Re: staging driver s626 clashes with philips SAA7146 media/dvb based cards

[Herton Ronaldo Krzesinski]

Em Quarta-feira 17 Junho 2009, às 09:26:00, Ian Abbott escreveu:
> Herton Ronaldo Krzesinski wrote:
> > Em Terça-feira 16 Junho 2009, às 17:51:21, Greg KH escreveu:
> >> On Tue, Jun 16, 2009 at 05:01:44PM -0300, Herton Ronaldo Krzesinski wrote:
> >>> Hi,
> >>>
> >>> The s626 (comedi) driver in staging conflicts with philips SAA7146
> >>> media/dvb based cards, because it claims the same vendor:device pci id
> >>> for all subdevice/subvendor ids. What happens is that for people that
> >>> have a philips SAA7146 based card, s626 if available gets loaded by udev
> >>> and makes system freeze (https://qa.mandriva.com/show_bug.cgi?id=51445).
> >> So a PCI device that does different things has the same device ids?
> >> ick, stupid vendors...
> >>
> >>> Looks like s626 shouldn't claim all 1131:7146 devices, either by
> >>> specifying specific subdevice/subvendor ids specific to s626 devices or
> >>> doing additional checks in its probe/attach function.
> >> If you can propose the proper sub ids, or the needed checks, please send
> >> a patch.
> > 
> > Can't propose proper sub ids here etc., as I don't know about/don't have s626 
> > device, s626 author is CC'ed here to check this. But I could send a patch to 
> > disable just the build of s626 if acceptable/desired for the moment.
> 
> The Windows driver (<http://www.sensoray.com/downloads/sdk626.zip>) has
> this in the models section of the INF file:
> 
> %sx26.DeviceDesc%=sxdrv.Device,PCI\VEN_1131&DEV_7146&SUBSYS_02726000
> 
> And it looks like the correct device because this the strings section
> contains:
> 
> sx26.DeviceDesc=   "Sensoray Model 626 Analog/Digital I/O"
> 
> Interpreting the above information gives us:
> 
> PCI Vendor ID = 0x1131
> PCI Device ID = 0x7146
> PCI Subvendor ID = 0x6000
> PCI Subdevice ID = 0x0272 (626)
> 
> The Linux SDK for this board
> (<http://www.sensoray.com/downloads/s626-1.0.1.tar.gz> has the same info
> in the s626core.h file.

Ok thanks. So lets limit s626 by its subvendor:subdevice id, patch follows: