aboutsummaryrefslogtreecommitdiffstats
path: root/keyboards/jj4x4/tools/usb_detach.c
diff options
context:
space:
mode:
Diffstat (limited to 'keyboards/jj4x4/tools/usb_detach.c')
-rw-r--r--keyboards/jj4x4/tools/usb_detach.c33
1 files changed, 33 insertions, 0 deletions
diff --git a/keyboards/jj4x4/tools/usb_detach.c b/keyboards/jj4x4/tools/usb_detach.c
new file mode 100644
index 000000000..c21e47a7a
--- /dev/null
+++ b/keyboards/jj4x4/tools/usb_detach.c
@@ -0,0 +1,33 @@
+/* Found at https://www.linuxquestions.org/questions/linux-hardware-18/how-to-unclaim-usb-device-558138/#post3406986 */
+#include <stdio.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");
+ }
+} \ No newline at end of file