Mailing List Archive: Bisected MSP34xx PVR-250/PVR-350 no audio in 2.6.36

Hans,

Shane Shrybman reported that in the 2.6.36 kernel, after the first
capture on his PVR-250, TV audio from the RF input no longer works.

I verified that RF TV audio never works with a PVR-350.

I bisected the problem to this change to the msp3400 driver:

http://git.linuxtv.org/media_tree.git?a=commit;h=ebc3bba5833e7021336f09767347a52448a60bc5

$ git bisect bad
ebc3bba5833e7021336f09767347a52448a60bc5 is the first bad commit
commit ebc3bba5833e7021336f09767347a52448a60bc5
Author: Hans Verkuil <hverkuil@xs4all.nl>
Date: Mon May 24 10:01:58 2010 -0300

V4L/DVB: msp3400: convert to the new control framework

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

:040000 040000 fabcfdd08fe2835d9a146666c891b274b6546428 2199dcba591213638336d254b3a57d38bd068de4 M drivers

I don't have time to fix it this weekend, but there it is before I
forget.

Regards,
Andy

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On Sunday, October 17, 2010 05:23:01 Andy Walls wrote:
> Hans,
>
> Shane Shrybman reported that in the 2.6.36 kernel, after the first
> capture on his PVR-250, TV audio from the RF input no longer works.
>
> I verified that RF TV audio never works with a PVR-350.
>
> I bisected the problem to this change to the msp3400 driver:
>
> http://git.linuxtv.org/media_tree.git?a=commit;h=ebc3bba5833e7021336f09767347a52448a60bc5
>
>
> $ git bisect bad
> ebc3bba5833e7021336f09767347a52448a60bc5 is the first bad commit
> commit ebc3bba5833e7021336f09767347a52448a60bc5
> Author: Hans Verkuil <hverkuil@xs4all.nl>
> Date: Mon May 24 10:01:58 2010 -0300
>
> V4L/DVB: msp3400: convert to the new control framework
>
> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
>
> :040000 040000 fabcfdd08fe2835d9a146666c891b274b6546428 2199dcba591213638336d254b3a57d38bd068de4 M drivers
>
>
> I don't have time to fix it this weekend, but there it is before I
> forget.

Since it is my code that broke it I took a quick look and I found the problem.

I'm trying to find the shortest fix possible since this is a regression for
2.6.36.

Regards,

Hans

--
Hans Verkuil - video4linux developer - sponsored by TANDBERG, part of Cisco

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