hack: ad5820: add printks.
For focus to work, it is needed to boot into "good" kernel, then
reboot into "good" kernel again...?
diff --git a/drivers/media/i2c/ad5820.c b/drivers/media/i2c/ad5820.c
index b9d3b42..b84304f 100644
--- a/drivers/media/i2c/ad5820.c
+++ b/drivers/media/i2c/ad5820.c
@@ -96,6 +96,7 @@ static int ad5820_write(struct ad5820_device *coil, u16 data)
static int ad5820_update_hw(struct ad5820_device *coil)
{
u16 status;
+ int ret;
status = RAMP_US_TO_CODE(coil->focus_ramp_time);
status |= coil->focus_ramp_mode
@@ -105,7 +106,11 @@ static int ad5820_update_hw(struct ad5820_device *coil)
if (coil->standby)
status |= AD5820_POWER_DOWN;
- return ad5820_write(coil, status);
+ printk("ad5820: focusing to %d / %x\n", coil->focus_absolute, status);
+ ret = ad5820_write(coil, status);
+ if (ret)
+ printk("ad5820: writing to hardware failed: %d\n", ret);
+ return ret;
}
/*
