[linux-dvb] em28xx - analog tv audio on kworld 305U

Markus Rechberger mrechberger at gmail.com
Sat Oct 11 01:06:01 CEST 2008


On Sat, Oct 11, 2008 at 12:58 AM, Chris Russell <v4l at therussellhome.us> wrote:
> On Fri, 10 Oct 2008 04:19:31 +0200
> "Markus Rechberger" <mrechberger at gmail.com> wrote:
>
>> On Fri, Oct 10, 2008 at 4:13 AM, Chris Russell <v4l at therussellhome.us> wrote:
>> >        I have a KWorld DVB-T 305U on Gentoo using the v4l-dvb-hg
>> > package (live development version of v4l&dvb-driver for Kernel 2.6)
>> > that I updated today (03Oct08).
>> >
>> >        The analog TV looks great but I cannot get the sound to work.
>> > I have tried just about everything I could find searching including:
>> > $ arecord -D hw:1 -f dat | aplay -f dat
>> >        and
>> > $ mplayer tv:// -tv driver=v4l2:device=/dev/video0:chanlist=us-cable:alsa:adevice=hw.1,0:amode=1:audiorate=32000:forceaudio:volume=100:immediatemode=0:norm=NTSC
>> >        and
>> > $ v4lctl volume mute off; v4lctl volume 31
>> >        and
>> > even attempting a manual cat from /dev/audio1 to /dev/audio
>> >
>> > So what am I missing or is audio for the 305U not working yet?
>> >
>>
>> Hi,
>>
>> you need the em28xx-new code from mcentral.de in order to get audio
>> work with it, audio for it is still in progress but it should work
>> fine as long as you have attached one device only.
>>
>> Markus
>
> Thanks for the reply.  Unfortunately, I still end up with the same
> result.  I un-installed v4l-dvb-hg, added back v4l support in my kernel
> (2.6.26) and pulled down the latest em28xx-new driver (based on the
> sunshine overlay which pulls from
> http://mcentral.de/hg/~mrec/em28xx-new/).  Again, tv works but audio
> does not.  Did I miss something?
>

I think you have to look at em28xx-audioep.ko for this device.

Markus

> Soli Deo Gloria,
> Chris
>
> -- dmesg output --
> usb 2-5: new high speed USB device using ehci_hcd and address 5
> usb 2-5: configuration #1 chosen from 1 choice
> em28xx v4l2 driver version 0.0.1 loaded
> em28xx: new video device (eb1a:e305): interface 0, class 255
> em28xx: device is attached to a USB 2.0 bus
> em28xx #0: Alternate settings: 8
> em28xx #0: Alternate setting 0, max size= 0
> em28xx #0: Alternate setting 1, max size= 0
> em28xx #0: Alternate setting 2, max size= 1448
> em28xx #0: Alternate setting 3, max size= 2048
> em28xx #0: Alternate setting 4, max size= 2304
> em28xx #0: Alternate setting 5, max size= 2580
> em28xx #0: Alternate setting 6, max size= 2892
> em28xx #0: Alternate setting 7, max size= 3072
> attach_inform: tvp5150 detected.
> tvp5150 1-005c: tvp5150am1 detected.
> successfully attached tuner
> em28xx #0: V4L2 VBI device registered as /dev/vbi0
> em28xx #0: V4L2 device registered as /dev/video0
> em28xx #0: Found KWorld DVB-T 305U
> usbcore: registered new interface driver em28xx
> em2880-dvb.c: DVB Init
> em2880-dvb.c: unsupported device
> Em28xx: Initialized (Em2880 DVB Extension) extension
> tvp5150 1-005c: tvp5150am1 detected.
> Em28xx: Removed (Em2880 DVB Extension) extension
> usbcore: deregistering interface driver em28xx
> em28xx #0: disconnecting em28xx#0 video
> em28xx #0: V4L2 VIDEO devices /dev/video0 deregistered
> em28xx #0: V4L2 VBI devices /dev/vbi0 deregistered
>



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