lsusb -t
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/6p, 5000M
|__ Port 4: Dev 6, If 0, Class=Hub, Driver=hub/4p, 5000M
|__ Port 1: Dev 7, If 0, Class=Vendor Specific Class, Driver=, 5000M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/12p, 480M
|__ Port 1: Dev 2, If 0, Class=Vendor Specific Class, Driver=pl2303, 12M
|__ Port 4: Dev 9, If 0, Class=Hub, Driver=hub/4p, 480M
|__ Port 3: Dev 11, If 0, Class=Vendor Specific Class, Driver=, 480M
|__ Port 1: Dev 10, If 0, Class=Vendor Specific Class, Driver=ftdi_sio, 12M
The two attached ZWO cameras connect with no problems, but the driver attempts to connect to /dev/ttyUSB0 and immediately gets a Serial read error: Timeout error, and then trys /dev/ttyUSB1 and hangs. I don't seem to be able to input any other device paths, and the scan ports doesn't produce any alternatives.