[PATCH 2/3] gspca_cpia1: Disable illuminator controls if not an Intel Play QX3

[Andy Walls <awalls@md.metrocast.net>]

gspca_cpia1: Disable illuminator controls if not an Intel Play QX3

The illuminator controls should only be available to the user for the Intel
Play QX3 microscope.

Signed-off-by: Andy Walls <awalls@md.metrocast.net>

diff -r d165649ca8a0 -r 32d5c323c541 linux/drivers/media/video/gspca/cpia1.c
--- a/linux/drivers/media/video/gspca/cpia1.c	Sat Sep 11 14:15:26 2010 -0400
+++ b/linux/drivers/media/video/gspca/cpia1.c	Sat Sep 11 21:15:03 2010 -0400
@@ -1743,6 +1743,22 @@
 	do_command(gspca_dev, CPIA_COMMAND_GetCameraStatus, 0, 0, 0, 0);
 }
 
+static void sd_disable_qx3_ctrls(struct gspca_dev *gspca_dev)
+{
+	int i, n;
+	__u32 id;
+
+	n = ARRAY_SIZE(sd_ctrls);
+	for (i = 0; i < n; i++) {
+		id = sd_ctrls[i].qctrl.id;
+
+		if (id == V4L2_CID_ILLUMINATORS_1 ||
+		    id == V4L2_CID_ILLUMINATORS_2) {
+			gspca_dev->ctrl_dis |= (1 << i);
+		}
+	}
+}
+
 /* this function is called at probe and resume time */
 static int sd_init(struct gspca_dev *gspca_dev)
 {
@@ -1758,6 +1774,9 @@
 
 	sd_stopN(gspca_dev);
 
+	if (!sd->params.qx3.qx3_detected)
+		sd_disable_qx3_ctrls(gspca_dev);
+
 	PDEBUG(D_PROBE, "CPIA Version:             %d.%02d (%d.%d)",
 			sd->params.version.firmwareVersion,
 			sd->params.version.firmwareRevision,