I hope you can help me.
Thats my error when i dont use root:
avrdude: ser_open(): can't open device "/dev/ttyACM0": Permission denied
Thats my error if i use root:
avrdude: ser_open(): can't set attributes for device "/dev/ttyACM0": Inappropriate ioctl for device ioctl("TIOCMGET"): Bad file descriptor
I added myself into the dialout group but it doesnt work. Additionally this line dont looks normal.
lrwxrwxrwx 1 root root 5 Aug 12 13:43 /dev/ttyACM0 -> loop0
In other topics i looked for their is only one root and then their is dialout.
Hope you guys can help me.
THanks for trying.