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video4linux devices missing (after upgr udev prob.) [solved]
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halfgaar
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l33t


Joined: 22 Feb 2004
Posts: 781
Location: Netherlands

PostPosted: Tue Oct 25, 2005 9:55 pm    Post subject: video4linux devices missing (after upgr udev prob.) [solved] Reply with quote

I have a bttv TV-card, which worked fine until now. I don't often reboot my system, but I just did. Now, all of a sudden, the /dev/video* and /dev/v4l/* are missing. I think it's because I upgraded udev a couple of days ago. I'm running version 70-r1 now, I don't know which version I had before. I would guess 60 or 65 or something.

This is what is stated in the syslog when I load the bttv module, when other video4linux modules are not loaded yet:
Code:

Oct 25 23:52:51 melk Linux video capture interface: v1.00
Oct 25 23:38:10 melk bttv: driver version 0.9.15 loaded
Oct 25 23:38:10 melk bttv: using 8 buffers with 2080k (520 pages) each for capture


These are all the relevant modules:

Code:
Module                  Size  Used by
bttv                  147728  0
video_buf              17540  1 bttv
firmware_class          7872  1 bttv
i2c_algo_bit            8840  1 bttv
v4l2_common             4736  1 bttv
btcx_risc               3912  1 bttv
tveeprom               11672  1 bttv
i2c_core               17808  6 bttv,via686a,i2c_sensor,i2c_isa,i2c_algo_bit,tveeprom
videodev                7360  1 bttv


The relevant part of my udev-rules:

Code:
# v4l devices
KERNEL=="video[0-9]*",  NAME="v4l/video%n", SYMLINK+="video%n", GROUP="video"
KERNEL=="radio[0-9]*",  NAME="v4l/radio%n", GROUP="video"
KERNEL=="vbi[0-9]*",    NAME="v4l/vbi%n", SYMLINK+="vbi%n", GROUP="video"
KERNEL=="vtx[0-9]*",    NAME="v4l/vtx%n", GROUP="video"


I tried running udevstart and reloading the modules about a 100 times. I can't see what's wrong.

emerge info:

Code:
Portage 2.0.51.22-r3 (default-linux/x86/2005.0, gcc-3.3.6, glibc-2.3.5-r1, 2.6.12-gentoo-r6 i686)
=================================================================
System uname: 2.6.12-gentoo-r6 i686 AMD Athlon(tm) XP 1600+
Gentoo Base System version 1.6.13
dev-lang/python:     2.2.3-r6, 2.3.5-r2
sys-apps/sandbox:    1.2.12
sys-devel/autoconf:  2.13, 2.59-r6
sys-devel/automake:  1.4_p6, 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r1
sys-devel/binutils:  2.15.92.0.2-r10
sys-devel/libtool:   1.5.20
virtual/os-headers:  2.6.11-r2
ACCEPT_KEYWORDS="x86"
AUTOCLEAN="yes"
CBUILD="i686-pc-linux-gnu"
CFLAGS="-O3 -march=i686 -mcpu=athlon-xp -pipe"
CHOST="i686-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/kde/2/share/config /usr/kde/3.4/env /usr/kde/3.4/share/config /usr/kde/3.4/shutdown /usr/kde/3/share/config /usr/lib/X11/xkb /usr/share/config /usr/share/texmf/dvipdfm/config/ /usr/share/texmf/dvips/config/ /usr/share/texmf/tex/generic/config/ /usr/share/texmf/tex/platex/config/ /usr/share/texmf/xdvi/ /var/qmail/control"
CONFIG_PROTECT_MASK="/etc/gconf /etc/terminfo /etc/env.d"
CXXFLAGS="-O3 -march=i686 -mcpu=athlon-xp -pipe"
DISTDIR="/usr/portage/distfiles"
FEATURES="autoconfig ccache distlocks fixpackages sandbox sfperms strict"
GENTOO_MIRRORS="ftp://ftp.gentoo.mesh-solutions.com/gentoo/ http://ftp.easynet.nl/mirror/gentoo/ ftp://ftp.easynet.nl/mirror/gentoo/ http://ftp.snt.utwente.nl/pub/os/linux/gentoo ftp://ftp.snt.utwente.nl/pub/os/linux/gentoo http://vlaai.snt.ipv6.utwente.nl/pub/os/linux/gentoo/ ftp://vlaai.snt.ipv6.utwente.nl/pub/os/linux/gentoo/ ftp://mirror.scarlet-internet.nl/pub/gentoo ftp://mirror.nutsmaas.nl/gentoo/ http://distfiles.gentoo.org http://www.ibiblio.org/pub/Linux/distributions/gentoo"
MAKEOPTS="-j2"
PKGDIR="/usr/portage/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/usr/local/portage"
SYNC="rsync://rsync.europe.gentoo.org/gentoo-portage"
USE="x86 3dnow 3dnowex 3dnowext X aac alsa apache2 apm avi bash-completion berkdb bitmap-fonts cdr crypt cups curl dga dvd dvdr eds emboss encode fam flac foomaticdb fortran gdbm gif gpm gtk gtk2 hal imagemagick imap imlib ipv6 java joystick jpeg kde kdeenablefinal kerberos libg++ libwww lirc mad mikmod mmx mmx2 mmxext mp3 mpeg msn ncurses network no-htdocs ogg oggvorbis openal opengl oss pam pdflib perl png postgres python qt quicktime readline rtc ruby samba sasl scanner sdl slang speex sql sse ssl subversion svga tcltk tcpd tetex theora tiff truetype truetype-fonts type1-fonts udev unicode vorbis win32codecs wxwindows xine xml2 xmms xv xvid zlib userland_GNU kernel_linux elibc_glibc"
Unset:  ASFLAGS, CTARGET, LANG, LC_ALL, LDFLAGS, LINGUAS


Anybody got an idea?


Last edited by halfgaar on Tue Nov 29, 2005 11:26 pm; edited 1 time in total
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halfgaar
l33t
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Joined: 22 Feb 2004
Posts: 781
Location: Netherlands

PostPosted: Tue Nov 08, 2005 9:30 pm    Post subject: Reply with quote

*bump*. Anybody got an idea? I'm still at a loss. Upgrading my kernel (from 2.6.12-r6 to 2.6.13-r5) didn't help. In fact, it made things worse, for other hardware that is.
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halfgaar
l33t
l33t


Joined: 22 Feb 2004
Posts: 781
Location: Netherlands

PostPosted: Tue Nov 29, 2005 11:25 pm    Post subject: Reply with quote

Should anyone care, I solved it, finally... After I pulled out my USB2 card, it worked fine... I now switched slots for the TV- and USB-card, and it still works.
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