On Sat, May 21, 2011 at 3:34 PM, Roman Gaufman <hackeron@xxxxxxxxx> wrote: > I have a PCI-E capture card with two connexant cx25821 chips. > 04:00.0 Multimedia video controller: Conexant Systems, Inc. Device 8210 > 05:00.0 Multimedia video controller: Conexant Systems, Inc. Device 8210 > > > There is a staging driver in latest linux kernels. Looks like it uses v4l2 > api. > I tried to use precompiled module cx25821 provided with Ubuntu 10.10 beta > (2.6.35-19-generic #28-Ubuntu SMP Sun Aug 29 06:36:51 UTC 2010 i686 > GNU/Linux). Just because there is a driver for whatever chipset your board happens to have, doesn't mean that your board is actually supported. The definition of a product is more than just the chips that are on it. > # modprobe cx25821 You should *never* have to manually modprobe. If you ran modprobe, then that means the driver does not know about the PCI ID for your board. > The module looks like to be loaded successfully. <snip> > And now I can not see any /dev/video0-7 devices to get input from the card. > I'l greatly appreciate if someone could tell me about additional actions to > make this work. The /dev/video devices will not be created if the driver did not associate with the card. Basically what you did is the equivalent of modprobing any driver in the system regardless of whether or not it has anything to do with the actual hardware you happen to have. Somebody would likely have to do work to modify the driver to support your board. This would mean a driver developer who actually cared enough to do the work would have to have one of the boards, which doesn't appear to be the case at this point. Hope that helps (or at least it makes clear that this board will not just start to magically work just because you have a card which contains the chips involved). Devin -- Devin J. Heitmueller - Kernel Labs http://www.kernellabs.com -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
