Just bought a RPi and installed Stellarmate. My Losmandy is equipped with steppermotors and an EQDrive which makes it EQmod compatible.
If I plugin the usb cable connecting the EQDrive I can see /dev/ttyUSB0 appear (and disappear when I unplug). However when I try to connect either in Ekos or with Indi device manager I get the following message:
[WARNING] Port /dev/ttyUSB0 is already used by another driver or process.
[WARNING] Communication with /dev/ttyUSB0 @ 9600 failed. Starting Auto Search...