Files
linux-apfs/Documentation/video4linux
Hans Verkuil d69f27186c V4L/DVB: v4l2-dev: after a disconnect any ioctl call will be blocked
Until now all fops except release and (unlocked_)ioctl returned an error
after the device node was unregistered. Extend this as well to the ioctl
fops. There is nothing useful that an application can do here and it
complicates the driver code unnecessarily.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2010-10-21 01:06:14 -02:00
..

tlg2300 release notes
====================

This is a v4l2/dvb device driver for the tlg2300 chip.


current status
==============

video
	- support mmap and read().(no overlay)

audio
	- The driver will register a ALSA card for the audio input.

vbi
	- Works for almost TV norms.

dvb-t
	- works for DVB-T

FM
	- Works for radio.

---------------------------------------------------------------------------
TESTED APPLICATIONS:

-VLC1.0.4 test the video and dvb. The GUI is friendly to use.

-Mplayer test the video.

-Mplayer test the FM. The mplayer should be compiled with --enable-radio and
	 --enable-radio-capture.
	The command runs as this(The alsa audio registers to card 1):
	#mplayer radio://103.7/capture/ -radio adevice=hw=1,0:arate=48000 \
		-rawaudio rate=48000:channels=2

---------------------------------------------------------------------------
KNOWN PROBLEMS:
about preemphasis:
	You can set the preemphasis for radio by the following command:
	#v4l2-ctl -d /dev/radio0 --set-ctrl=pre_emphasis_settings=1

	"pre_emphasis_settings=1" means that you select the 50us. If you want
	to select the 75us, please use "pre_emphasis_settings=2"