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mohdtaha
n00b
Joined: 19 Mar 2004
Posts: 34
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 Posted: Wed Jun 02, 2004 3:13 am Post subject: /dev/video0 ... I dont know what to do |
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I'm tryin to get my ati TV card to work ... it uses the BT technology .. so i have that enabled in the kernel and video 4linux and I2C-dev , core and bit
I still cant figure it out ... I try running tvtime but it always spits out that it can't find /dev/video0
how do i get dev/video0 or if i can, how do i mknod
thanks |
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fullsteam
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Joined: 25 Apr 2004
Posts: 14
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| Posted: Wed Jun 02, 2004 3:38 am Post subject: |
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Um not sure if this will help because I don't use that software and hardware but I have a webcam and it appears as a device at:
/dev/v4l/video0
So I have to tell my webcam software to use that instead of what it expects - /dev/video0.
Do you have /dev/v4l/video0? if so can you tell the software to use that instead? |
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mohdtaha
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Joined: 19 Mar 2004
Posts: 34
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| Posted: Wed Jun 02, 2004 3:48 am Post subject: |
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| no i dont have that ... , how did u get it ? |
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mohdtaha
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Joined: 19 Mar 2004
Posts: 34
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| Posted: Wed Jun 02, 2004 12:50 pm Post subject: |
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ok i got a picture now ... but the quality is bad ... slow channel changes and no sound although i added all the modules that i believe i should've added.
and i read alot about RTC ... if u have a gentoo-dev-sources .5 can u please pin point where it is
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lbrtuk
l33t
Joined: 08 May 2003
Posts: 910
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| Posted: Wed Jun 02, 2004 1:10 pm Post subject: |
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Have you set the norm right? (PAL-A/PAL-B/NTSC/SECAM)
Have you tried setting the card= and tuner= variables when you modprobe?
Have you looked up specific information for you card in /usr/src/linux/Documentation/video4linux ? |
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fullsteam
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Joined: 25 Apr 2004
Posts: 14
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| Posted: Wed Jun 02, 2004 11:26 pm Post subject: |
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If you are configuring the kernel yourself RTC is enabled under:
Device Drivers->Character drivers->Enhanced Real Time Clock
The device appears as /dev/misc/rtc with a link at /dev/rtc
You'll probably need to change the device permissions to allow users to use it.
Also when I used mplayer it advised to:
echo 1024 > /proc/sys/dev/rtc/max-user-freq
as well. So that's what I have set. Not sure if that's correct for all apps |
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mohdtaha
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Joined: 19 Mar 2004
Posts: 34
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| Posted: Fri Jun 04, 2004 8:41 pm Post subject: |
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| ok now i got picture .. my problem is sound ... i have snd_btbt87x loaded but i still dont get sound .. any ideas ? |
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pipplo
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Joined: 21 Mar 2004
Posts: 11
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| Posted: Sun Jun 06, 2004 10:11 pm Post subject: |
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| How did you get /dev/v4l or /dev/video0 created, cause i still don't have either of those created.. |
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Chol
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Joined: 06 Feb 2004
Posts: 34
Location: Germany
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| Posted: Wed Jul 07, 2004 8:59 am Post subject: |
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| pipplo wrote: | | How did you get /dev/v4l or /dev/video0 created, cause i still don't have either of those created.. |
Same problem here. Already tried to compile v4l directly into the kernel and also as a module, but no video devices  |
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trooper_ryan
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Joined: 07 Apr 2004
Posts: 74
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| Posted: Wed Jul 07, 2004 1:09 pm Post subject: |
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/dev/video is created when the module loads, so I suspect your problems lies there. I would suggest that you look at the output of: lspci -vvv
Check that your capture card is listed and there are no apparent problems. |
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lbrtuk
l33t
Joined: 08 May 2003
Posts: 910
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| Posted: Wed Jul 07, 2004 1:10 pm Post subject: |
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You also have to modprobe the bttv module. That's if you built it.
Or you could build it straight into the kernel. |
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