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Re: [ts-7000] tsuart7800.ko problems

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Subject: Re: [ts-7000] tsuart7800.ko problems
From: Heinrich du Toit <>
Date: Fri, 29 Feb 2008 17:09:52 +0200
OK some more information...

The segfaults doesn' happen always.
I'm not sure when it happens though.
But if lsmod doesn't break it seems apt-get and mount breaks
Bottom line: something somewhere will break :(

I've now done some tests with /dev/ttts5 and a scope.
When I program my own code it works fine :)

When I install tsuart1 and tsuart7800...
I'm not sure .
echo "bla bla" > /dev/ttts5
does produce output. But the baud rate is horribly wrong.

I've installed the "setserial" program. And according to it's feedback 
the baudrate is set.
But it doesn't make a difference on the output.

What I've also done is connect my serial program to COM3 port.
Since ttts4 should be the normal COM on that.
Well I see output on the PC.
But it is garbage regardless of what I do.
I've tried different settings with gtkterm as of baud rate and flow 
control ect.
No help
 From the scope output it seems the baud rate should be around 10000 
more or less.
Well setting that in gtkterm doesn't help. Maybe I'm doing something 
else wrong.

And I think I'm going to smother the whole board with silicon to stop 
myself accidently shorting random things :)

Has this file: 
ftp://ftp.embeddedarm.com/ts-arm-sbc/ts-7800-linux/sources/linux-2.6.21-ts-src-jan182008.tar.gz
Got the newest source code for that driver?

Anybody else having problems with this driver?
Or is it just me?




Heinrich du Toit wrote:
>
> Hi
>
> I've downloaded the newest version dated 21Jan.
>
> First the drivers didn't work.
> Then I restarted.
>
> The drivers now load and creates all the /dev/tt(t/8)s? devices
>
> but from then on if I try to run lsmod I get a segfault :(
> even if I remove tsuart7800 again with rmmod the segfault persists
>
> It also seems to break apt-get from working (after piping some stuff to
> these devices)
>
> Also once I started trying to echo things through these new devices my
> terminal on ttyS0 stopped working also.
> It seems that the device didn't want to shutdown also.. but that was
> difficult to check because I couldn't see any output any more.
>
> How can I debug this further to try and find the actual problem?
>
> -Heinrich
>
>  



 
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