IIDC camera's and the juju firewirestack

[Hans de Goede]

Jarod Wilson wrote:
> Jarod Wilson wrote:
>> Jarod Wilson wrote:
>>> Hans de Goede wrote:
>>>> In the thread I started about Fedora perhaps being to cutting edge, it
>>>> was said that I shouldn't complain as there is only one problem left
>>>> with the juju stack which is a bug with via vt6306 cards in OHCI 1.0 cards.
>>> Oh, there's definitely more than one problem left... :)
>>>> Further analysis of the problem has learned that this is not true, I'm
>>>> using a via vt6306 card in OHCI 1.1 mode, which allegedly should work fine.
>>> The particular bug is actually related to vt6306 and vt6307 cards in OHCI 1.0
>>> mode doing dv capture. iidc is much less tested. I already know where at least
>>> a few of the iidc-related OHCI 1.0 bugs are, but they shouldn't be impacting
>>> you... I've also got an idea or two on what's up with dv capture, just need to
>>> get the spare cycles to test (which could happen shortly, just finished a
>>> major piece of lirc...)
>>>> However most documents talk about using the juju stack with either
>>>> harddisks or DV for homevideo camera's. However I'm trying to use an
>>>> industrial cam which used the IIDC protocol, and support in the new juju
>>>> stack (kernel + userspace) for the IIDC protocol isn't very good.
>>> I believe David Moore's patch in linux1394-2.6.git[*] should help, and it
>>> looks like that also needs to be ported over to the OHCI 1.0 code paths...
>> Nope, looks like he's already done that too. As I said in another thread, I'm
>> going to try to start tracking the linux1394 git tree in rawhide, and
>> selectively pull back patches into released kernels. David's done a lot of
>> excellent work of late while I was busy not paying attention, due to the
>> holidays and other misc stuff (lirc, ia64 xen, ecryptfs, ext4...)
> 
> After a bit of positive testing, I committed a linux1394 git patch plus
> David's dynamic buffer alloc patch, which is about to be in linux1394 git, to
> the rawhide kernel. We've now got working iidc streaming on all OHCI 1.0 and
> 1.1 cards, so far as I know. I'll see about back-porting these bits to the F7
> and F8 kernels as well.
> 
> Would definitely like to hear what *doesn't* work now, short of dv capture
> with Via VT630x OHCI 1.0 cards, which is known broken and under investigation.
> 

Excellent keep up to good work!

Regards,

Hans