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V4L/DVB (9842): gspca: Center the brightness in sonixj.

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The brightness jumped from max to min at the middle of the control values.

Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Jean-Francois Moine 2008-11-25 04:47:09 -03:00 committed by Mauro Carvalho Chehab
parent abf485fe51
commit b1b056a5f2
1 changed files with 3 additions and 3 deletions
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6
drivers/media/video/gspca/sonixj.c
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@ -89,7 +89,7 @@ static struct ctrl sd_ctrls[] = {
#define BRIGHTNESS_MAX 0xffff
.maximum = BRIGHTNESS_MAX,
.step = 1,
#define BRIGHTNESS_DEF 0x7fff
#define BRIGHTNESS_DEF 0x8000
.default_value = BRIGHTNESS_DEF,
},
.set = sd_setbrightness,
@ -1129,7 +1129,7 @@ static void setbrightness(struct gspca_dev *gspca_dev)
unsigned int expo;
__u8 k2;
k2 = sd->brightness >> 10;
k2 = ((int) sd->brightness - 0x8000) >> 10;
switch (sd->sensor) {
case SENSOR_HV7131R:
expo = sd->brightness << 4;
@ -1147,7 +1147,7 @@ static void setbrightness(struct gspca_dev *gspca_dev)
case SENSOR_OM6802:
expo = sd->brightness >> 6;
sd->exposure = setexposure(gspca_dev, expo);
k2 >>= 1;
k2 = sd->brightness >> 11;
break;
}