On Mon, Jan 08, 2007 at 05:38:33PM +0200, Gregory Machin wrote:
> Hi
> Please could you help me,
> I have a Mecer USB to RS232 converter that the os detects but does not
> work, the led does not come on and minicom using /dev/ttyUSB0 does
> return any display / input when i plug in into the admin port on my
> router device..
>
> The kernel detects is and /var/log/messages reports
>
> Jan 8 17:30:49 greg kernel: ohci_hcd 0000:00:13.0: wakeup
> Jan 8 17:30:49 greg kernel: usb 1-3: new full speed USB device using
> ohci_hcd and address 4
> Jan 8 17:30:49 greg kernel: usb 1-3: configuration #1 chosen from 1 choice
> Jan 8 17:30:49 greg kernel: pl2303 1-3:1.0: pl2303 converter detected
> Jan 8 17:30:49 greg kernel: usb 1-3: pl2303 converter now attached to ttyUSB0
Try enabling debugging in the driver:
modprobe pl2303 debug=1
and see if data really is going through the device. Odds are you just
don't have the line settings setup properly in minicom (hardware flow
control set?)
thanks,
greg k-h
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