On Thursday 14 October 2004 05:02, Onslo wrote:
>Hello list,
>
>I seem to be experiencing problems getting the PL2303 usb to serial
>adapter functioning correctly on my debian box.
>
>The adapter seems to only be able to transfer data in one direction.
>For instance :
>
>minicom ttyS0 <---------Null Modem Cable---------> minicom ttyUSB0
>
>When typing into the "minicom ttyS00" session window you see the
>output in the "minicom ttyUSB0" session window, as expected.

minicom doesn't like me here, but "cutecom" that was announced on 
freshmeat yesterday sure seems to be useable here.  But... I don't 
think that will fix this, just promo-ing what looks to be a better 
comm proggy I found.

>However.....
>
>When typing into the "minicom ttyUSB0" session window you don't see
>any output in the "minicom ttyS0" session window.
>
>This would suggest that the data can only be read from the ttyUSB0
>port.... or have I got that the wrong way round?!? - lol
>
>If I connect the same null modem cable between ttyS0 and ttyS1 and
> use the same minicom port settings (19200 8N1) then the comms is
> perfect.
>
>The adapter itself has been proven to function flawlessly under
> win2k.
>
>Anyway, I have tried a few different kernel versions in order to try
>and resolve the issue, but the problem remains the same with them
> all.
>
>2.2.20 (USB not supported)
>2.4.18 (problem, as described above, apparent)
>2.4.27 (problem, as described above, apparent)
>2.6.7  (problem, as described above, apparent)
>2.6.8  (problem, as described above, apparent)
>
>Looking into it in a bit more detail it would appear that 2.4.18
> uses the pl2303 V0.9 driver, and the later 3 kernel versions use
> the V0.10 driver.
>
>I even went as far as to chmod 777 all the ttyS* and ttyUSB* ports.
>
>Does anyone know of a reason why this is happening ?
>Can anyone recommend a distro that is proven with regards to the use
>of this adapter?
>
>Can anyone help me at all?
>
>
>
>Best regards,
> Onslo                            mailto:[EMAIL PROTECTED]
>
>
>
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-- 
Cheers, Gene
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
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by Gene Heskett are:
Copyright 2004 by Maurice Eugene Heskett, all rights reserved.


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