Re: flexfax: Message clarification

[Christoph Scheeder <christoph.scheeder@scheeder.de>]

Hi,

David Woolley wrote:
> 
> > i tried changing all parameters including handshake, but nothing
> > changed. my last try was to put the speed up to 57600 and now
> > all received faxes are fine. no bad lines anymore....
> 
> If you are getting paradoxical speed dependence like this and
> you are prepared to take the risk of running with a patched kernel
> and are using the 2.0.36 linux kernel, I am currently testing a version
> of serial.c which handles interrupts in the way described in the
> National Semiconductor design notes, rather than the way used in
> the current code.  I believe the current code causes corruption when
> transmit interrupts are enabled and disabled.
> 
> If you or anyone is interested in testing alpha level driver code
> in this area, please let me know.  At the time of writing, I only
> support hardware flow control fully and it has only been tested on
> PPP, but I might complete software flow control support soon.  I also
> haven't fully implemented shared interrupts (dumb multi-port cards).

I would give your code a try, but the faxes comming in over that machine
mostly contain relevant data for our buisnes, and we can not accept the 
risk of losing some of them...sorry. And the kernel running on that 
machine is 2.2.9, because it is faster in the isdn- and Network-Code 
then the 2.0.x kernels.

And with my local faxserver, i only reveive one or two faxes a month. 
And with my sportster i dont have any problems with the actual code....
so there would be nothing to test.

have a nice day.
Christoph