Hi List,
i am adapting the freebsd-hauppauge-pvr250 driver to support
pvr150/500s. i have been experiencing the same scaling problems with
the cx25840 as pvrusb2 ( no horizontal scaling ).
i dived into it, and found 2 things needed to enable horizontal scaling:
- setup the HSCALE and VSCALE registers ( obvious! )
- call: ( this is ivtv-0.4.6 sourcecode ) when configuring the device
struct v4l2_format vbi_in;
vbi_in.type = V4L2_BUF_TYPE_SLICED_VBI_CAPTURE;
cx25840_command(sc->iicbus, VIDIOC_S_FMT, &vbi_in);
check cx25840-vbi.c from ivtv/linux to see what this does. (
ivtv-0.4.6 still includes cx25840-vbi.c )
hope this helps,
usleep
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