pl2303 Serial<=>USB adapter not working - minicom reports offline

English Hardware
1

Hi all,

I am using a Prolific pl2303 USB<=>Serial adapter.

dmesg reports everything seems ok when I plug it in (see below) but when I open the ttyUSB0 port in minicom, it is always offline and nothing works. Also, minicom reports:

Welcome to minicom 2.3 OPTIONS: I18n Compiled on Dec 3 2008, 05:10:15. Port /dev/tty8

If I plug the adapter into a different machine (Windows) everything works fine.

The serial port is setup correctly (9600-8-N-1)

What can I do to get this working?

Many thanks for your time.

usb 5-2: new full speed USB device using uhci_hcd and address 3
usb 5-2: configuration #1 chosen from 1 choice
pl2303 5-2:1.0: pl2303 converter detected
usb 5-2: pl2303 converter now attached to ttyUSB0
usb 5-2: New USB device found, idVendor=067b, idProduct=2303
usb 5-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
usb 5-2: Product: USB-Serial Controller
usb 5-2: Manufacturer: Prolific Technology Inc.

2

Well I fixed this. I just had to edit the serial setup in minicom from /dev/tty8 to /dev/ttyUSB0. Seems obvious now but since I launched minicom with “minicom ttyUSB0” I assumed this had been mapped to tty8.