34 lines
1.2 KiB
C
34 lines
1.2 KiB
C
/* Found at https://www.linuxquestions.org/questions/linux-hardware-18/how-to-unclaim-usb-device-558138/#post3406986 */
|
|
#include <stdio.h>
|
|
#include <sys/ioctl.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <fcntl.h>
|
|
#include <linux/ioctl.h>
|
|
#include <linux/usbdevice_fs.h>
|
|
|
|
int main(int argc, char**argv)
|
|
{
|
|
struct usbdevfs_ioctl command;
|
|
int ret;
|
|
int fd;
|
|
int i;
|
|
if (argc>1) {
|
|
fd = open(argv[1],O_RDWR);
|
|
if (fd<1){
|
|
perror("unable to open file");
|
|
return 1;
|
|
}
|
|
for (i=0;i<255;i++){ // hack: should fetch how many interface there is.
|
|
command.ifno = i;
|
|
command.ioctl_code = USBDEVFS_DISCONNECT;
|
|
command.data = NULL;
|
|
ret = ioctl(fd, USBDEVFS_IOCTL, &command);
|
|
if(ret!=-1)
|
|
printf("un claimed interface %d %d\n",i,ret);
|
|
}
|
|
} else {
|
|
printf ("usage: %s /dev/bus/usb/BUS/DEVICE\n",argv[0]);
|
|
printf("Release all interfaces of this usb device for usage in virtualisation\n");
|
|
}
|
|
} |