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qmk_sweep_skeletyl/keyboards/jj4x4/tools/README.md
sprayed 7df9e584fa [Keyboard] Add support for jj4x4 numpad/macropad by Kprepublic (#5016) 
* added keyboard jj4x4, a shorter version of the jj40

* removed useless file

* edited jj4x4 readme.md

* optimized array size in jj4x4 config.h, removed reference to jj40 layouts from rules.mk

* removed custom matrix for this ps2avrgb board, refactored column and row pins
2019-02-05 10:01:35 -08:00

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JJ40 Tools

usb_detach.c

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. This program can force Linux to give up a device, so that the programming script can reset it.

To compile:

gcc usb_detach.c -o usb_detach

To run:

  1. Use lsusb to discover the Bus and Device numbers for your keyboard.
  2. Run the program: sudo ./usb_detach /dev/bus/usb/<BUS>/<DEVICE>.
  3. Build and program the firmware as normal.