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| author | Hans de Goede <hdegoede@redhat.com> | 2010-02-04 12:10:55 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2010-02-26 21:11:08 +0300 |
| commit | 10bb7530108cc11fedd0d615467a54f341079778 (patch) | |
| tree | 2af504904391545758b42f71a6e5b3658a141c84 | |
| parent | 82e839c9c5f79c4e55dc1b6ecb2cf1c055f753c5 (diff) | |
| download | linux-10bb7530108cc11fedd0d615467a54f341079778.tar.xz | |
V4L/DVB: gscpa_sonixb: limit ov7630 max framerate at 640x480
In 640x480, if the reg11 has less than 4, the image is
unstable (the bridge goes into a higher compression mode
which we have not reverse engineered yet).
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| -rw-r--r-- | drivers/media/video/gspca/sonixb.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/media/video/gspca/sonixb.c b/drivers/media/video/gspca/sonixb.c index 66fffa345e7b..fda14200a050 100644 --- a/drivers/media/video/gspca/sonixb.c +++ b/drivers/media/video/gspca/sonixb.c @@ -809,10 +809,11 @@ static void setexposure(struct gspca_dev *gspca_dev) else if (reg11 > 16) reg11 = 16; - /* In 640x480, if the reg11 has less than 3, the image is - unstable (not enough bandwidth). */ - if (gspca_dev->width == 640 && reg11 < 3) - reg11 = 3; + /* In 640x480, if the reg11 has less than 4, the image is + unstable (the bridge goes into a higher compression mode + which we have not reverse engineered yet). */ + if (gspca_dev->width == 640 && reg11 < 4) + reg11 = 4; /* frame exposure time in ms = 1000 * reg11 / 30 -> reg10 = (sd->exposure / 2) * reg10_max / (1000 * reg11 / 30) */ |