From 1a6a2a7b75dec3b20311bc6d89923fde3222ba1c Mon Sep 17 00:00:00 2001 From: zvecr Date: Mon, 18 Feb 2019 17:03:44 +0000 Subject: Relocate usb_detach to utils (#5121) * Relocate usb_detach to utils * Relocate usb_detach to utils - fix up files after move --- util/usb_detach/usb_detach.c | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 util/usb_detach/usb_detach.c (limited to 'util/usb_detach/usb_detach.c') diff --git a/util/usb_detach/usb_detach.c b/util/usb_detach/usb_detach.c new file mode 100644 index 000000000..786ab5e67 --- /dev/null +++ b/util/usb_detach/usb_detach.c @@ -0,0 +1,34 @@ +/* Found at https://www.linuxquestions.org/questions/linux-hardware-18/how-to-unclaim-usb-device-558138/#post3406986 */ +#include +#include +#include +#include +#include +#include +#include + +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"); + } +} \ No newline at end of file -- cgit v1.2.3