[pvrusb2] New driver snapshot: pvrusb2-mci-20080210

[Mark Goldberg]

On Sun, Mar 9, 2008 at 8:01 PM, Mark Goldberg <marklgoldberg at gmail.com> wrote:
>  It seems then the cx25840 is being initialized differently, for a
>  different video standard
>  and syncing to capure starting somewhere different in the vertical
>  interval. I don't know offhand
>  what the differences in the vertical sync are for different standards.
>  It does not seem to get that
>  it should be NTSC in the initialization. When I first started using
>  the driver, mythtv was setting
>  it to PAL and it would not capture smoothly. The symptoms are
>  different, but maybe explicity setting
>  the standards will help. Can I help this by putting video_std=X in modprobe.conf
>  for the pvrusb2 module? What do I put for NTSC-M? It does seem to get
>  to 48 kHz audio sampling
>  eventually. I dont see a module parm to set that.

I downloaded the data sheet. It should discover the correct standard,
except I think it can't tell NTSC-M from
NTSC-J. How is the AFD_NTSC_SEL set? Do you set that explicitly, or is
it done in the CX25840
driver?

It would be a cheezy workaround, but if it were available to change
VBLANK_CNT_LO and VBLANK_CNT_HI using the
/sys interface, that would probably work.

If that is fairly easy to try, give me a hint where to look in your
driver and I'll try.

Mark.