From b1b056a5f22851273813f7f1208b50fb7934f12a Mon Sep 17 00:00:00 2001
From: Jean-Francois Moine <moinejf@free.fr>
Date: Tue, 25 Nov 2008 04:47:09 -0300
Subject: [PATCH] V4L/DVB (9842): gspca: Center the brightness in sonixj.
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>
---
drivers/media/video/gspca/sonixj.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/media/video/gspca/sonixj.c b/drivers/media/video/gspca/sonixj.c
index 34f7f58e527e..83564e09eeea 100644
--- a/drivers/media/video/gspca/sonixj.c
+++ b/drivers/media/video/gspca/sonixj.c
@@ -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;
}
--
2.34.1