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Old 06-15-2004, 04:56 PM   #1
Registered: Feb 2003
Location: Florence, AL
Distribution: Debian
Posts: 157

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tv tuner card question

I have an intel create and share pci capture card and I need some help on getting it loaded at boot time.

The problem I have is this. If I go in and run xawtv first, then start webcam everything is fine. If I try to load webcam after a reboot before loading xawtv I get:

heathpitts@webcam-beta:~$ webcam /etc/webcam1.conf
reading config file: /etc/webcam1.conf
v4l: timeout (got SIGALRM), hardware/driver problems?
ioctl: VIDIOCSYNC(int=0): Interrupted system call
ioctl: VIDIOCMCAPTURE(frame=0;height=32;width=48;format=7): Device or resource busy
ioctl: VIDIOCMCAPTURE(frame=0;height=32;width=48;format=13): Device or resource busy
ioctl: VIDIOCMCAPTURE(frame=0;height=32;width=48;format=15): Device or resource busy
can't get rgb24 data

I have the following in my modules.conf file:

alias char-major-81 videodev
alias char-major-81-0 bttv
options bttv card=32 radio=0 tuner=4

What does xawtv load before it starts that gets this all working? I have attempted insmod bttv and modprobe bttv but nothing loads all the modules corrctly like xawtv does. I want this to start up on boot so I don't have to start xawtv then start webcam if the pc ever goes down due to power failure.
Old 06-15-2004, 08:04 PM   #2
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Registered: Aug 2003
Location: Glasgow
Distribution: Fedora / Solaris
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Have a look at the output from 'lsmod' both when it's working, and when it's not (you'll need to be root). That should let you see what modules are loaded.

xawtv will also be 'tuning' the card when it starts, so that could be the problem too. xawtv comes with a program called v4lctl, which allows you to 'switch on' and tune capture cards using the same config files xawtv uses. See 'man v4lctl' to see what it can do.

Old 06-16-2004, 07:44 PM   #3
Registered: Feb 2003
Location: Florence, AL
Distribution: Debian
Posts: 157

Original Poster
Rep: Reputation: 30
Ok, got it working. I simply set up a script to run on boot that does the following:

v4lctl -c /dev/video0 setinput S-Video

It works fine now. I can reboot the system now without having to do any configuration on the tv card before using webcam to load my images.


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