 81, 9 1月 28 14:46 video31
crw------- 1 root root 10, 130 1月 28 14:46 watchdog
crw------- 1 root root 248, 0 1月 28 14:46 watchdog0
crw-rw-rw- 1 root root 1, 5 1月 28 14:46 zero
proc文件系统
pi@raspberrypi:/proc $ cat cpuinfo
processor : 0
model name : ARMv7 Processor rev 3 (v7l)
BogoMIPS : 126.00
Features : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x0
CPU part : 0xd08
CPU revision : 3
processor : 1
model name : ARMv7 Processor rev 3 (v7l)
BogoMIPS : 126.00
Features : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x0
CPU part : 0xd08
CPU revision : 3
processor : 2
model name : ARMv7 Processor rev 3 (v7l)
BogoMIPS : 126.00
Features : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x0
CPU part : 0xd08
CPU revision : 3
processor : 3
model name : ARMv7 Processor rev 3 (v7l)
BogoMIPS : 126.00
Features : half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt vfpd32 lpae evtstrm crc32
CPU implementer : 0x41
CPU architecture: 7
CPU variant : 0x0
CPU part : 0xd08
CPU revision : 3
Hardware : BCM2711
Revision : c03111
Serial : 10000000bafb5028
Model : Raspberry Pi 4 Model B Rev 1.1
pi@raspberrypi:/proc $ cat meminfo
MemTotal: 3866504 kB
MemFree: 3455744 kB
MemAvailable: 3548456 kB
Buffers: 29196 kB
Cached: 222252 kB
SwapCached: 0 kB
Active: 86360 kB
Inactive: 230344 kB
Active(anon): 540 kB
Inactive(anon): 112308 kB
Active(file): 85820 kB
Inactive(file): 118036 kB
Unevictable: 30248 kB
Mlocked: 16 kB
HighTotal: 3211264 kB
HighFree: 2882908 kB
LowTotal: 655240 kB
LowFree: 572836 kB
SwapTotal: 102396 kB
SwapFree: 102396 kB
Dirty: 0 kB
Writeback: 0 kB
AnonPages: 95600 kB
Mapped: 97464 kB
Shmem: 47596 kB
KReclaimable: 15648 kB
Slab: 32292 kB
SReclaimable: 15648 kB
SUnreclaim: 16644 kB
KernelStack: 1696 kB
PageTables: 4108 kB
NFS_Unstable: 0 kB
Bounce: 0 kB
WritebackTmp: 0 kB
CommitLimit: 2035648 kB
Committed_AS: 846776 kB
VmallocTotal: 245760 kB
VmallocUsed: 5300 kB
VmallocChunk: 0 kB
Percpu: 464 kB
CmaTotal: 262144 kB
CmaFree: 247876 kB
pi@raspberrypi:/proc $ cat mounts
/dev/root / ext4 rw,noatime 0 0
devtmpfs /dev devtmpfs rw,relatime,size=1801156k,nr_inodes=97762,mode=755 0 0
sysfs /sys sysfs rw,nosuid,nodev,noexec,relatime 0 0
proc /proc proc rw,relatime 0 0
securityfs /sys/kernel/security securityfs rw,nosuid,nodev,noexec,relatime 0 0
tmpfs /dev/shm tmpfs rw,nosuid,nodev 0 0
devpts /dev/pts devpts rw,nosuid,noexec,relatime,gid=5,mode=620,ptmxmode=000 0 0
tmpfs /run tmpfs rw,nosuid,nodev,mode=755 0 0
tmpfs /run/lock tmpfs rw,nosuid,nodev,noexec,relatime,size=5120k 0 0
tmpfs /sys/fs/cgroup tmpfs ro,nosuid,nodev,noexec,mode=755 0 0
cgroup2 /sys/fs/cgroup/unified cgroup2 rw,nosuid,nodev,noexec,relatime,nsdelegate 0 0
cgroup /sys/fs/cgroup/systemd cgroup rw,nosuid,nodev,noexec,relatime,xattr,name=systemd 0 0
none /sys/fs/bpf bpf rw,nosuid,nodev,noexec,relatime,mode=700 0 0
cgroup /sys/fs/cgroup/net_cls,net_prio cgroup rw,nosuid,nodev,noexec,relatime,net_cls,net_prio 0 0
cgroup /sys/fs/cgroup/cpu,cpuacct cgroup rw,nosuid,nodev,noexec,relatime,cpu,cpuacct 0 0
cgroup /sys/fs/cgroup/cpuset cgroup rw,nosuid,nodev,noexec,relatime,cpuset 0 0
cgroup /sys/fs/cgroup/pids cgroup rw,nosuid,nodev,noexec,relatime,pids 0 0
cgroup /sys/fs/cgroup/freezer cgroup rw,nosuid,nodev,noexec,relatime,freezer 0 0
cgroup /sys/fs/cgroup/devices cgroup rw,nosuid,nodev,noexec,relatime,devices 0 0
cgroup /sys/fs/cgroup/blkio cgroup rw,nosuid,nodev,noexec,relatime,blkio 0 0
cgroup /sys/fs/cgroup/perf_event cgroup rw,nosuid,nodev,noexec,relatime,perf_event 0 0
systemd-1 /proc/sys/fs/binfmt_misc autofs rw,relatime,fd=41,pgrp=1,timeout=0,minproto=5,maxproto=5,direct 0 0
mqueue /dev/mqueue mqueue rw,relatime 0 0
debugfs /sys/kernel/debug debugfs rw,relatime 0 0
sunrpc /run/rpc_pipefs rpc_pipefs rw,relatime 0 0
configfs /sys/kernel/config configfs rw,relatime 0 0
/dev/mmcblk0p1 /boot vfat rw,relatime,fmask=0022,dmask=0022,codepage=437,iocharset=ascii,shortname=mixed,errors=remount-ro 0 0
tmpfs /run/user/1000 tmpfs rw,nosuid,nodev,relatime,size=386648k,mode=700,uid=1000,gid=1000 0 0
gvfsd-fuse /run/user/1000/gvfs fuse.gvfsd-fuse rw,nosuid,nodev,relatime,user_id=1000,group_id=1000 0 0
fusectl /sys/fs/fuse/connections fusectl rw,relatime 0 0
pi@raspberrypi:/proc $ cat cmdline
coherent_pool=1M 8250.nr_uarts=0 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1 video=HDMI-A-1:1440x900M@60 smsc95xx.macaddr=DC:A6:32:17:19:A2 vc_mem.mem_base=0x3ec00000 vc_mem.mem_size=0x40000000 console=ttyS0,115200 console=tty1 root=PARTUUID=97685b82-02 rootfstype=ext4 elevator=deadline fsck.repair=yes rootwait quiet splash plymouth.ignore-serial-consoles
pi@raspberrypi:/proc $ cat interrupts
CPU0 CPU1 CPU2 CPU3
25: 1 0 0 0 GICv2 99 Level timer
26: 0 0 0 0 GICv2 29 Level arch_timer
27: 17565 7886 8942 10472 GICv2 30 Level arch_timer
33: 4824 0 0 0 GICv2 65 Level fe00b880.mailbox
36: 6507 0 0 0 GICv2 153 Level uart-pl011
39: 347 0 0 0 GICv2 114 Level DMA IRQ
46: 2148 0 0 0 GICv2 66 Level VCHIQ doorbell
47: 29807 0 0 0 GICv2 158 Level mmc1, mmc0
48: 46489 0 0 0 GICv2 144 Level vc4 firmware kms
54: 3730 0 0 0 GICv2 189 Level eth0
55: 0 0 0 0 GICv2 190 Level eth0
61: 7059 0 0 0 GICv2 106 Level v3d
62: 0 0 0 0 GICv2 175 Level PCIe PME
63: 2364 0 0 0 BRCM STB PCIe MSI 524288 Edge xhci_hcd
IPI0: 0 0 0 0 CPU wakeup interrupts
IPI1: 0 0 0 0 Timer broadcast interrupts
IPI2: 254 258 277 295 Rescheduling interrupts
IPI3: 9411 11020 18603 13819 Function call interrupts
IPI4: 0 0 0 0 CPU stop interrupts
IPI5: 1805 707 574 817 IRQ work interrupts
IPI6: 0 0 0 0 completion interrupts
Err: 0
pi@raspberrypi:/proc $ cat devices
Character devices:
1 mem
4 /dev/vc/0
4 tty
5 /dev/tty
5 /dev/console
5 /dev/ptmx
5 ttyprintk
7 vcs
10 misc
13 input
14 sound
29 fb
81 video4linux
89 i2c
116 alsa
128 ptm
136 pts
162 raw
180 usb
189 usb_device
204 ttyAMA
216 rfcomm
226 drm
236 cec
237 media
238 rpivid-vp9mem
239 rpivid-h264mem
240 rpivid-intcmem
241 rpivid-hevcmem
242 uio
243 vchiq
244 hidraw
245 rpmb
246 bcm2835-gpiomem
247 vcio
248 vc-mem
249 bsg
250 watchdog
251 lirc
252 rtc
253 dma_heap
254 gpiochip
Block devices:
1 ramdisk
7 loop
8 sd
65 sd
66 sd
67 sd
68 sd
69 sd
70 sd
71 sd
128 sd
129 sd
130 sd
131 sd
132 sd
133 sd
134 sd
135 sd
179 mmc
259 blkext
root@raspberrypi:/proc # cat iomem
00000000-37ffffff : System RAM
00008000-00ffffff : Kernel code
01200000-01432143 : Kernel data
40000000-fbffffff : System RAM
fd500000-fd50930f : fd500000.pcie pcie@7d500000
fd580000-fd58ffff : fd580000.ethernet ethernet@7d580000
fd580e14-fd580e1c : unimac-mdio.-19
fe007000-fe007aff : fe007000.dma dma@7e007000
fe007b00-fe007eff : fe007b00.dma dma@7e007b00
fe00a000-fe00a023 : fe100000.watchdog watchdog@7e100000
fe00b840-fe00b87b : fe00b840.mailbox mailbox@7e00b840
fe00b880-fe00b8bf : fe00b880.mailbox mailbox@7e00b880
fe100000-fe100113 : fe100000.watchdog watchdog@7e100000
fe101000-fe102fff : fe101000.cprman cprman@7e101000
fe104000-fe104027 : fe104000.rng rng@7e104000
fe200000-fe2000b3 : fe200000.gpio gpio@7e200000
fe201000-fe2011ff : serial@7e201000
fe201000-fe2011ff : fe201000.serial serial@7e201000
fe215000-fe215007 : fe215000.aux aux@7e215000
fe300000-fe3000ff : fe300000.mmcnr mmcnr@7e300000
fe340000-fe3400ff : fe340000.emmc2 emmc2@7e340000
fe600000-fe6000ff : fe600000.firmwarekms firmwarekms@7e600000
fec00000-fec03fff : fec00000.v3d hub
fec04000-fec07fff : fec00000.v3d core0
fec11000-fec1101f : fe100000.watchdog watchdog@7e100000
600000000-63fffffff : pcie@7d500000
600000000-6000fffff : PCI Bus 0000:01
600000000-600000fff : 0000:01:00.0
600000000-600000fff : xhci-hcd
i2c相关
nisy@raspberrypi:~ $ i2cdetect -l
i2c-20 i2c Broadcom STB : I2C adapter
i2c-10 i2c i2c-22-mux (chan_id 1) I2C adapter
i2c-1 i2c bcm2835 (i2c@7e804000) I2C adapter
i2c-21 i2c Broadcom STB : I2C adapter
i2c-0 i2c i2c-22-mux (chan_id 0) I2C adapter
i2c-22 i2c bcm2835 (i2c@7e205000) I2C adapter
nisy@raspberrypi:~ $ i2cdetect -y 0
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --
nisy@raspberrypi:~ $ i2cdetect -y 1
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --
nisy@raspberrypi:~ $ i2cdetect -y 10
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- UU -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --
nisy@raspberrypi:~ $ i2cdetect -y 20
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: 08 09 0a 0b 0c 0d 0e 0f
10: 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f
20: 20 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f
30: -- -- -- -- -- -- -- 37 38 39 3a 3b 3c 3d 3e 3f
40: 40 41 42 43 44 45 46 47 48 49 4a 4b 4c 4d 4e 4f
50: 50 -- -- -- -- -- -- -- -- 59 -- -- -- -- -- --
60: 60 61 62 63 64 65 66 67 68 69 6a 6b 6c 6d 6e 6f
70: 70 71 72 73 74 75 76 77
nisy@raspberrypi:~ $ i2cdetect -y 21
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: 08 09 0a 0b 0c 0d 0e 0f
10: 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f
20: 20 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f
30: -- -- -- -- -- -- -- -- 38 39 3a 3b 3c 3d 3e 3f
40: 40 41 42 43 44 45 46 47 48 49 4a 4b 4c 4d 4e 4f
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: 60 61 62 63 64 65 66 67 68 69 6a 6b 6c 6d 6e 6f
70: 70 71 72 73 74 75 76 77
nisy@raspberrypi:~ $ i2cdetect -y 22
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- UU -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --
nisy@raspberrypi:~ $
sysfs文件系统
nisy@raspberrypi:~ $ ls -al /sys/devices/platform/
total 0
drwxr-xr-x 26 root root 0 Sep 13 2022 .
drwxr-xr-x 10 root root 0 Sep 13 2022 ..
drwxr-xr-x 4 root root 0 Mar 19 23:06 3ef62cc0.nvram
drwxr-xr-x 3 root root 0 Mar 19 23:06 arm-pmu
drwxr-xr-x 4 root root 0 Mar 19 23:06 cam1_regulator
drwxr-xr-x 4 root root 0 Mar 19 23:06 cam_dummy_reg
drwxr-xr-x 3 root root 0 Mar 19 23:06 chosen
drwxr-xr-x 3 root root 0 Mar 19 23:06 cpufreq-dt
drwxr-xr-x 4 root root 0 Sep 13 2022 emmc2bus
drwxr-xr-x 4 root root 0 Mar 19 23:06 'Fixed MDIO bus.0'
drwxr-xr-x 4 root root 0 Mar 19 23:06 fixedregulator_3v3
drwxr-xr-x 4 root root 0 Mar 19 23:06 fixedregulator_5v0
drwxr-xr-x 5 root root 0 Mar 19 23:06 gpu
drwxr-xr-x 3 root root 0 Mar 19 23:06 kgdboc
drwxr-xr-x 4 root root 0 Mar 19 23:06 leds
drwxr-xr-x 3 root root 0 Mar 19 23:06 phy
drwxr-xr-x 2 root root 0 Mar 19 23:23 power
drwxr-xr-x 4 root root 0 Mar 19 23:06 reg-dummy
drwxr-xr-x 3 root root 0 Mar 19 23:06 regulatory.0
drwxr-xr-x 7 root root 0 Mar 19 23:06 scb
drwxr-xr-x 4 root root 0 Mar 19 23:06 sd_io_1v8_reg
drwxr-xr-x 4 root root 0 Mar 19 23:06 sd_vcc_reg
drwxr-xr-x 3 root root 0 Mar 19 23:06 snd-soc-dummy
drwxr-xr-x 31 root root 0 Mar 19 23:06 soc
drwxr-xr-x 3 root root 0 Mar 19 23:06 timer
-rw-r--r-- 1 root root 4096 Mar 19 23:06 uevent
drwxr-xr-x 4 root root 0 Mar 19 23:06 v3dbus
thermal相关
nisy@raspberrypi:/sys/bus/media/devices $ cat /sys/class/thermal/thermal_zone*/type
cpu-thermal
nisy@raspberrypi:/sys/bus/media/devices $ ls -al /sys/class/thermal/
总用量 0
drwxr-xr-x 2 root root 0 1月 28 14:46 .
drwxr-xr-x 64 root root 0 5月 13 2023 ..
lrwxrwxrwx 1 root root 0 1月 28 14:46 thermal_zone0 -> ../../devices/virtual/thermal/thermal_zone0
nisy@raspberrypi:/sys/bus/media/devices $ cd /sys/class/thermal/
nisy@raspberrypi:/sys/class/thermal $ cd thermal_zone0
nisy@raspberrypi:/sys/class/thermal/thermal_zone0 $ ls -al
总用量 0
drwxr-xr-x 4 root root 0 1月 28 14:46 .
drwxr-xr-x 3 root root 0 1月 28 14:46 ..
-r--r--r-- 1 root root 4096 3月 9 11:58 available_policies
drwxr-xr-x 3 root root 0 1月 28 14:46 hwmon0
-rw-r--r-- 1 root root 4096 3月 9 11:58 integral_cutoff
-rw-r--r-- 1 root root 4096 3月 9 11:58 k_d
-rw-r--r-- 1 root root 4096 3月 9 11:58 k_i
-rw-r--r-- 1 root root 4096 3月 9 11:58 k_po
-rw-r--r-- 1 root root 4096 3月 9 11:58 k_pu
-rw-r--r-- 1 root root 4096 3月 9 11:58 mode
-rw-r--r-- 1 root root 4096 3月 9 11:58 offset
-rw-r--r-- 1 root root 4096 3月 9 11:58 policy
drwxr-xr-x 2 root root 0 3月 9 11:58 power
-rw-r--r-- 1 root root 4096 3月 9 11:58 slope
lrwxrwxrwx 1 root root 0 1月 28 14:46 subsystem -> ../../../../class/thermal
-rw-r--r-- 1 root root 4096 3月 9 11:58 sustainable_power
-r--r--r-- 1 root root 4096 3月 9 11:58 temp
-rw-r--r-- 1 root root 4096 3月 9 11:58 trip_point_0_hyst
-r--r--r-- 1 root root 4096 3月 9 11:58 trip_point_0_temp
-r--r--r-- 1 root root 4096 3月 9 11:58 trip_point_0_type
-r--r--r-- 1 root root 4096 3月 9 11:57 type
-rw-r--r-- 1 root root 4096 1月 28 14:46 uevent
nisy@raspberrypi:/sys/class/thermal/thermal_zone0 $ cat temp
43816
nisy@raspberrypi:/sys/class/thermal/thermal_zone0 $
摄像头相关
//从基于Debian Bullseye 的 Raspberry Pi OS 开始的操作系统版本,将不再支持旧的相机系统和应用程序，而 Raspberry Pi 的 libcamera-app将被构建和预安装。
libcamera-apps是基于libcamera的相机控制例程，它提供了一系列的功能来控制和获取相机的图像和视频。以下是如何在树莓派上使用libcamera-apps的一些例子：
- libcamera-hello：
这个应用主要用于输出从相机中获取的预览图像。你可以通过运行以下命令来使用它：
libcamera-hello
运行此命令后，你应该能在终端窗口中看到从相机捕获的实时预览图像。
2. libcamera-jpeg：
这个应用允许你通过相机获取高分辨率的JPEG图像。你可以使用以下命令来捕获并保存一张JPEG图像：
libcamera-jpeg -o output.jpg
这将使用相机捕获一张JPEG图像，并将其保存为output.jpg。
3. libcamera-still：
这个应用的功能类似于raspistill，它用于捕获相机的静态图像。你可以使用类似的命令来捕获图像，并指定输出文件名和格式。
4. libcamera-vid：
这是一个视频捕获程序，允许你录制相机的视频流。例如，要录制一个5秒钟的视频，你可以使用以下命令：
libcamera-vid -t 5 -o output.h264
这将录制一个5秒钟的视频，并将其保存为H.264格式的output.h264文件。
5. libcamera-raw：
这个程序允许你直接从相机中获取未压缩的原始RAW图像。这对于需要最大图像质量和后处理灵活性的用户来说非常有用。
6. libcamera-detect：
如果用户在树莓派上安装了TensorFlow Lite软件，则可以使用此程序进行目标检测图像捕获。这允许你使用机器学习模型在实时视频流中检测特定的对象或特征。
请注意，使用libcamera-apps之前，你需要确保你的树莓派已经正确安装了libcamera和相关依赖，并且相机硬件已经正确连接和配置。
为了获得更详细的信息和更多的使用示例，你可以查阅libcamera-apps的官方文档或相关的社区论坛。这些资源通常提供了更深入的指南和常见问题解答，帮助你更好地理解和使用这些应用。
nisy@raspberrypi:~ $ ls -al /sys/bus/media/devices/
总用量 0
drwxr-xr-x 2 root root 0 1月 28 14:47 .
drwxr-xr-x 4 root root 0 1月 28 14:46 ..
lrwxrwxrwx 1 root root 0 1月 28 14:47 media0 -> ../../../devices/platform/soc/fe801000.csi/media0
lrwxrwxrwx 1 root root 0 1月 28 14:47 media1 -> ../../../devices/platform/soc/fe00b840.mailbox/bcm2835-isp/media1
lrwxrwxrwx 1 root root 0 1月 28 14:47 media2 -> ../../../devices/platform/soc/fe00b840.mailbox/bcm2835-codec/media2
lrwxrwxrwx 1 root root 0 1月 28 14:47 media3 -> ../../../devices/platform/soc/fe00b840.mailbox/bcm2835-isp/media3
lrwxrwxrwx 1 root root 0 1月 28 14:47 media4 -> ../../../devices/platform/scb/feb10000.codec/media4
nisy@raspberrypi:/sys/bus/media/devices $ cat media0/model
unicam
nisy@raspberrypi:/sys/bus/media/devices $ cat media1/model
bcm2835-isp
nisy@raspberrypi:/sys/bus/media/devices $ cat media2/model
bcm2835-codec
nisy@raspberrypi:/sys/bus/media/devices $ cat media3/model
bcm2835-isp
nisy@raspberrypi:/sys/bus/media/devices $ cat media4/model
rpivid
nisy@raspberrypi:~ $ ls -al /sys/bus/media/devices
total 0
drwxr-xr-x 2 root root 0 Mar 19 22:31 .
drwxr-xr-x 4 root root 0 Mar 19 22:17 ..
lrwxrwxrwx 1 root root 0 Mar 19 22:31 media0 -> ../../../devices/platform/soc/fe00b840.mailbox/bcm2835-isp/media0
lrwxrwxrwx 1 root root 0 Mar 19 22:31 media1 -> ../../../devices/platform/soc/fe801000.csi/media1
lrwxrwxrwx 1 root root 0 Mar 19 22:31 media2 -> ../../../devices/platform/soc/fe00b840.mailbox/bcm2835-isp/media2
lrwxrwxrwx 1 root root 0 Mar 19 22:31 media3 -> ../../../devices/platform/scb/feb10000.codec/media3
lrwxrwxrwx 1 root root 0 Mar 19 22:31 media4 -> ../../../devices/platform/soc/fe00b840.mailbox/bcm2835-codec/media4
nisy@raspberrypi:~ $ ls -al /sys/class/video4linux
total 0
drwxr-xr-x 2 root root 0 Mar 19 22:17 .
drwxr-xr-x 63 root root 0 Sep 13 2022 ..
lrwxrwxrwx 1 root root 0 Mar 19 22:17 v4l-subdev0 -> ../../devices/platform/soc/fe205000.i2c/i2c-22/i2c-10/10-0036/video4linux/v4l-subdev0
lrwxrwxrwx 1 root root 0 Mar 19 22:17 video0 -> ../../devices/platform/soc/fe801000.csi/video4linux/video0
lrwxrwxrwx 1 root root 0 Mar 19 22:17 video10 -> ../../devices/platform/soc/fe00b840.mailbox/bcm2835-codec/video4linux/video10
lrwxrwxrwx 1 root root 0 Mar 19 22:17 video11 -> ../../devices/platform/soc/fe00b840.mailbox/bcm2835-codec/video4linux/video11
lrwxrwxrwx 1 root root 0 Mar 19 22:17 video12 -> ../../devices/platform/soc/fe00b840.mailbox/bcm2835-codec/video4linux/video12
lrwxrwxrwx 1 root root 0 Mar 19 22:17 video13 -> ../../devices/platform/soc/fe00b840.mailbox/bcm2835-isp/video4linux/video13
lrwxrwxrwx 1 root root 0 Mar 19 22:17 video14 -> ../../devices/platform/soc/fe00b840.mailbox/bcm2835-isp/video4linux/video14
lrwxrwxrwx 1 root root 0 Mar 19 22:17 video15 -> ../../devices/platform/soc/fe00b840.mailbox/bcm2835-isp/video4linux/video15
lrwxrwxrwx 1 root root 0 Mar 19 22:17 video16 -> ../../devices/platform/soc/fe00b840.mailbox/bcm2835-isp/video4linux/video16
lrwxrwxrwx 1 root root 0 Mar 19 22:17 video18 -> ../../devices/platform/soc/fe00b840.mailbox/bcm2835-codec/video4linux/video18
lrwxrwxrwx 1 root root 0 Mar 19 22:17 video19 -> ../../devices/platform/scb/feb10000.codec/video4linux/video19
lrwxrwxrwx 1 root root 0 Mar 19 22:17 video20 -> ../../devices/platform/soc/fe00b840.mailbox/bcm2835-isp/video4linux/video20
lrwxrwxrwx 1 root root 0 Mar 19 22:17 video21 -> ../../devices/platform/soc/fe00b840.mailbox/bcm2835-isp/video4linux/video21
lrwxrwxrwx 1 root root 0 Mar 19 22:17 video22 -> ../../devices/platform/soc/fe00b840.mailbox/bcm2835-isp/video4linux/video22
lrwxrwxrwx 1 root root 0 Mar 19 22:17 video23 -> ../../devices/platform/soc/fe00b840.mailbox/bcm2835-isp/video4linux/video23
lrwxrwxrwx 1 root root 0 Mar 19 22:17 video31 -> ../../devices/platform/soc/fe00b840.mailbox/bcm2835-codec/video4linux/video31
nisy@raspberrypi:~ $ for i in /sys/class/video4linux/video* ; do echo $i ;echo dev:$(cat $i/dev); echo name:$(cat $i/name);echo index:$(cat $i/index);echo link_name:$(cat $i/link_name);echo; done
/sys/class/video4linux/video0
dev:81:14
name:unicam-image
index:0
cat: /sys/class/video4linux/video0/link_name: No such file or directory
link_name:
/sys/class/video4linux/video10
dev:81:8
name:bcm2835-codec-decode
index:0
cat: /sys/class/video4linux/video10/link_name: No such file or directory
link_name:
/sys/class/video4linux/video11
dev:81:10
name:bcm2835-codec-encode
index:0
cat: /sys/class/video4linux/video11/link_name: No such file or directory
link_name:
/sys/class/video4linux/video12
dev:81:11
name:bcm2835-codec-isp
index:0
cat: /sys/class/video4linux/video12/link_name: No such file or directory
link_name:
/sys/class/video4linux/video13
dev:81:0
name:bcm2835-isp-output0
index:0
cat: /sys/class/video4linux/video13/link_name: No such file or directory
link_name:
/sys/class/video4linux/video14
dev:81:1
name:bcm2835-isp-capture0
index:1
cat: /sys/class/video4linux/video14/link_name: No such file or directory
link_name:
/sys/class/video4linux/video15
dev:81:2
name:bcm2835-isp-capture1
index:2
cat: /sys/class/video4linux/video15/link_name: No such file or directory
link_name:
/sys/class/video4linux/video16
dev:81:3
name:bcm2835-isp-stats2
index:3
cat: /sys/class/video4linux/video16/link_name: No such file or directory
link_name:
/sys/class/video4linux/video18
dev:81:12
name:bcm2835-codec-image_fx
index:0
cat: /sys/class/video4linux/video18/link_name: No such file or directory
link_name:
/sys/class/video4linux/video19
dev:81:9
name:rpivid
index:0
cat: /sys/class/video4linux/video19/link_name: No such file or directory
link_name:
/sys/class/video4linux/video20
dev:81:4
name:bcm2835-isp-output0
index:0
cat: /sys/class/video4linux/video20/link_name: No such file or directory
link_name:
/sys/class/video4linux/video21
dev:81:5
name:bcm2835-isp-capture0
index:1
cat: /sys/class/video4linux/video21/link_name: No such file or directory
link_name:
/sys/class/video4linux/video22
dev:81:6
name:bcm2835-isp-capture1
index:2
cat: /sys/class/video4linux/video22/link_name: No such file or directory
link_name:
/sys/class/video4linux/video23
dev:81:7
name:bcm2835-isp-stats2
index:3
cat: /sys/class/video4linux/video23/link_name: No such file or directory
link_name:
/sys/class/video4linux/video31
dev:81:13
name:bcm2835-codec-encode_image
index:0
cat: /sys/class/video4linux/video31/link_name: No such file or directory
link_name:
nisy@raspberrypi:~ $ for i in /sys/class/video4linux/v4l-subdev* ; do echo $i ;echo dev:$(cat $i/dev); echo name:$(cat $i/name);echo index:$(cat $i/index);echo link_name:$(cat $i/link_name);echo; done
/sys/class/video4linux/v4l-subdev0
dev:81:15
name:ov5647 10-0036
index:1
cat: /sys/class/video4linux/v4l-subdev0/link_name: No such file or directory
link_name:
nisy@raspberrypi:~ $ for i in /sys/bus/media/devices/media* ; do echo $i ;echo dev:$(cat $i/dev); echo model:$(cat $i/model);echo; done
/sys/bus/media/devices/media0
dev:238:0
model:bcm2835-isp
/sys/bus/media/devices/media1
dev:238:1
model:unicam
/sys/bus/media/devices/media2
dev:238:2
model:bcm2835-isp
/sys/bus/media/devices/media3
dev:238:3
model:rpivid
/sys/bus/media/devices/media4
dev:238:4
model:bcm2835-codec
nisy@raspberrypi:~ $ ls -al /dev/video*
crw-rw----+ 1 root video 81, 14 Mar 17 20:29 /dev/video0
crw-rw----+ 1 root video 81, 4 Mar 17 20:29 /dev/video10
crw-rw----+ 1 root video 81, 5 Mar 17 20:29 /dev/video11
crw-rw----+ 1 root video 81, 6 Mar 17 20:29 /dev/video12
crw-rw----+ 1 root video 81, 1 Mar 17 20:29 /dev/video13
crw-rw----+ 1 root video 81, 2 Mar 17 20:29 /dev/video14
crw-rw----+ 1 root video 81, 3 Mar 17 20:29 /dev/video15
crw-rw----+ 1 root video 81, 7 Mar 17 20:29 /dev/video16
crw-rw----+ 1 root video 81, 10 Mar 17 20:29 /dev/video18
crw-rw----+ 1 root video 81, 0 Mar 17 20:29 /dev/video19
crw-rw----+ 1 root video 81, 8 Mar 17 20:29 /dev/video20
crw-rw----+ 1 root video 81, 9 Mar 17 20:29 /dev/video21
crw-rw----+ 1 root video 81, 11 Mar 17 20:29 /dev/video22
crw-rw----+ 1 root video 81, 12 Mar 17 20:29 /dev/video23
crw-rw----+ 1 root video 81, 13 Mar 17 20:29 /dev/video31
v4l2-ctl 命令(Raspbian GNU/Linux 11 bullseye)
nisy@raspberrypi:~ $ v4l2-ctl --list-devices
bcm2835-codec-decode (platform:bcm2835-codec):
/dev/video10
/dev/video11
/dev/video12
/dev/video18
/dev/video31
/dev/media4
bcm2835-isp (platform:bcm2835-isp):
/dev/video13
/dev/video14
/dev/video15
/dev/video16
/dev/video20
/dev/video21
/dev/video22
/dev/video23
/dev/media0
/dev/media2
unicam (platform:fe801000.csi):
/dev/video0
/dev/media1
rpivid (platform:rpivid):
/dev/video19
/dev/media3
nisy@raspberrypi:~ $ v4l2-ctl -d /dev/video0 -D
Driver Info:
Driver name : unicam
Card type : unicam
Bus info : platform:fe801000.csi
Driver version : 6.1.21
Capabilities : 0xa5a00001
Video Capture
Metadata Capture
Read/Write
Streaming
Extended Pix Format
Device Capabilities
Device Caps : 0x25200001
Video Capture
Read/Write
Streaming
Extended Pix Format
Media Driver Info:
Driver name : unicam
Model : unicam
Serial :
Bus info : platform:fe801000.csi
Media version : 6.1.21
Hardware revision: 0x00000000 (0)
Driver version : 6.1.21
Interface Info:
ID : 0x03000005
Type : V4L Video
Entity Info:
ID : 0x00000003 (3)
Name : unicam-image
Function : V4L2 I/O
Flags : default
Pad 0x01000004 : 0: Sink
Link 0x02000007: from remote pad 0x1000002 of entity 'ov5647 10-0036': Data, Enabled, Immutable
nisy@raspberrypi:~ $ v4l2-ctl -d /dev/video10 -D
Driver Info:
Driver name : bcm2835-codec
Card type : bcm2835-codec-decode
Bus info : platform:bcm2835-codec
Driver version : 6.1.21
Capabilities : 0x84204000
Video Memory-to-Memory Multiplanar
Streaming
Extended Pix Format
Device Capabilities
Device Caps : 0x04204000
Video Memory-to-Memory Multiplanar
Streaming
Extended Pix Format
Media Driver Info:
Driver name : bcm2835-codec
Model : bcm2835-codec
Serial : 0000
Bus info : platform:bcm2835-codec
Media version : 6.1.21
Hardware revision: 0x00000001 (1)
Driver version : 6.1.21
Interface Info:
ID : 0x0300000c
Type : V4L Video
Entity Info:
ID : 0x00000001 (1)
Name : bcm2835-codec-decode-source
Function : V4L2 I/O
Pad 0x01000002 : 0: Source
Link 0x02000008: to remote pad 0x1000004 of entity 'bcm2835-codec-decode-proc': Data, Enabled, Immutable
nisy@raspberrypi:~ $ v4l2-ctl -d /dev/video11 -D
Driver Info:
Driver name : bcm2835-codec
Card type : bcm2835-codec-encode
Bus info : platform:bcm2835-codec
Driver version : 6.1.21
Capabilities : 0x84204000
Video Memory-to-Memory Multiplanar
Streaming
Extended Pix Format
Device Capabilities
Device Caps : 0x04204000
Video Memory-to-Memory Multiplanar
Streaming
Extended Pix Format
Media Driver Info:
Driver name : bcm2835-codec
Model : bcm2835-codec
Serial : 0000
Bus info : platform:bcm2835-codec
Media version : 6.1.21
Hardware revision: 0x00000001 (1)
Driver version : 6.1.21
Interface Info:
ID : 0x0300001a
Type : V4L Video
Entity Info:
ID : 0x0000000f (15)
Name : bcm2835-codec-encode-source
Function : V4L2 I/O
Pad 0x01000010 : 0: Source
Link 0x02000016: to remote pad 0x1000012 of entity 'bcm2835-codec-encode-proc': Data, Enabled, Immutable
nisy@raspberrypi:~ $ v4l2-ctl -d /dev/video12 -D
Driver Info:
Driver name : bcm2835-codec
Card type : bcm2835-codec-isp
Bus info : platform:bcm2835-codec
Driver version : 6.1.21
Capabilities : 0x84204000
Video Memory-to-Memory Multiplanar
Streaming
Extended Pix Format
Device Capabilities
Device Caps : 0x04204000
Video Memory-to-Memory Multiplanar
Streaming
Extended Pix Format
Media Driver Info:
Driver name : bcm2835-codec
Model : bcm2835-codec
Serial : 0000
Bus info : platform:bcm2835-codec
Media version : 6.1.21
Hardware revision: 0x00000001 (1)
Driver version : 6.1.21
Interface Info:
ID : 0x03000028
Type : V4L Video
Entity Info:
ID : 0x0000001d (29)
Name : bcm2835-codec-isp-source
Function : V4L2 I/O
Pad 0x0100001e : 0: Source
Link 0x02000024: to remote pad 0x1000020 of entity 'bcm2835-codec-isp-proc': Data, Enabled, Immutable
nisy@raspberrypi:~ $ v4l2-ctl -d /dev/video13 -D
Driver Info:
Driver name : bcm2835-isp
Card type : bcm2835-isp
Bus info : platform:bcm2835-isp
Driver version : 6.1.21
Capabilities : 0x84200002
Video Output
Streaming
Extended Pix Format
Device Capabilities
Device Caps : 0x04200002
Video Output
Streaming
Extended Pix Format
Media Driver Info:
Driver name : bcm2835-isp
Model : bcm2835-isp
Serial :
Bus info : platform:bcm2835-isp
Media version : 6.1.21
Hardware revision: 0x00000000 (0)
Driver version : 6.1.21
FAIL: could not find device 81:0 in topology
nisy@raspberrypi:~ $ v4l2-ctl -d /dev/video14 -D
Driver Info:
Driver name : bcm2835-isp
Card type : bcm2835-isp
Bus info : platform:bcm2835-isp
Driver version : 6.1.21
Capabilities : 0x84200001
Video Capture
Streaming
Extended Pix Format
Device Capabilities
Device Caps : 0x04200001
Video Capture
Streaming
Extended Pix Format
Media Driver Info:
Driver name : bcm2835-isp
Model : bcm2835-isp
Serial :
Bus info : platform:bcm2835-isp
Media version : 6.1.21
Hardware revision: 0x00000000 (0)
Driver version : 6.1.21
FAIL: could not find device 81:1 in topology
nisy@raspberrypi:~ $ v4l2-ctl -d /dev/video15 -D
Driver Info:
Driver name : bcm2835-isp
Card type : bcm2835-isp
Bus info : platform:bcm2835-isp
Driver version : 6.1.21
Capabilities : 0x84200001
Video Capture
Streaming
Extended Pix Format
Device Capabilities
Device Caps : 0x04200001
Video Capture
Streaming
Extended Pix Format
Media Driver Info:
Driver name : bcm2835-isp
Model : bcm2835-isp
Serial :
Bus info : platform:bcm2835-isp
Media version : 6.1.21
Hardware revision: 0x00000000 (0)
Driver version : 6.1.21
FAIL: could not find device 81:2 in topology
nisy@raspberrypi:~ $ v4l2-ctl -d /dev/video16 -D
Driver Info:
Driver name : bcm2835-isp
Card type : bcm2835-isp
Bus info : platform:bcm2835-isp
Driver version : 6.1.21
Capabilities : 0x84a00000
Metadata Capture
Streaming
Extended Pix Format
Device Capabilities
Device Caps : 0x04a00000
Metadata Capture
Streaming
Extended Pix Format
Media Driver Info:
Driver name : bcm2835-isp
Model : bcm2835-isp
Serial :
Bus info : platform:bcm2835-isp
Media version : 6.1.21
Hardware revision: 0x00000000 (0)
Driver version : 6.1.21
FAIL: could not find device 81:3 in topology
nisy@raspberrypi:~ $ v4l2-ctl -d /dev/video18 -D
Driver Info:
Driver name : bcm2835-codec
Card type : bcm2835-codec-image_fx
Bus info : platform:bcm2835-codec
Driver version : 6.1.21
Capabilities : 0x84204000
Video Memory-to-Memory Multiplanar
Streaming
Extended Pix Format
Device Capabilities
Device Caps : 0x04204000
Video Memory-to-Memory Multiplanar
Streaming
Extended Pix Format
Media Driver Info:
Driver name : bcm2835-codec
Model : bcm2835-codec
Serial : 0000
Bus info : platform:bcm2835-codec
Media version : 6.1.21
Hardware revision: 0x00000001 (1)
Driver version : 6.1.21
Interface Info:
ID : 0x03000036
Type : V4L Video
Entity Info:
ID : 0x0000002b (43)
Name : bcm2835-codec-image_fx-source
Function : V4L2 I/O
Pad 0x0100002c : 0: Source
Link 0x02000032: to remote pad 0x100002e of entity 'bcm2835-codec-image_fx-proc': Data, Enabled, Immutable
nisy@raspberrypi:~ $ v4l2-ctl -d /dev/video19 -D
Driver Info:
Driver name : rpivid
Card type : rpivid
Bus info : platform:rpivid
Driver version : 6.1.21
Capabilities : 0x84204000
Video Memory-to-Memory Multiplanar
Streaming
Extended Pix Format
Device Capabilities
Device Caps : 0x04204000
Video Memory-to-Memory Multiplanar
Streaming
Extended Pix Format
Media Driver Info:
Driver name : rpivid
Model : rpivid
Serial :
Bus info : platform:rpivid
Media version : 6.1.21
Hardware revision: 0x00000000 (0)
Driver version : 6.1.21
Interface Info:
ID : 0x0300000c
Type : V4L Video
Entity Info:
ID : 0x00000001 (1)
Name : rpivid-source
Function : V4L2 I/O
Pad 0x01000002 : 0: Source
Link 0x02000008: to remote pad 0x1000004 of entity 'rpivid-proc': Data, Enabled, Immutable
nisy@raspberrypi:~ $ v4l2-ctl -d /dev/video20 -D
Driver Info:
Driver name : bcm2835-isp
Card type : bcm2835-isp
Bus info : platform:bcm2835-isp
Driver version : 6.1.21
Capabilities : 0x84200002
Video Output
Streaming
Extended Pix Format
Device Capabilities
Device Caps : 0x04200002
Video Output
Streaming
Extended Pix Format
Media Driver Info:
Driver name : bcm2835-isp
Model : bcm2835-isp
Serial :
Bus info : platform:bcm2835-isp
Media version : 6.1.21
Hardware revision: 0x00000000 (0)
Driver version : 6.1.21
Interface Info:
ID : 0x03000008
Type : V4L Video
Entity Info:
ID : 0x00000006 (6)
Name : bcm2835-isp0-output0
Function : V4L2 I/O
Pad 0x01000007 : 0: Source
Link 0x0200000a: to remote pad 0x1000002 of entity 'bcm2835_isp0': Data, Enabled, Immutable
nisy@raspberrypi:~ $ v4l2-ctl -d /dev/video21 -D
Driver Info:
Driver name : bcm2835-isp
Card type : bcm2835-isp
Bus info : platform:bcm2835-isp
Driver version : 6.1.21
Capabilities : 0x84200001
Video Capture
Streaming
Extended Pix Format
Device Capabilities
Device Caps : 0x04200001
Video Capture
Streaming
Extended Pix Format
Media Driver Info:
Driver name : bcm2835-isp
Model : bcm2835-isp
Serial :
Bus info : platform:bcm2835-isp
Media version : 6.1.21
Hardware revision: 0x00000000 (0)
Driver version : 6.1.21
Interface Info:
ID : 0x0300000e
Type : V4L Video
Entity Info:
ID : 0x0000000c (12)
Name : bcm2835-isp0-capture1
Function : V4L2 I/O
Pad 0x0100000d : 0: Sink
Link 0x02000010: from remote pad 0x1000003 of entity 'bcm2835_isp0': Data, Enabled, Immutable
nisy@raspberrypi:~ $ v4l2-ctl -d /dev/video22 -D
Driver Info:
Driver name : bcm2835-isp
Card type : bcm2835-isp
Bus info : platform:bcm2835-isp
Driver version : 6.1.21
Capabilities : 0x84200001
Video Capture
Streaming
Extended Pix Format
Device Capabilities
Device Caps : 0x04200001
Video Capture
Streaming
Extended Pix Format
Media Driver Info:
Driver name : bcm2835-isp
Model : bcm2835-isp
Serial :
Bus info : platform:bcm2835-isp
Media version : 6.1.21
Hardware revision: 0x00000000 (0)
Driver version : 6.1.21
Interface Info:
ID : 0x03000014
Type : V4L Video
Entity Info:
ID : 0x00000012 (18)
Name : bcm2835-isp0-capture2
Function : V4L2 I/O
Pad 0x01000013 : 0: Sink
Link 0x02000016: from remote pad 0x1000004 of entity 'bcm2835_isp0': Data, Enabled, Immutable
nisy@raspberrypi:~ $ v4l2-ctl -d /dev/video23 -D
Driver Info:
Driver name : bcm2835-isp
Card type : bcm2835-isp
Bus info : platform:bcm2835-isp
Driver version : 6.1.21
Capabilities : 0x84a00000
Metadata Capture
Streaming
Extended Pix Format
Device Capabilities
Device Caps : 0x04a00000
Metadata Capture
Streaming
Extended Pix Format
Media Driver Info:
Driver name : bcm2835-isp
Model : bcm2835-isp
Serial :
Bus info : platform:bcm2835-isp
Media version : 6.1.21
Hardware revision: 0x00000000 (0)
Driver version : 6.1.21
Interface Info:
ID : 0x0300001a
Type : V4L Video
Entity Info:
ID : 0x00000018 (24)
Name : bcm2835-isp0-capture3
Function : V4L2 I/O
Pad 0x01000019 : 0: Sink
Link 0x0200001c: from remote pad 0x1000005 of entity 'bcm2835_isp0': Data, Enabled, Immutable
nisy@raspberrypi:~ $ v4l2-ctl -d /dev/video31 -D
Driver Info:
Driver name : bcm2835-codec
Card type : bcm2835-codec-encode_image
Bus info : platform:bcm2835-codec
Driver version : 6.1.21
Capabilities : 0x84204000
Video Memory-to-Memory Multiplanar
Streaming
Extended Pix Format
Device Capabilities
Device Caps : 0x04204000
Video Memory-to-Memory Multiplanar
Streaming
Extended Pix Format
Media Driver Info:
Driver name : bcm2835-codec
Model : bcm2835-codec
Serial : 0000
Bus info : platform:bcm2835-codec
Media version : 6.1.21
Hardware revision: 0x00000001 (1)
Driver version : 6.1.21
Interface Info:
ID : 0x03000044
Type : V4L Video
Entity Info:
ID : 0x00000039 (57)
Name : bcm2835-codec-encode_image-source
Function : V4L2 I/O
Pad 0x0100003a : 0: Source
Link 0x02000040: to remote pad 0x100003c of entity 'bcm2835-codec-encode_image-proc': Data, Enabled, Immutable
