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[media] gspca_xirlink_cit: Grab backlight compensation control while streaming

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As it cannot be changed while streaming.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans de Goede 2012-07-07 16:47:35 -03:00 • committed by Mauro Carvalho Chehab
parent 1ea172d2fd
commit 872099e806
1 changed files with 5 additions and 2 deletions
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7
drivers/media/video/gspca/xirlink_cit.c
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@ -1914,9 +1914,10 @@ static int cit_start_model2(struct gspca_dev *gspca_dev)
break;
}
/* FIXME this cannot be changed while streaming, so we
should report a grabbed flag for this control. */
cit_model2_Packet1(gspca_dev, 0x0028, v4l2_ctrl_g_ctrl(sd->lighting));
/* model2 cannot change the backlight compensation while streaming */
v4l2_ctrl_grab(sd->lighting, true);
/* color balance rg2 */
cit_model2_Packet1(gspca_dev, 0x001e, 0x002f);
/* saturation */
@ -2715,6 +2716,8 @@ static void sd_stop0(struct gspca_dev *gspca_dev)
cit_write_reg(gspca_dev, 0x81, 0x0100); /* LED Off */
break;
case CIT_MODEL2:
v4l2_ctrl_grab(sd->lighting, false);
/* Fall through! */
case CIT_MODEL4:
cit_model2_Packet1(gspca_dev, 0x0030, 0x0004);