Relocate usb_detach to utils (#5121)
* Relocate usb_detach to utils * Relocate usb_detach to utils - fix up files after movergb7seg 0.6.295
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1a6a2a7b75
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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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@ -1,16 +1,14 @@ |
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# JJ40 Tools |
# usb_detach |
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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. |
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. |
This program can force Linux to give up a device, so that the programming script can reset it. |
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### To compile: |
## To compile: |
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``` |
```bash |
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gcc usb_detach.c -o usb_detach |
make clean && make |
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``` |
``` |
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### To run: |
## To run: |
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1. Use `lsusb` to discover the Bus and Device numbers for your keyboard. |
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>`. |
2. Run the program: `sudo ./usb_detach /dev/bus/usb/<BUS>/<DEVICE>`. |
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3. Build and program the firmware as normal. |
3. Build and program the firmware as normal. |
@ -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 */ |
/* Found at https://www.linuxquestions.org/questions/linux-hardware-18/how-to-unclaim-usb-device-558138/#post3406986 */ |
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#include <stdio.h> |
#include <stdio.h> |
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#include <sys/ioctl.h> |
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#include <sys/types.h> |
#include <sys/types.h> |
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#include <sys/stat.h> |
#include <sys/stat.h> |
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#include <fcntl.h> |
#include <fcntl.h> |
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