From f19ed98111d508bafc1aa31478f2c612cbdc26b5 Mon Sep 17 00:00:00 2001 From: Jean-Francois Moine Date: Mon, 28 May 2012 14:04:07 -0300 Subject: [PATCH] [media] gspca - ov534/ov534_9: Fix sccd_read/write errors MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit 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 Signed-off-by: Mauro Carvalho Chehab --- 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 c16bd1b..80c81dd 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) { -- 2.7.4