Messages in this thread | | | Subject | Re: Stradis driver conflicts with all other SAA7146 drivers | From | Christer Weinigel <> | Date | 28 May 2006 18:02:44 +0200 |
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Jiri Slaby <jirislaby@gmail.com> writes:
> Christer Weinigel napsal(a): > > Hi, > > > > [Nathan Laredo is the maintainer of the stradis driver but Jiri Slaby > > submitted the PCI probing change that went into 2.6.16 so I'm Cc-ing > > him too. I'm not a member of the video4linux mailing list so please > > Cc me on any responses.] > > > > The stradis driver in the 2.6.16 kernel only looks at the SAA7146 > > vendor and product ID and binds to any SAA7146 based device even if it > > is not a stradis card. This stops all other SAA7146 drivers from > > working, for example my WinTV Nova-T card using the budget-ci driver > > doesn't work any longer. A lot of other people have also been bitten > > by this.
> The only difference is in order of searching for devices. Stradis now gets > control before your "real" driver. Kick stradis from your config or blacklist > it. Or, why you ever load module, you don't want to use? > There is no change in searching devices, it didn't check for subvendors before > not even now. If Nathan knows, there are some subvendor/subdevices ids, which we > should compare to, then yes, we can change the behaviour, otherwise, I am > afraid, we can't. It's vendors' problem, that they don't use this pci registers > (and it's evil) -- i think, that stradis cards have that two zeroed.
I'm running the stock Fedora Core 5 kernels, and for some reason the stradis driver is loaded. I suppose there's some magic in the FC5 hotplug scripts that tries to load all device drivers that claim to support a certain PCI device.
I have blacklisted the stradis driver on my system, which fixes it for me, but it does feels as a workaround for a problem that ought to be fixed in the driver. If the card doesn't have a subvendor/subdevice, is there some way of doing a sanity check on the board to see if it actually is a stradis card and then release the board if it isn't?
If the driver isn't fixed I'll file a bug report on the Fedora bugzilla asking them to blacklist or just not compile that driver.
/Christer
-- "Just how much can I get away with and still go to heaven?"
Freelance consultant specializing in device driver programming for Linux Christer Weinigel <christer@weinigel.se> http://www.weinigel.se - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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