ov2722_write_reg
ret = ov2722_write_reg(client, OV2722_16BIT, OV2722_VTS_DIFF_H, 0);
ret = ov2722_write_reg(client, OV2722_16BIT,
ret = ov2722_write_reg(client, OV2722_16BIT,
ret = ov2722_write_reg(client, OV2722_8BIT,
ret = ov2722_write_reg(client, OV2722_16BIT,
ret = ov2722_write_reg(client, OV2722_16BIT,
ret = ov2722_write_reg(client, OV2722_16BIT,
ret = ov2722_write_reg(client, OV2722_16BIT,
ret = ov2722_write_reg(client, OV2722_16BIT,
ret = ov2722_write_reg(client, OV2722_8BIT,
ret = ov2722_write_reg(client, OV2722_8BIT, OV2722_SW_STREAM,