Relocate usb_detach to utils (#5121)
* Relocate usb_detach to utils * Relocate usb_detach to utils - fix up files after movedaktil_manuform
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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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}
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# JJ40 Tools
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## usb_detach.c
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When trying to flash on Linux, you may encounter a "Resource Unavailable" error. This means that Linux's HID driver has taken exclusive control of the keyboard, and the program script can't flash it.
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This program can force Linux to give up a device, so that the programming script can reset it.
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### To compile:
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```
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gcc usb_detach.c -o usb_detach
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```
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### To run:
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1. Use `lsusb` to discover the Bus and Device numbers for your keyboard.
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2. Run the program: `sudo ./usb_detach /dev/bus/usb/<BUS>/<DEVICE>`.
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3. Build and program the firmware as normal.
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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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}
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# JJ40 Tools
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## usb_detach.c
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When trying to flash on Linux, you may encounter a "Resource Unavailable" error. This means that Linux's HID driver has taken exclusive control of the keyboard, and the program script can't flash it.
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This program can force Linux to give up a device, so that the programming script can reset it.
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### To compile:
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```
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gcc usb_detach.c -o usb_detach
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```
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### To run:
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1. Use `lsusb` to discover the Bus and Device numbers for your keyboard.
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2. Run the program: `sudo ./usb_detach /dev/bus/usb/<BUS>/<DEVICE>`.
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3. Build and program the firmware as normal.
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@ -0,0 +1,18 @@
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# the compiler: gcc for C program, define as g++ for C++
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CC = gcc
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# compiler flags:
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# -g adds debugging information to the executable file
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# -Wall turns on most, but not all, compiler warnings
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CFLAGS = -g -Wall
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# the build target executable:
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TARGET = usb_detach
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all: $(TARGET)
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$(TARGET): $(TARGET).c
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$(CC) $(CFLAGS) -o $(TARGET) $(TARGET).c
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clean:
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$(RM) $(TARGET)
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# JJ40 Tools
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## usb_detach.c
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# usb_detach
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When trying to flash on Linux, you may encounter a "Resource Unavailable" error. This means that Linux's HID driver has taken exclusive control of the keyboard, and the program script can't flash it.
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This program can force Linux to give up a device, so that the programming script can reset it.
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### To compile:
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```
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gcc usb_detach.c -o usb_detach
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## To compile:
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```bash
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make clean && make
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```
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### To run:
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## To run:
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1. Use `lsusb` to discover the Bus and Device numbers for your keyboard.
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2. Run the program: `sudo ./usb_detach /dev/bus/usb/<BUS>/<DEVICE>`.
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3. Build and program the firmware as normal.
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@ -1,5 +1,6 @@
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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/ioctl.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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