I have two RS422 to USB adapters and a USB GPS puck hooked up to a pi 3.
The USB manager only recognizes two devices in auto setup and doesn't give me the option in 'add' to add the third device. If I delete all devices in the USB manager it then shows me three devices that I can add but as soon as I add one device, I am only allowed one more for a total of two devices.
Under the NMEA0183 tab, when I highlight one of the devices and double click to edit, then go to 'port', one of the available ports is listed twice in the drop down selector.
The USB manager only recognizes two devices in auto setup and doesn't give me the option in 'add' to add the third device. If I delete all devices in the USB manager it then shows me three devices that I can add but as soon as I add one device, I am only allowed one more for a total of two devices.
Under the NMEA0183 tab, when I highlight one of the devices and double click to edit, then go to 'port', one of the available ports is listed twice in the drop down selector.