Gerd Knorr <[EMAIL PROTECTED]> writes:
> > Using the bttv driver in 2.4.19 in tvtime I get the next video frame
> > then read() from /dev/vbi to get the associated VBI frame (yes I know
> > this will be nice and sync'ed in V4L2 but one must support one's users
> > :) and anyway, if I do the read() at the wrong place it ends up
> > blocking forever. Is this a bug?
[ after reading the source code ... ]
Well, the 0.7.x vbi capture code has a number of bugs and races. It
is very sensitive to load. Neverless the worst thing that might
happen should be missing vbi data or vbi data mixed from two frames.
I can't see a code path there it just blocks ...
Can you load bttv 0.7.x with bttv_debug=2, try to make it block in vbi
read() and check what you have in the kernel log then?
Gerd
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