I can’t get arduino to flash on Ubuntu.
I have installed 1.8.5 into /usr/local, and downloaded all the firmware, etc.
Running ‘make flash’ fails with
avrdude: ser_open(): can't open device "-b57600": No such file or directory
the keyboard is apparently available on ttyACM0:
[ 1328.524791] usb 4-1: Manufacturer: Keyboardio [ 1328.524793] usb 4-1: SerialNumber: Ckbio01E [ 1328.526948] cdc_acm 4-1:1.0: This device cannot do calls on its own. It is not a modem. [ 1328.526999] cdc_acm 4-1:1.0: ttyACM0: USB ACM device