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V4L/DVB: cx23885: Add a VIDIOC_LOG_STATUS ioctl function for analog video devices 

Add a simple log_status function for raw analog video capture device nodes,
to provide insight into the state of the CX2388[578] A/V decoder core.

Signed-off-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Andy Walls 2010-07-18 18:18:06 -03:00 committed by Mauro Carvalho Chehab
parent ebbeb46000
commit e9e5cf4727
1 changed files with 16 additions and 0 deletions
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16
drivers/media/video/cx23885/cx23885-video.c
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@ -1205,6 +1205,21 @@ static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
return 0;
}
static int vidioc_log_status(struct file *file, void *priv)
{
struct cx23885_fh *fh = priv;
struct cx23885_dev *dev = fh->dev;
printk(KERN_INFO
"%s/0: ============ START LOG STATUS ============\n",
dev->name);
call_all(dev, core, log_status);
printk(KERN_INFO
"%s/0: ============= END LOG STATUS =============\n",
dev->name);
return 0;
}
static int vidioc_queryctrl(struct file *file, void *priv,
struct v4l2_queryctrl *qctrl)
{
@ -1410,6 +1425,7 @@ static const struct v4l2_ioctl_ops video_ioctl_ops = {
.vidioc_enum_input = vidioc_enum_input,
.vidioc_g_input = vidioc_g_input,
.vidioc_s_input = vidioc_s_input,
.vidioc_log_status = vidioc_log_status,
.vidioc_queryctrl = vidioc_queryctrl,
.vidioc_g_ctrl = vidioc_g_ctrl,
.vidioc_s_ctrl = vidioc_s_ctrl,