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