diff options
| author | Antonio Ospite <ospite@studenti.unina.it> | 2008-12-14 05:48:07 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2008-12-30 09:39:04 -0200 |
| commit | e6e483782772994fe42ef9e8b5b4d6f6376b3d45 (patch) | |
| tree | a80a4b28b22d3695cc008c081b89ef2fe3f36478 /drivers/media/video/gspca | |
| parent | 15e3209a30c1b4dd52e937388fb3969d06dc33ec (diff) | |
V4L/DVB (9883): gspca - ov534: Show sensor ID.
The original version of sccb_read_reg() is from Jim Paris.
NOTE: as it is now reading sensor ID won't work for sensors on different
i2c slave address.
Signed-off-by: Antonio Ospite <ospite@studenti.unina.it>
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/gspca')
| -rw-r--r-- | drivers/media/video/gspca/ov534.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/media/video/gspca/ov534.c b/drivers/media/video/gspca/ov534.c index edcd92557c8..ad97b0be5f3 100644 --- a/drivers/media/video/gspca/ov534.c +++ b/drivers/media/video/gspca/ov534.c @@ -149,6 +149,20 @@ static void sccb_reg_write(struct usb_device *udev, u16 reg, u8 val) PDEBUG(D_ERR, "sccb_reg_write failed"); } +static u8 sccb_reg_read(struct usb_device *udev, u16 reg) +{ + ov534_reg_write(udev, OV534_REG_SUBADDR, reg); + ov534_reg_write(udev, OV534_REG_OPERATION, OV534_OP_WRITE_2); + if (!sccb_check_status(udev)) + PDEBUG(D_ERR, "sccb_reg_read failed 1"); + + ov534_reg_write(udev, OV534_REG_OPERATION, OV534_OP_READ_2); + if (!sccb_check_status(udev)) + PDEBUG(D_ERR, "sccb_reg_read failed 2"); + + return ov534_reg_read(udev, OV534_REG_READ); +} + static const __u8 ov534_reg_initdata[][2] = { { 0xe7, 0x3a }, @@ -339,6 +353,9 @@ static void ov534_setup(struct usb_device *udev) ov534_reg_write(udev, ov534_reg_initdata[i][0], ov534_reg_initdata[i][1]); + PDEBUG(D_PROBE, "sensor is ov%02x%02x", + sccb_reg_read(udev, 0x0a), sccb_reg_read(udev, 0x0b)); + ov534_set_led(udev, 1); /* Initialize sensor */ |