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authorMauro Carvalho Chehab <mchehab@osg.samsung.com>2014-11-01 10:06:12 -0300
committerMauro Carvalho Chehab <mchehab@osg.samsung.com>2014-11-03 15:57:28 -0200
commit77e97ba2da47fe75bb9a835bb43a29e046c60f99 (patch)
tree755a0d0ed57f9a1fc3903be86d54d9fa8d2fec0f /drivers/media/usb/cx231xx/cx231xx.h
parent[media] cx231xx: use 1 byte read for i2c scan (diff)
downloadlinux-dev-77e97ba2da47fe75bb9a835bb43a29e046c60f99.tar.xz
linux-dev-77e97ba2da47fe75bb9a835bb43a29e046c60f99.zip
[media] cx231xx: disable I2C errors during i2c_scan
Otherwise, it would produce lots of useless messages like: cx231xx: cx231xx_send_usb_command: failed with status --32 After this patch, I2C scan will produce an useful report: [ 9494.050807] cx231xx: i2c_scan: checking for I2C devices on port=0 .. [ 9494.074928] cx231xx: i2c scan: Completed Checking for I2C devices on port=0. [ 9494.074936] cx231xx: i2c_scan: checking for I2C devices on port=3 .. [ 9494.098934] cx231xx: i2c scan: Completed Checking for I2C devices on port=3. [ 9494.098942] cx231xx: i2c_scan: checking for I2C devices on port=2 .. [ 9494.118440] cx231xx: i2c scan: Completed Checking for I2C devices on port=2. [ 9494.118448] cx231xx: i2c_scan: checking for I2C devices on port=4 .. [ 9494.141889] cx231xx: i2c scan: Completed Checking for I2C devices on port=4. [ 9494.060182] cx231xx: i2c scan: found device @ 0x40 [???] [ 9494.062953] cx231xx: i2c scan: found device @ 0x60 [colibri] [ 9494.066071] cx231xx: i2c scan: found device @ 0x88 [hammerhead] [ 9494.067383] cx231xx: i2c scan: found device @ 0x98 [???] [ 9494.090113] cx231xx: i2c scan: found device @ 0xa0 [eeprom] [ 9494.106463] cx231xx: i2c scan: found device @ 0x60 [colibri] [ 9494.113762] cx231xx: i2c scan: found device @ 0xc0 [tuner] [ 9494.121882] cx231xx: i2c scan: found device @ 0x20 [???] Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media/usb/cx231xx/cx231xx.h')
-rw-r--r--drivers/media/usb/cx231xx/cx231xx.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/media/usb/cx231xx/cx231xx.h b/drivers/media/usb/cx231xx/cx231xx.h
index aeee721a8eef..253f2437c0f1 100644
--- a/drivers/media/usb/cx231xx/cx231xx.h
+++ b/drivers/media/usb/cx231xx/cx231xx.h
@@ -610,6 +610,8 @@ struct cx231xx {
unsigned int has_audio_class:1;
unsigned int has_alsa_audio:1;
+ unsigned int i2c_scan_running:1; /* true only during i2c_scan */
+
struct cx231xx_fmt *format;
struct v4l2_device v4l2_dev;