Did you notice that the device is now /dev/ttyUSB0 ?
On Tue, 19 Apr 2011 01:34:37 +0000
Leonardo Ruoso <firstname.lastname@example.org
> I have a computer without the old rs232, it's like a netbook, but it's
> running lenny. I need to plug a termal serial printer to it. usb to
> serial adapter (prolific chip) should be okay, but didn't work. When
> back at home, just plugged the printer to the serial and it worked.
> Plugged through usbserial adapter and nothing happened again. Does
> anyone have any idea?
> dmesg output when disconnecting and connecting back the usb2serial
> cable [ 1689.296172] usb 2-2: USB disconnect, address 2
> [ 1689.296404] pl2303 ttyUSB0: pl2303 converter now disconnected from
> [ 1689.296423] pl2303 2-2:1.0: device disconnected
> [ 1693.224040] usb 2-2: new full speed USB device using uhci_hcd and
> address 3
> [ 1693.387033] usb 2-2: New USB device found, idVendor=067b,
> idProduct=2303 [ 1693.387039] usb 2-2: New USB device strings: Mfr=1,
> Product=2, SerialNumber=0
> [ 1693.387044] usb 2-2: Product: USB 2.0 To COM Device
> [ 1693.387048] usb 2-2: Manufacturer: Prolific Technology Inc.
> [ 1693.390133] pl2303 2-2:1.0: pl2303 converter detected
> [ 1693.402159] usb 2-2: pl2303 converter now attached to ttyUSB0