// rmmod.c
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include <string.h>
#include <errno.h>
int main(int argc, char *argv[])
{
const char *modname = argv[1];
int ret = -1;
int maxtry = 10;
while (maxtry-- > 0) {
ret = delete_module(modname, O_NONBLOCK | O_EXCL);//sys_delete_module
if (ret < 0 && errno == EAGAIN)
usleep(500000);
else
break;
}
if (ret != 0)
printf("Unable to unload driver module \"%s\": %s\n",
modname, strerror(errno));
}
