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V4L/DVB (13448): gspca - main: Add a gspca flag for inactive controls.

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Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Jean-Francois Moine 2009-11-12 15:59:27 -03:00 committed by Mauro Carvalho Chehab
parent 7ce5c41db3
commit 4af8566858
2 changed files with 4 additions and 0 deletions
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3
drivers/media/video/gspca/gspca.c
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@ -1158,10 +1158,13 @@ static int vidioc_queryctrl(struct file *file, void *priv,
}
} else {
ctrls = get_ctrl(gspca_dev, id);
i = ctrls - gspca_dev->sd_desc->ctrls;
}
if (ctrls == NULL)
return -EINVAL;
memcpy(q_ctrl, ctrls, sizeof *q_ctrl);
if (gspca_dev->ctrl_inac & (1 << i))
q_ctrl->flags |= V4L2_CTRL_FLAG_INACTIVE;
return 0;
}

1
drivers/media/video/gspca/gspca.h
View File

@ -143,6 +143,7 @@ struct gspca_dev {
struct cam cam; /* device information */
const struct sd_desc *sd_desc; /* subdriver description */
unsigned ctrl_dis; /* disabled controls (bit map) */
unsigned ctrl_inac; /* inactive controls (bit map) */
#define USB_BUF_SZ 64
__u8 *usb_buf; /* buffer for USB exchanges */