Commit e6e48378 authored by Antonio Ospite's avatar Antonio Ospite Committed by Mauro Carvalho Chehab
Browse files

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: default avatarAntonio Ospite <ospite@studenti.unina.it>
Signed-off-by: default avatarJean-Francois Moine <moinejf@free.fr>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 15e3209a

drivers/media/video/gspca/ov534.c

+17 −0
Original line number Diff line number Diff line
@@ -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 */

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