The ov534 bridge is too slow to handle the sensor accesses requested by fast hosts giving 'sccb_reg_write failed'. A small delay fixes the problem. Signed-off-by: Jean-François Moine <moinejf@xxxxxxx> --- drivers/media/video/gspca/ov534.c | 1 + drivers/media/video/gspca/ov534_9.c | 1 + 2 files changed, 2 insertions(+) diff --git a/drivers/media/video/gspca/ov534.c b/drivers/media/video/gspca/ov534.c index b5acb1e..d5a7873 100644 --- a/drivers/media/video/gspca/ov534.c +++ b/drivers/media/video/gspca/ov534.c @@ -851,6 +851,7 @@ static int sccb_check_status(struct gspca_dev *gspca_dev) int i; for (i = 0; i < 5; i++) { + msleep(10); data = ov534_reg_read(gspca_dev, OV534_REG_STATUS); switch (data) { diff --git a/drivers/media/video/gspca/ov534_9.c b/drivers/media/video/gspca/ov534_9.c index e6601b8..0120f94 100644 --- a/drivers/media/video/gspca/ov534_9.c +++ b/drivers/media/video/gspca/ov534_9.c @@ -1008,6 +1008,7 @@ static int sccb_check_status(struct gspca_dev *gspca_dev) int i; for (i = 0; i < 5; i++) { + msleep(10); data = reg_r(gspca_dev, OV534_REG_STATUS); switch (data) { -- 1.7.10 -- Ken ar c'hentañ | ** Breizh ha Linux atav! ** Jef | http://moinejf.free.fr/ -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html