[media] gspca - sn9c20x: Don't do sensor update before the capture is started (4fb8137c) · Commits · 戴 / test

Telling the bridge to update the sensor when setting the exposure or the gain is not needed when the image transfer is not started. Signed-off-by:

drivers/media/video/gspca/sn9c20x.c

+8 −2

Original line number	Diff line number	Diff line
		@@ -1644,9 +1644,12 @@ static void set_exposure(struct gspca_dev *gspca_dev)
		{
		struct sd sd = (struct sd ) gspca_dev;
		u8 exp[8] = {sd->i2c_intf, sd->i2c_addr,
		0x00, 0x00, 0x00, 0x00, 0x00, 0x1e};
		0x00, 0x00, 0x00, 0x00, 0x00, 0x10};
		int expo;

		if (gspca_dev->streaming)
		exp[7] = 0x1e;

		expo = sd->ctrls[EXPOSURE].val;
		switch (sd->sensor) {
		case SENSOR_OV7660:
		@@ -1683,9 +1686,12 @@ static void set_gain(struct gspca_dev *gspca_dev)
		{
		struct sd sd = (struct sd ) gspca_dev;
		u8 gain[8] = {sd->i2c_intf, sd->i2c_addr,
		0x00, 0x00, 0x00, 0x00, 0x00, 0x1d};
		0x00, 0x00, 0x00, 0x00, 0x00, 0x10};
		int g;

		if (gspca_dev->streaming)
		gain[7] = 0x15; /* or 1d ? */

		g = sd->ctrls[GAIN].val;
		switch (sd->sensor) {
		case SENSOR_OV7660: