ERROR IN LOGFILE

DISCUSSION Sasa Ostrouska 2 participants 4 messages Nov 25, 2004

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Sasa Ostrouska

author

2004-11-25 10:19 UTC #0 lore raw

Hi to all of you !!

I played today with my quickcam and saw the following message in the /var/log/messages
I use slackware-current and I would like to know more about that. Can somebody explain me how can I get rid of that error message ?

Nov 25 11:14:00 localhost kernel: usb 2-1: new full speed USB device
using address 3
Nov 25 11:14:00 localhost kernel: Linux video capture interface: v1.00
Nov 25 11:14:00 localhost kernel: quickcam: QuickCam USB camera found
(driver version QuickCam USB $Date: 2004/07/29 18:12:39 $)
Nov 25 11:14:00 localhost kernel: quickcam: Kernel:2.6.9 bus:2 class:FF
subclass:FF vendor:046D product:0850
Nov 25 11:14:00 localhost kernel: quickcam: Sensor VV6410 detected
Nov 25 11:14:00 localhost kernel: quickcam: Registered
device: /dev/video0
Nov 25 11:14:00 localhost kernel: usbcore: registered new driver
quickcam
Nov 25 11:14:01 localhost kernel: usbcore: registered new driver
snd-usb-audio
Nov 25 11:14:01 localhost kernel: usbcore: registered new driver audio
Nov 25 11:14:01 localhost kernel: drivers/usb/class/audio.c: v1.0.0:USB
Audio Class driver
Nov 25 11:14:05 localhost wait_for_sysfs[5761]: either wait_for_sysfs

(udev 042) needs an update to handle the device '/class/video4linux/video0' properly (no device symlink) or the sysfs-support of your device's driver needs to be fixed, please report to <[email protected]>

Nov 25 11:14:05 localhost udev[5886]: configured rule in
'/etc/udev/rules.d/udev.rules' at line 104 applied, added symlink 'video
%n'
Nov 25 11:14:05 localhost udev[5886]: configured rule in
'/etc/udev/rules.d/udev.rules' at line 104 applied, 'video0' becomes
'v4l/video%n'
Nov 25 11:14:05 localhost udev[5886]: creating device node
'/dev/v4l/video0'
Nov 25 11:14:05 localhost udev[5888]: configured rule in
'/etc/udev/rules.d/udev.rules' at line 30 applied, 'controlC2' becomes
'snd/%k'
Nov 25 11:14:05 localhost udev[5888]: creating device node
'/dev/snd/controlC2'
Nov 25 11:14:05 localhost udev[5891]: configured rule in
'/etc/udev/rules.d/udev.rules' at line 86 applied, added symlink '%k'
Nov 25 11:14:05 localhost udev[5891]: configured rule in
'/etc/udev/rules.d/udev.rules' at line 86 applied, 'dsp2' becomes
'sound/%k'
Nov 25 11:14:05 localhost udev[5891]: creating device node
'/dev/sound/dsp2'
Nov 25 11:14:05 localhost udev[5893]: configured rule in
'/etc/udev/rules.d/udev.rules' at line 84 applied, added symlink '%k'
Nov 25 11:14:05 localhost udev[5893]: configured rule in
'/etc/udev/rules.d/udev.rules' at line 84 applied, 'audio2' becomes
'sound/%k'
Nov 25 11:14:05 localhost udev[5893]: creating device node
'/dev/sound/audio2'
Nov 25 11:14:05 localhost udev[5894]: configured rule in
'/etc/udev/rules.d/udev.rules' at line 88 applied, added symlink '%k'
Nov 25 11:14:05 localhost udev[5890]: configured rule in
'/etc/udev/rules.d/udev.rules' at line 32 applied, 'pcmC2D0c' becomes
'snd/%k'
Nov 25 11:14:05 localhost udev[5894]: configured rule in
'/etc/udev/rules.d/udev.rules' at line 88 applied, 'mixer2' becomes
'sound/%k'
Nov 25 11:14:05 localhost udev[5890]: creating device node
'/dev/snd/pcmC2D0c'
Nov 25 11:14:05 localhost udev[5894]: creating device node

'/dev/sound/mixer2'

Please CC me as I'm not on the list.
Best regards

Signature · 13 lines

Sasa Ostrouska <[email protected]>



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Kay Sievers

2004-11-25 16:10 UTC #1 lore raw

Quoted 7 lines · Sasa Ostrouska

Hi to all of you !!
I played today with my quickcam and saw the following message in the /var/log/messages
I use slackware-current and I would like to know more about that. Can somebody explain me how can I get rid of that error message ?

Quoted 5 lines

Nov 25 11:14:05 localhost wait_for_sysfs[5761]: either wait_for_sysfs
(udev 042) needs an update to handle the device '/class/video4linux/video0' properly (no device symlink) or the sysfs-support of your device's driver needs to be fixed, please report to <[email protected]>

It's cause the driver of your camera does not create a link in sysfs to the physical device behind the videodevice. This is needed for modern hardware integration or udev's BUS= matches.

How does "ls -l /sys/class/video4linux/video0" look like?

What's the name of the module? Is it in the stock kernel?

Kay

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Sasa Ostrouska

author

2004-11-25 16:47 UTC #2 lore raw

In reply to Sasa Ostrouska

Quoted 14 lines · Kay Sievers

Quoted 7 lines · Sasa Ostrouska
Hi to all of you !!
I played today with my quickcam and saw the following message in the /var/log/messages
I use slackware-current and I would like to know more about that. Can somebody explain me how can I get rid of that error message ?
Quoted 5 lines
Nov 25 11:14:05 localhost wait_for_sysfs[5761]: either wait_for_sysfs
(udev 042) needs an update to handle the device '/class/video4linux/video0' properly (no device symlink) or the sysfs-support of your device's driver needs to be fixed, please report to <[email protected]>

Quoted 6 lines

It's cause the driver of your camera does not create a link in sysfs to the physical device behind the videodevice. This is needed for modern hardware integration or udev's BUS= matches.
How does "ls -l /sys/class/video4linux/video0" look like?

root@rc-vaio:/home/sasa# ls -l /sys/class/video4linux/video0/
total 0
-r--r--r--  1 root root 4096 2004-11-25 17:44 dev
-r--r--r--  1 root root 4096 2004-11-25 17:44 name
root@rc-vaio:/home/sasa#

Quoted 2 lines

What's the name of the module? Is it in the stock kernel?

The name of the module is quickcam and it is not in the stock kernel. I compiled it from source.

Quoted 3 lines

Kay

If you need additional info let me know.
Rgds

Signature · 13 lines

Sasa Ostrouska <[email protected]>



-------------------------------------------------------
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Discover which products truly live up to the hype. Start reading now. 
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Kay Sievers

2004-11-25 17:13 UTC #3 lore raw

In reply to Sasa Ostrouska

Quoted 28 lines · Sasa Ostrouska

Quoted 14 lines · Kay Sievers
Quoted 7 lines · Sasa Ostrouska
Hi to all of you !!
I played today with my quickcam and saw the following message in the /var/log/messages
I use slackware-current and I would like to know more about that. Can somebody explain me how can I get rid of that error message ?
Quoted 5 lines
Nov 25 11:14:05 localhost wait_for_sysfs[5761]: either wait_for_sysfs
(udev 042) needs an update to handle the device '/class/video4linux/video0' properly (no device symlink) or the sysfs-support of your device's driver needs to be fixed, please report to <[email protected]>
Quoted 6 lines
It's cause the driver of your camera does not create a link in sysfs to the physical device behind the videodevice. This is needed for modern hardware integration or udev's BUS= matches.
How does "ls -l /sys/class/video4linux/video0" look like?
root@rc-vaio:/home/sasa# ls -l /sys/class/video4linux/video0/
total 0
(quoted diff) +0 -2
-r--r--r--  1 root root 4096 2004-11-25 17:44 dev
-r--r--r--  1 root root 4096 2004-11-25 17:44 name
root@rc-vaio:/home/sasa#

Quoted 4 lines

Quoted 2 lines
What's the name of the module? Is it in the stock kernel?
The name of the module is quickcam and it is not in the stock kernel. I compiled it from source.

You may bug the author of the driver to pass the physical device to the driver core to get the links automatically created at the videodevice registration.

As an example, for my ov511 usb-webcam it looks like this:

[kay@pim ~]$ tree /sys/class/video4linux/video0/ /sys/class/video4linux/video0/

  |-- bridge
  |-- brightness
  |-- contrast
  |-- custom_id
  |-- dev
  |-- device -> ../../../devices/pci0000:00/0000:00:1d.1/usb3/3-1
  |-- driver -> ../../../bus/usb/drivers/usb
  |-- exposure
  |-- hue
  |-- model
  |-- name
  |-- saturation

`-- sensor

Good luck,
Kay