[media] gscpa - sn9c20x: Add sd_isoc_init ensuring enough bw when i420 fmt

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When using the SN9C20X_I420 fmt the sn9c20x needs more bandwidth
than our regular bandwidth calculations reserve.

This patch adds a sd_isoc_init function, which forces the use of a specific
altsetting when using the SN9C20X_I420 fmt.

This fixes the bottom 10-30% of the image getting corrupted when using
the SN9C20X_I420 fmt (which is the default fmt).

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jean-François Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

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Hans de Goede 2012-01-01 16:03:37 -03:00 • committed by Mauro Carvalho Chehab

parent eb3fb7c963

commit d80dd5d036

1 changed files with 37 additions and 0 deletions

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drivers/media/video/gspca/sn9c20x.c

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