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| author | Erik Andr?n <erik.andren@gmail.com> | 2008-12-31 13:25:42 +0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-04-07 04:44:43 +0400 |
| commit | 7136e705d8db46f22657523ee108be35c59ce3e9 (patch) | |
| tree | 8436673f4d62ca6ef859636ea3492ede0c8604ed /drivers/media | |
| parent | 5a0489b3beb9de0c42f2a93113d6bd148473ac9b (diff) | |
| download | linux-7136e705d8db46f22657523ee108be35c59ce3e9.tar.xz | |
V4L/DVB (11419): gspca - m5602-ov9650: Don't read exposure data from COM1.
ov9650: Reading the COM1 register corrupts the image.
Decrease the granularity of the exposure and limit its upper range
as setting such high values doesn't have any effect on the image.
Signed-off-by: Erik Andr?n <erik.andren@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/video/gspca/m5602/m5602_ov9650.c | 9 | ||||
| -rw-r--r-- | drivers/media/video/gspca/m5602/m5602_ov9650.h | 2 |
2 files changed, 3 insertions, 8 deletions
diff --git a/drivers/media/video/gspca/m5602/m5602_ov9650.c b/drivers/media/video/gspca/m5602/m5602_ov9650.c index de45649c739c..da6b72a7cf6f 100644 --- a/drivers/media/video/gspca/m5602/m5602_ov9650.c +++ b/drivers/media/video/gspca/m5602/m5602_ov9650.c @@ -75,8 +75,8 @@ const static struct ctrl ov9650_ctrls[] = { .type = V4L2_CTRL_TYPE_INTEGER, .name = "exposure", .minimum = 0x00, - .maximum = 0xffff, - .step = 0x1, + .maximum = 0x1ff, + .step = 0x4, .default_value = EXPOSURE_DEFAULT, .flags = V4L2_CTRL_FLAG_SLIDER }, @@ -407,11 +407,6 @@ int ov9650_get_exposure(struct gspca_dev *gspca_dev, __s32 *val) u8 i2c_data; int err; - err = m5602_read_sensor(sd, OV9650_COM1, &i2c_data, 1); - if (err < 0) - return err; - *val = i2c_data & 0x03; - err = m5602_read_sensor(sd, OV9650_AECH, &i2c_data, 1); if (err < 0) return err; diff --git a/drivers/media/video/gspca/m5602/m5602_ov9650.h b/drivers/media/video/gspca/m5602/m5602_ov9650.h index 08ae7ea96ffa..ca0e42ee05ce 100644 --- a/drivers/media/video/gspca/m5602/m5602_ov9650.h +++ b/drivers/media/video/gspca/m5602/m5602_ov9650.h @@ -123,7 +123,7 @@ #define GAIN_DEFAULT 0x14 #define RED_GAIN_DEFAULT 0x70 #define BLUE_GAIN_DEFAULT 0x20 -#define EXPOSURE_DEFAULT 0x5003 +#define EXPOSURE_DEFAULT 0x1ff /*****************************************************************************/ |