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#1 2005-11-23 06:19:50
- nbcjr
- Member
- From: BRAZIL!
- Registered: 2004-12-04
- Posts: 79
video4linux problem
I'm having a problem, it seems that v4l isn't installed. I had it working months ago, don't know why it doesn't work now, maybe something to do with udev... please help me
i've made a thread about it little ago, but there were no replies...
http://bbs.archlinux.org/viewtopic.php?t=16515
(please reply in this topic)
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#2 2005-11-23 06:30:30
- nbcjr
- Member
- From: BRAZIL!
- Registered: 2004-12-04
- Posts: 79
Re: video4linux problem
# vc devices
KERNEL=="vcs", NAME="vcc/0"
KERNEL=="vcs[0-9]*", NAME="vcc/%n"
KERNEL=="vcsa", NAME="vcc/a0"
KERNEL=="vcsa[0-9]*", NAME="vcc/a%n"
KERNEL=="ptmx", MODE="0666"
KERNEL=="tty", MODE="0666"
# video devices
SUBSYSTEM=="video4linux", GROUP="video"
KERNEL=="dvb*", PROGRAM="/etc/udev/scripts/dvb.sh %k", NAME="%c", GROUP="video"
KERNEL=="nvidia*", GROUP="video"
KERNEL=="card[0-9]*", NAME="dri/%k", GROUP="video"
KERNEL=="3dfx*", NAME="%k", GROUP="video"
# v4l devices
KERNEL=="video[0-9]*", NAME="v4l/video%n", SYMLINK+="%k", GROUP="video"
KERNEL=="radio[0-9]*", NAME="v4l/radio%n", SYMLINK+="radio%e", GROUP="video"
KERNEL=="vbi[0-9]*", NAME="v4l/vbi%n", SYMLINK+="%k", GROUP="video"
KERNEL=="vtx[0-9]*", NAME="v4l/vtx%n", SYMLINK+="%k", GROUP="video"
I'm on group video, and
[root@universo nbcjr]# ls -alh /dev/
total 8.5K
drwxr-xr-x 24 root root 0 2005-11-23 01:50 .
drwxr-xr-x 20 root root 520 2005-11-21 21:07 ..
drwxr-xr-x 2 root root 0 2005-11-23 03:50 .udevdb
lrwxrwxrwx 1 root root 10 2005-11-23 03:50 adsp -> sound/adsp
lrwxrwxrwx 1 root root 11 2005-11-23 03:50 audio -> sound/audio
drwxr-xr-x 3 root root 0 2005-11-23 01:50 cd
lrwxrwxrwx 1 root root 3 2005-11-23 01:50 cdrom -> hdc
drwxr-xr-x 2 root root 0 2005-11-23 01:50 cdroms
lrwxrwxrwx 1 root root 3 2005-11-23 01:50 cdrw -> hdc
crw-rw---- 1 root tty 5, 1 2005-11-23 03:50 console
lrwxrwxrwx 1 root root 11 2005-11-23 01:50 core -> /proc/kcore
drwxr-xr-x 3 root root 0 2005-11-23 01:50 discs
drwxr-xr-x 6 root root 0 2005-11-23 01:50 disk
lrwxrwxrwx 1 root root 9 2005-11-23 03:50 dsp -> sound/dsp
lrwxrwxrwx 1 root root 3 2005-11-23 01:50 dvd -> hdc
drwxr-xr-x 2 root root 0 2005-11-23 01:50 fb
lrwxrwxrwx 1 root root 4 2005-11-23 01:50 fb0 -> fb/0
lrwxrwxrwx 1 root root 13 2005-11-23 01:50 fd -> /proc/self/fd
brw-rw---- 1 root floppy 2, 0 2005-11-23 01:49 fd0
lrwxrwxrwx 1 root root 3 2005-11-23 01:49 fd0h1200 -> fd0
lrwxrwxrwx 1 root root 3 2005-11-23 01:49 fd0u1440 -> fd0
lrwxrwxrwx 1 root root 3 2005-11-23 01:49 fd0u360 -> fd0
lrwxrwxrwx 1 root root 3 2005-11-23 01:49 fd0u720 -> fd0
drwxr-xr-x 2 root root 0 2005-11-23 01:49 floppy
crw-rw-rw- 1 root root 1, 7 2005-11-23 01:49 full
brw-rw---- 1 root disk 3, 64 2005-11-23 01:50 hdb
brw-rw---- 1 root disk 3, 65 2005-11-23 01:50 hdb1
brw-rw---- 1 root disk 3, 66 2005-11-23 01:50 hdb2
brw-rw---- 1 root disk 3, 67 2005-11-23 01:50 hdb3
brw-rw---- 1 root disk 3, 68 2005-11-23 01:50 hdb4
brw-rw---- 1 root disk 3, 69 2005-11-23 01:50 hdb5
brw-rw---- 1 root optical 22, 0 2005-11-23 01:50 hdc
drwxr-xr-x 3 root root 0 2005-11-23 01:50 ide
prw------- 1 root root 0 2005-11-23 03:49 initctl
drwxr-xr-x 2 root root 0 2005-11-23 01:50 input
crw-r----- 1 root kmem 1, 2 2005-11-23 01:49 kmem
crw-rw---- 1 root root 1, 11 2005-11-23 01:49 kmsg
drwxr-xr-x 2 root root 0 2005-11-23 01:49 legacy
srw-rw-rw- 1 root root 0 2005-11-23 03:50 log
drwxr-xr-x 2 root root 0 2005-11-23 01:50 loop
lrwxrwxrwx 1 root root 6 2005-11-23 01:50 loop0 -> loop/0
lrwxrwxrwx 1 root root 6 2005-11-23 01:50 loop1 -> loop/1
lrwxrwxrwx 1 root root 6 2005-11-23 01:50 loop2 -> loop/2
lrwxrwxrwx 1 root root 6 2005-11-23 01:50 loop3 -> loop/3
lrwxrwxrwx 1 root root 6 2005-11-23 01:50 loop4 -> loop/4
lrwxrwxrwx 1 root root 6 2005-11-23 01:50 loop5 -> loop/5
lrwxrwxrwx 1 root root 6 2005-11-23 01:50 loop6 -> loop/6
lrwxrwxrwx 1 root root 6 2005-11-23 01:50 loop7 -> loop/7
drwxr-xr-x 2 root root 0 2005-11-23 01:50 mapper
drwxr-xr-x 2 root root 0 2005-11-23 01:50 md
brw-rw---- 1 root disk 9, 0 2005-11-23 01:50 md0
crw-r----- 1 root kmem 1, 1 2005-11-23 01:49 mem
drwxr-xr-x 2 root root 0 2005-11-23 01:50 misc
lrwxrwxrwx 1 root root 11 2005-11-23 03:50 mixer -> sound/mixer
crw-rw-rw- 1 root root 1, 3 2005-11-23 01:49 null
crw-rw-rw- 1 root root 195, 0 2005-11-23 03:50 nvidia0
crw-rw-rw- 1 root root 195, 255 2005-11-23 03:50 nvidiactl
crw-r----- 1 root kmem 1, 4 2005-11-23 01:49 port
lrwxrwxrwx 1 root root 10 2005-11-23 01:50 psaux -> misc/psaux
crw-rw-rw- 1 root tty 5, 2 2005-11-23 04:31 ptmx
drwxr-xr-x 2 root root 0 2005-11-23 01:49 pts
lrwxrwxrwx 1 root root 4 2005-11-23 01:50 ram0 -> rd/0
lrwxrwxrwx 1 root root 4 2005-11-23 01:50 ram1 -> rd/1
lrwxrwxrwx 1 root root 5 2005-11-23 01:50 ram10 -> rd/10
lrwxrwxrwx 1 root root 5 2005-11-23 01:50 ram11 -> rd/11
lrwxrwxrwx 1 root root 5 2005-11-23 01:50 ram12 -> rd/12
lrwxrwxrwx 1 root root 5 2005-11-23 01:50 ram13 -> rd/13
lrwxrwxrwx 1 root root 5 2005-11-23 01:50 ram14 -> rd/14
lrwxrwxrwx 1 root root 5 2005-11-23 01:50 ram15 -> rd/15
lrwxrwxrwx 1 root root 4 2005-11-23 01:50 ram2 -> rd/2
lrwxrwxrwx 1 root root 4 2005-11-23 01:50 ram3 -> rd/3
lrwxrwxrwx 1 root root 4 2005-11-23 01:50 ram4 -> rd/4
lrwxrwxrwx 1 root root 4 2005-11-23 01:50 ram5 -> rd/5
lrwxrwxrwx 1 root root 4 2005-11-23 01:50 ram6 -> rd/6
lrwxrwxrwx 1 root root 4 2005-11-23 01:50 ram7 -> rd/7
lrwxrwxrwx 1 root root 4 2005-11-23 01:50 ram8 -> rd/8
lrwxrwxrwx 1 root root 4 2005-11-23 01:50 ram9 -> rd/9
crw-rw-rw- 1 root root 1, 8 2005-11-23 01:49 random
drwxr-xr-x 2 root root 0 2005-11-23 01:50 rd
drwxrwxrwt 2 root root 40 2005-11-23 01:50 shm
drwxr-xr-x 2 root root 0 2005-11-23 03:50 snd
drwxr-xr-x 2 root root 0 2005-11-23 03:50 sound
lrwxrwxrwx 1 root root 15 2005-11-23 01:50 stderr -> /proc/self/fd/2
lrwxrwxrwx 1 root root 15 2005-11-23 01:50 stdin -> /proc/self/fd/0
lrwxrwxrwx 1 root root 15 2005-11-23 01:50 stdout -> /proc/self/fd/1
drwxr-xr-x 2 root root 0 2005-11-23 01:49 tts
crw-rw-rw- 1 root tty 5, 0 2005-11-23 01:49 tty
-rw-r--r-- 1 nbcjr tty 18 2005-11-23 03:50 tty1
-rw-r--r-- 1 root root 55 2005-11-23 03:50 tty7
lrwxrwxrwx 1 root root 5 2005-11-23 01:49 ttyS0 -> tts/0
lrwxrwxrwx 1 root root 5 2005-11-23 01:49 ttyS1 -> tts/1
lrwxrwxrwx 1 root root 5 2005-11-23 01:49 ttyS2 -> tts/2
lrwxrwxrwx 1 root root 5 2005-11-23 01:49 ttyS3 -> tts/3
cr--r--r-- 1 root root 1, 9 2005-11-23 01:49 urandom
drwxr-xr-x 2 root root 0 2005-11-23 01:49 vc
drwxr-xr-x 2 root root 0 2005-11-23 03:50 vcc
crw-rw-rw- 1 root root 1, 5 2005-11-23 01:49 zero
[root@universo nbcjr]# Offline
#3 2005-11-23 06:40:09
- nbcjr
- Member
- From: BRAZIL!
- Registered: 2004-12-04
- Posts: 79
Re: video4linux problem
^[[A[root@universo nbcjr]# dmesg|tail
Please try dxs_support=5 option
and report if it works on your machine.
For more details, read ALSA-Configuration.txt.
ACPI: PCI Interrupt 0000:00:11.5[C] -> GSI 22 (level, low) -> IRQ 18
PCI: Via IRQ fixup for 0000:00:11.5, from 5 to 2
PCI: Setting latency timer of device 0000:00:11.5 to 64
eth0: no IPv6 routers present
Linux video capture interface: v1.00
sn9c102: V4L2 driver for SN9C10x PC Camera Controllers v1:1.24a
usbcore: registered new driver sn9c102
[root@universo nbcjr]# wiki entry
http://wiki.archlinux.org/index.php/Web … up#sn9c102
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#4 2005-11-23 20:13:38
- nbcjr
- Member
- From: BRAZIL!
- Registered: 2004-12-04
- Posts: 79
Re: video4linux problem
if i use hotplug it will work, but not if i load the module manualy:
manually:
[root@universo movies]# lsmod
Module Size Used by
ntfs 202768 1
sn9c102 89228 0
videodev 8064 1 sn9c102
snd_via82xx 25408 1
gameport 12552 1 snd_via82xx
snd_ac97_codec 85116 1 snd_via82xx
snd_mpu401_uart 6656 1 snd_via82xx
snd_rawmidi 21408 1 snd_mpu401_uart
snd_seq_device 7436 1 snd_rawmidi
snd_pcm_oss 51104 0
snd_pcm 84868 3 snd_via82xx,snd_ac97_codec,snd_pcm_oss
snd_timer 22660 1 snd_pcm
snd_page_alloc 8840 2 snd_via82xx,snd_pcm
snd_mixer_oss 18432 1 snd_pcm_oss
snd 49380 11 snd_via82xx,snd_ac97_codec,snd_mpu401_uart,snd_ rawmidi,snd_seq_device,snd_pcm_oss,snd_pcm,snd_timer,snd_mixer_oss
soundcore 8032 1 snd
nvidia 3708264 12
agpgart 30160 1 nvidia
8139too 25216 0
mii 5248 1 8139too
usbcore 114300 2 sn9c102
nls_cp437 5760 1
vfat 11904 1
fat 48156 1 vfat
[root@universo movies]#
hotplug:
[root@universo nbcjr]# /etc/rc.d/hotplug start
:: Starting Hotplug Daemon [DONE]
[root@universo nbcjr]# lsmod
Module Size Used by
ohci_hcd 20100 0
parport_pc 26308 0
parport 33864 1 parport_pc
pcspkr 3680 0
rtc 10808 0
via_ircc 24724 0
irda 128568 1 via_ircc
crc_ccitt 2176 1 irda
ehci_hcd 32904 0
uhci_hcd 32144 0
8139cp 19456 0
shpchp 96388 0
pci_hotplug 27204 1 shpchp
via_agp 8192 1
tsdev 6336 0
evdev 7936 0
ntfs 202768 1
sn9c102 89228 0
videodev 8064 1 sn9c102
snd_via82xx 25408 1
gameport 12552 1 snd_via82xx
snd_ac97_codec 85116 1 snd_via82xx
snd_mpu401_uart 6656 1 snd_via82xx
snd_rawmidi 21408 1 snd_mpu401_uart
snd_seq_device 7436 1 snd_rawmidi
snd_pcm_oss 51104 0
snd_pcm 84868 3 snd_via82xx,snd_ac97_codec,snd_pcm_oss
snd_timer 22660 1 snd_pcm
snd_page_alloc 8840 2 snd_via82xx,snd_pcm
snd_mixer_oss 18432 1 snd_pcm_oss
snd 49380 11 snd_via82xx,snd_ac97_codec,snd_mpu401_uart,snd_rawmidi,snd_seq_device,snd_pcm_oss,snd_pcm,snd_timer,snd_mixer_oss
soundcore 8032 1 snd
nvidia 3708264 12
agpgart 30160 2 via_agp,nvidia
8139too 25216 0
mii 5248 2 8139cp,8139too
usbcore 114300 5 ohci_hcd,ehci_hcd,uhci_hcd,sn9c102
nls_cp437 5760 1
vfat 11904 1
fat 48156 1 vfat
[root@universo nbcjr]# Offline
#5 2005-12-04 22:02:29
- nbcjr
- Member
- From: BRAZIL!
- Registered: 2004-12-04
- Posts: 79
Re: video4linux problem
[nbcjr@universo ~]$ sudo hwdetect --show-modules
AGP : agpgart via-agp
USB : usb-storage usblp usbhid usbcore ehci-hcd uhci-hcd sn9c102
NET : 8139cp 8139too via-ircc mii ppp_generic slhc irda
SOUND : snd-mixer-oss snd-pcm-oss snd-seq-oss snd-seq-device snd-seq-midi-event snd-page-alloc snd-rawmidi snd-timer snd snd-mpu401-uart snd-ac97-codec snd-via82xx soundcore
VIDEO : videodev nvidia
OTHER : lp ppdev rtc i2c-viapro i2c-core evdev gameport pcspkr parport parport_pc pci_hotplug shpchp crc-ccitt
[nbcjr@universo ~]$ on my rc.conf
#
# Module to load at boot-up (in this order)
# (prefix a module with a ! to disable it)
#
MODULES=(!usbserial !ide-scsi 8139too nvidia snd-pcm-oss snd-via82xx sn9c102)
#sn9c102=camera;Offline
#6 2005-12-04 23:16:19
- nightfrost
- Member
- From: Sweden
- Registered: 2005-04-16
- Posts: 647
Re: video4linux problem
since it works with hotplug, you can be sure that it does work. Just compare the modules hotplug has loaded with the ones you have loaded when not using hotplug (judging from the above; hotplug loads more modules than you do manually). My guess would be to start with the relevant usb-modules (is this a usb device?).
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#7 2005-12-04 23:29:15
- nbcjr
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- Registered: 2004-12-04
- Posts: 79
Re: video4linux problem
nightfrost wrote:
since it works with hotplug, you can be sure that it does work. Just compare the modules hotplug has loaded with the ones you have loaded when not using hotplug (judging from the above; hotplug loads more modules than you do manually). My guess would be to start with the relevant usb-modules (is this a usb device?).
yes, it is usb. and the problem is exactly the one you said, but i don't know which usb modules to load... thanks a lot (and phrack too)
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#8 2005-12-04 23:42:38
- nightfrost
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- From: Sweden
- Registered: 2005-04-16
- Posts: 647
Re: video4linux problem
How about these? ;-)
nbcjr wrote:
USB : usb-storage usblp usbhid usbcore ehci-hcd uhci-hcd sn9c102
If you don't want all of them loaded, you might just have to go with a trial & error method. My bet would be that uhci-hcd is the most relevant one...
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#9 2005-12-09 04:36:38
- nbcjr
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- From: BRAZIL!
- Registered: 2004-12-04
- Posts: 79
Re: video4linux problem
thanks a lot, that did the trick!
now i have another problem on /dev/video0
[nbcjr@universo ~]$ sonic-snap-gui
Clock resolution is 4000250 nanoseconds
Cannot open '/dev/video0': 13, Permission deniedif i chmod it, then it works, but i have to do that at every reboot, which is anoying. how do i fix it?
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#10 2005-12-09 05:55:30
- Snowman
- Developer/Forum Fellow
- From: Montreal, Canada
- Registered: 2004-08-20
- Posts: 5,212
Re: video4linux problem
Add your user in the video group.
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