I'm playing around with Indi, it looks great but I got into troubles in connecting the mount with EQMod.
Local Mode: AZEQ6 mount > EQDIRECT-USB > Local Ubuntu laptop with indi and Kstars => eqmod connection OK
Client Server Mode: AZEQ6 mount > EQDIRECT-USB > Ubuntu laptop with indi server on network > Ubuntu laptop with kstars and Eko => eqmod connection OK
Client Server Mode with Raspberry 2: AZEQ6 mount > EQDIRECT-USB > Raspberry 2 with indi server on network > Ubuntu laptop with kstars and Eko => eqmod connection <strong>KO</strong>
So the mount and the EQDirect cable are working well.
The logs
On Raspberry with Raspbian image:
$ lsusb
Bus 001 Device 005: ID 0403:6001 Future Technology Devices International, Ltd FT232 Serial (UART) IC
$ dmesg
[1300.522959] usb 1-1.2: Product: USB <-> Serial
[1300.522978] usb 1-1.2: Manufacturer: FTDI
[1300.544566] ftdi_sio 1-1.2:1.0: FTDI USB Serial Device converter detected
[1300.544923] usb 1-1.2: Detected FT232BM
[1300.547406] usb 1-1.2: FTDI USB Serial Device converter now attached to ttyUSB0
From Kstars on client:
2022-07-29T18:17:53 EQMod Mount failed to connect.
Please ensure the device is connected and powered on.
2022-07-29T18:17:51 Connecting INDI devices...
After spending hours to figure out what was going on, I figured out there was a contact failure in the EQDirect cable. So it was a coincidence that it worked only on Unbutu Laptop.