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Subject: [media] gspca/sn9c20x: Test if sensor is a OV sensor Author: Mauro Carvalho Chehab <[email protected]> Date: Mon Dec 6 06:53:05 2010 -0300 Instead of just assuming a ov9650 sensor based on USB ID, double-check it, by reading the sensor ID. Acked-by: Jean-Francois Moine <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]> drivers/media/video/gspca/sn9c20x.c | 9 +++++++++ 1 files changed, 9 insertions(+), 0 deletions(-) --- http://git.linuxtv.org/media_tree.git?a=commitdiff;h=5022ba0da8adf4fa82d1c752364b48342d15b0c4 diff --git a/drivers/media/video/gspca/sn9c20x.c b/drivers/media/video/gspca/sn9c20x.c index 6b155ae..1e0f219 100644 --- a/drivers/media/video/gspca/sn9c20x.c +++ b/drivers/media/video/gspca/sn9c20x.c @@ -1224,8 +1224,17 @@ static int i2c_r2(struct gspca_dev *gspca_dev, u8 reg, u16 *val) static int ov9650_init_sensor(struct gspca_dev *gspca_dev) { int i; + u16 id; struct sd *sd = (struct sd *) gspca_dev; + if (i2c_r2(gspca_dev, 0x1c, &id) < 0) + return -EINVAL; + + if (id != 0x7fa2) { + err("sensor id for ov9650 doesn't match (0x%04x)", id); + return -ENODEV; + } + for (i = 0; i < ARRAY_SIZE(ov9650_init); i++) { if (i2c_w1(gspca_dev, ov9650_init[i].reg, ov9650_init[i].val) < 0) { _______________________________________________ linuxtv-commits mailing list [email protected] http://www.linuxtv.org/cgi-bin/mailman/listinfo/linuxtv-commits
