Currently I have octoprint/octoprint:latest (as of yesterday) running in a docker container. I have the raspberry pi connected over usb cable to the USB B port on my Prusa Mk3S. I know my raspberry pi is connected to the printer and as I ran
dmesg and got the output:
New USB device found, idVendor=2c99, idProduct=0002, bcdDevice= 1.30 usb 1-1.5: New USB device strings: Mfr=1, Product=2, SerialNumber=3 usb 1-1.5: Product: Original Prusa i3 MK3 usb 1-1.5: Manufacturer: Prusa Research (prusa3d.com) cdc_acm 1-1.5:1.0: ttyACM0: USB ACM device
but when I try to connect to it using octoprint, my only options for the serial port is auto. I tried adding
/dev/ttyACM0 to the addition serial ports section but it still won't work. My only option in the serial port drop down menu on the main screen is auto. When I try to connect I get this error:
Serial port list:  Changing monitoring state from "Detecting serial port" to "Error: Failed to autodetect serial port, please set it manually." Failed to autodetect serial port, please set it manually.
Any suggestions would be very helpful. I can't find anything on setting this manually.