全球唯一标识符 (GUID) 是一个字母数字标识符，用于指示产品的唯一性安装。在许多流行软件应用程序（例如 Web 浏览器和媒体播放器）中，都使用 GUID。
GUID 的格式为“xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx”，其中每个 x 是 0-9 或 a-f 范围内的一个十六进制的数字。例如：6F9619FF-8B86-D011-B42D-00C04FC964FF 即为有效的 GUID 值。
在计算机领域有很多东西需要不重复的唯一标识的东西，例如设备的类型，类，接口标识，目录名等等。这是个天文数字，我记得是有工具能自动生成这个GUID码的，反正不同地点，不同时间，生成相同的GUID的可能性很小很小很小，小到什么程度，没查过，基本上可以认为是不可能生成相同的GUID值的。
BOOL DeviceIoControl(
HANDLE hDevice, // handle to device of interest
DWORD dwIoControlCode, // control code of operation to perform
LPVOID lpInBuffer, // pointer to buffer to supply input data
DWORD nInBufferSize, // size, in bytes, of input buffer
LPVOID lpOutBuffer, // pointer to buffer to receive output data
DWORD nOutBufferSize, // size, in bytes, of output buffer
LPDWORD lpBytesReturned, // pointer to variable to receive byte count LPOVERLAPPED lpOverlapped // pointer to structure for asynchronous operation
);// 这个函数是对指定的设备驱动发送控制码，导致设备响应来完成指定的操作。
DeviceToControl（）函数是一个通用函数，从微软的解释中我们就可以看到，它对设备的操作是取决于你发什么样的控制码。
- URB_FUNCTION_SELECT_CONFIGURATION
- URB_FUNCTION_SELECT_INTERFACE
- URB_FUNCTION_ABORT_PIPE
- URB_FUNCTION_TAKE_FRAME_LENGTH_CONTROL
- URB_FUNCTION_RELEASE_FRAME_LENGTH_CONTROL
- URB_FUNCTION_GET_FRAME_LENGTH
- URB_FUNCTION_SET_FRAME_LENGTH
- URB_FUNCTION_GET_CURRENT_FRAME_NUMBER
- URB_FUNCTION_CONTROL_TRANSFER
- URB_FUNCTION_BULK_OR_INTERRUPT_TRANSFER
- URB_FUNCTION_ISOCH_TRANSFER
- URB_FUNCTION_GET_DESCRIPTOR_FROM_DEVICE
- URB_FUNCTION_SET_DESCRIPTOR_TO_DEVICE
- URB_FUNCTION_SET_FEATURE_TO_DEVICE
- URB_FUNCTION_SET_FEATURE_TO_INTERFACE
- URB_FUNCTION_SET_FEATURE_TO_ENDPOINT
- URB_FUNCTION_CLEAR_FEATURE_TO_DEVICE
- URB_FUNCTION_CLEAR_FEATURE_TO_INTERFACE
- URB_FUNCTION_CLEAR_FEATURE_TO_ENDPOINT
- URB_FUNCTION_GET_STATUS_FROM_DEVICE
- URB_FUNCTION_GET_STATUS_FROM_INTERFACE
- URB_FUNCTION_GET_STATUS_FROM_ENDPOINT
- URB_FUNCTION_VENDOR_DEVICE
- URB_FUNCTION_VENDOR_INTERFACE
- URB_FUNCTION_VENDOR_ENDPOINT
- URB_FUNCTION_CLASS_DEVICE
- URB_FUNCTION_CLASS_INTERFACE
- URB_FUNCTION_CLASS_ENDPOINT
- URB_FUNCTION_SYNC_RESET_PIPE_AND_CLEAR_STALL
- URB_FUNCTION_CLASS_OTHER
- URB_FUNCTION_VENDOR_OTHER
- URB_FUNCTION_GET_STATUS_FROM_OTHER
- URB_FUNCTION_CLEAR_FEATURE_TO_OTHER
- URB_FUNCTION_SET_FEATURE_TO_OTHER
- URB_FUNCTION_GET_DESCRIPTOR_FROM_ENDPOINT
- URB_FUNCTION_SET_DESCRIPTOR_TO_ENDPOINT
- URB_FUNCTION_GET_CONFIGURATION
- URB_FUNCTION_GET_INTERFACE
- URB_FUNCTION_GET_DESCRIPTOR_FROM_INTERFACE
- URB_FUNCTION_SET_DESCRIPTOR_TO_INTERFACE
- URB_FUNCTION_GET_MS_FEATURE_DESCRIPTOR
- URB_FUNCTION_SYNC_RESET_PIPE
- URB_FUNCTION_SYNC_CLEAR_STALL
- Capture almost all types of Kernel-Mode I/O Requests.
- IOCTL_INTERNAL_USB_GET_PORT_STATUS
- IOCTL_INTERNAL_USB_ENABLE_PORT
- IOCTL_INTERNAL_USB_RESET_PORT
- IOCTL_INTERNAL_USB_CYCLE_PORT
- IOCTL_INTERNAL_USB_GET_DEVICE_HANDLE
- IOCTL_INTERNAL_USB_GET_ROOTHUB_PDO
- IOCTL_INTERNAL_USB_GET_HUB_COUNT
- IOCTL_INTERNAL_USB_GET_HUB_NAME
- IOCTL_INTERNAL_USB_GET_CONTROLLER_NAME
- IOCTL_INTERNAL_USB_GET_BUS_INFO
- IOCTL_INTERNAL_USB_SUBMIT_IDLE_NOTIFICATION
- Capture almost all types of User-Mode I/O Requests to USB Host Controller and USB Hub.
- IOCTL_USB_GET_ROOT_HUB_NAME
- IOCTL_GET_HCD_DRIVERKEY_NAME
- IOCTL_USB_HCD_DISABLE_PORT
- IOCTL_USB_HCD_ENABLE_PORT
- IOCTL_USB_HCD_GET_STATS_1
- IOCTL_USB_HCD_GET_STATS_2
- IOCTL_USB_DIAGNOSTIC_MODE_ON
- IOCTL_USB_DIAGNOSTIC_MODE_OFF
- IOCTL_USB_DIAG_IGNORE_HUBS_ON
- IOCTL_USB_DIAG_IGNORE_HUBS_OFF
- IOCTL_USB_GET_NODE_INFORMATION
- IOCTL_USB_GET_NODE_CONNECTION_INFORMATION
- IOCTL_USB_GET_NODE_CONNECTION_INFORMATION_EX
- IOCTL_USB_GET_NODE_CONNECTION_ATTRIBUTES
- IOCTL_USB_GET_NODE_CONNECTION_NAME
- IOCTL_USB_GET_NODE_CONNECTION_DRIVERKEY_NAME
- IOCTL_USB_GET_DESCRIPTOR_FROM_NODE_CONNECTION
- IOCTL_USB_GET_HUB_CAPABILITIES
- IOCTL_USB_HUB_CYCLE_PORT
- Capture state transition PnP IRPs.
- IRP_MN_START_DEVICE
- IRP_MN_QUERY_REMOVE_DEVICE
- IRP_MN_REMOVE_DEVICE
- IRP_MN_CANCEL_REMOVE_DEVICE
- IRP_MN_STOP_DEVICE
- IRP_MN_QUERY_STOP_DEVICE
- IRP_MN_CANCEL_STOP_DEVICE
- IRP_MN_SURPRISE_REMOVAL
