I'm having trouble uploading a modified firmware to my atreus. In normal
use, the atreus appears at:
In bootloader mode it is not visible at all - diffing /dev/ before and
after shows no difference.
make upload USB=/dev/usb/hiddev0
does nothing - it just waits until I cancel
Repeating the make upload command as root I get the following:
.../keyboard/atreus make upload USB=/dev/usb/hiddev0
if [ -f /dev/usb/hiddev0 ] && [ ! -r /dev/usb/hiddev0 ]; then echo
"Warning: no read permission!"; fi; \
while [ ! -r /dev/usb/hiddev0 ]; do sleep 1; done; \
avrdude -p atmega32u4 -c avr109 -U flash:w:atreus.hex -P
avrdude: ser_open(): can't set attributes for device "/dev/usb/hiddev0":
Inappropriate ioctl for device
avrdude done. Thank you.
Makefile:143: recipe for target 'upload' failed
Where should I start debugging?