Instead of waiting one second after entering bootloader mode, wait for
the device file to reappear. This should make the flashing more
resilient to slight timing difference in the OS.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Default to running dfu-util via sudo as most machines will not have
the user setup with permissions to access the raw usb device.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Add a script to help flash Klipper over USB. This tool can instruct
Klipper to enter into bootloader mode and it can help track changes in
device name during that transition.
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
Kevin O'Connor