> On Mon, 2005-11-21 at 23:00 +0100, Hans Verkuil wrote:
>> > The first drawback can be countered by the fact that ivtv is still an
>> > unofficial driver with a 0.x version number. People using it should
>> > expect some changes every now and then. (So I hope to get this change
>> > accepted before ivtv is included in the main kernel).
>>
>> It won't be before 2.6.17 at the earliest before ivtv is in shape for
>> such a step. And this is very optimistic indeed.
> But it is the working goal right now, even if it is a fairly long term
> goal?
Yes, definitely. The audio/video drivers are already in the 2.6.15 kernel.
There is just so much cleaning up to do. I am also waiting for some new
code to be merged from the Japanese branch. That has to be done first
before I can start the cleanup process.
>> > The second drawback is just an extra motivation for people to update
>> > their kernel, so I wouldn't take it too serious.
>> >
>> > If people have no big objections I will implement a patch that does
>> > these changes and post it here.
>>
>> Sure! Please make a ticket for it and attach the patch
>> (ivtvdriver.org/trac). That way it isn't lost in the noise.
> I assume I make the patch against trunk? or 0.5.0?
Trunk is easiest, I think.
>>
>> >
>> > Regards,
>> >
>> > Sigmund A. Helberg
>> >
>> > P.S the README.devices say the maximum number of cards is 12. We
>> > failed even booting with more than 8, is this because of the pvr350
>> > itself, or is it a problem with the chipset on our box? Someone
>> > mentioned something about lacking interrupt sharing.
>>
>> Interrupt sharing should work fine. Does the boot fail as soon as the
>> ivtv driver is loaded? If it's before that then it has nothing to do
>> with ivtv.
> We managed to go from 5 to 8 cards by modifing the driver, so the
> problem with more than 8 cards is definitly not in the driver.
What modification? The vbi minor numbering?
> I have
> not personally tried this excersice (and will not be able to,
> unfortunatly), but from what I understand it did not even get past POST.
>> And how do you manage to cram more than 8 pvr350 cards into
>> one PC?
> Very simply by using a pc with more than 8 pci slots.
I didn't know they existed. I thought you were using an external PCI box
(don't know the correct name but we have one at work).
>> Note that the ivtv-fb driver is probably buggy when used with
>> more than 1 PVR350 (globals in the driver, haven't gotten around to
>> removing them), so you shouldn't load that one.
> We haven't used it at least, if "modprobe ivtv" will drag it in as well
> it is probably some there, but I don't think it is
No, you have to load it explicitly.
Hans
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