Help with plug and play - USB Webcam conflicts with Tv Tuner

[TeeCee]

Hi, thanks for responding to this thread. I tried blacklisting the 
saa7134 but then tvtime can't start the module on its own. Without the 
webcam installed I use this to start tvtime with sound.

tvtime  | arecord -D hw:1,0 -r 32000 -c 2 -f S16_LE | aplay

However if I keep the cam in and use -d  to set the device to video1

tvtime -d /dev/video1 | arecord -D hw:1,0 -r 32000 -c 2 -f S16_LE | 
aplay

I get tuner output with this terminal message

Recording WAVE 'stdin' : Signed 16 bit Little Endian, Rate 32000 Hz, 
Stereo
arecord: set_params:984: Channels count non available
Running tvtime 1.0.2.
Reading configuration from /etc/tvtime/tvtime.xml
Reading configuration from /home/tomcee/.tvtime/tvtime.xml
aplay: playback:2297: read error

I also tried using -F to load a config file with device=/dev/video1
No luck.

Can anyone tell me what's wrong with the syntax of the command.

At this point leaving the cam at /dev/video0 and the tuner at 
/dev/video1, I'm back where I started with no sound output from the 
tuner card.

Thanks for your help.

TC

-----Original Message-----
From: TeeCee <teecee-3xpccZqdWRo7lZ9V/NTDHw at public.gmane.org>
To: tlug-lxSQFCZeNF4 at public.gmane.org
Sent: Sun, Mar 28, 2010 3:41 pm
Subject: [TLUG]: Help with plug and play - USB Webcam conflicts with Tv 
Tuner


HI, I'm helping a friend with configuring an Ubuntu install. The 
default kernel has taken care of most things. 
His Brother Multifunction Printer/Scanner was supported on the web, the 
MSI TV tuner card worked from the 
get go. This card was 5 years old and had a dongle to connect to a 
sound card. It was not needed, I got 
sound by piping tvtime through arecord and  aplay. Even the IR remote 
works, to an extent, apparently 
without lirc installed. 
 
The problem is, now my friend has purchased a web cam. Plugging the cam 
into a running computer, it is 
found as /dev/video1, and it does not conflict with the MSI device. 
However, rebooting with the camera attached 
causes problems. Tvtime has assigned its video input to camera1 and you 
cannot change it with the app. Nor 
can you close tvtimes terminal, even if I run it from a tty ctrl-c 
kills itself but leaves the tvtime window. 
 
I guess my question is how can I bind this web cam to /dev/video1, 
assuming I'm leaving the camera plugged 
in all the time? 
 
Thanks in advance for any help. 
 
TC 
 
 
 
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