[linux-dvb] Re : [Patch] saa7146: 'wait_for_debi_done' fixes

Oliver Endriss o.endriss at gmx.de
Wed Oct 10 19:02:46 CEST 2007


manu wrote:
> On 10/09/2007 06:15:14 PM, Oliver Endriss wrote:
> > @all users of saa7146-based cards
> > 
> > (drivers: dvb-ttpci, budget, budget-ci, budget-av)
> > 
> > Please test whether the attached patch has any negative effects.
> > 
> > Two fixes for the 'saa7146_wait_for_debi_done' code:
> > (a) Timeout did not work when the routine was called with interrupts
> >     disabled.
> > (b) Reduce PCI I/O load caused by saa7146_wait_for_debi_done.
> >     Seems to be very important on fast machines!
> > 
> > Based on a patch posted by e9hack at vdr-portal.
> > 
> > If nobody complains I will commit this patch next week.
> 
> Well sorry it seems to create an oops on my box. Just to make sure  
> though: it is the first time I compile and load modules from mercurial  
> and so could it just be a compatibility problem with my 2.6.20-16  
> Ubuntu Feisty kernel?

Please make sure that you do not mix v4l/dvb modules from the original
kernel and the HG driver, or you will see all kinds of crashes.

First try the HG driver without my patch. If it works, apply the patch
and try again.

CU
Oliver

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