udev doesn't set group owner and permissions on Canon PowerShot S80

udev doesn't set group owner and permissions on Canon PowerShot S80

[Philippe Gramoullé]

 Hello,

Since a few udev release (well since few Debian upgrades as well :)), i can't have the correct
group owner and permissions set right anymore, when i power on my Canon PowerShot S80 camera (04a9/30fa).

It used to work fine, after i changed the rules.d/025_libgphoto2.rules file to have the correct
IDs.

Now, when i power the camera on, i have this:

UEVENT[1146185703.616764] add@/devices/pci0000:00/0000:00:1f.4/usb2/2-1
UDEV  [1146185703.616881] add@/devices/pci0000:00/0000:00:1f.4/usb2/2-1
UEVENT[1146185703.620711] add@/devices/pci0000:00/0000:00:1f.4/usb2/2-1/2-1:1.0
UDEV  [1146185703.651882] add@/devices/pci0000:00/0000:00:1f.4/usb2/2-1/2-1:1.0

According to the following rule:

# Canon PowerShot S80 (normal mode)
SYSFS{idVendor}="04a9", SYSFS{idProduct}="30fa", MODE="0660", GROUP="camera"

i would expect to have :

# ls -l /proc/bus/usb/002/
total 0
-rw-r--r-- 1 root root 43 Apr 26 12:24 001
-rw-rw-r-- 1 root camera 57 Apr 28 02:58 009

Instead, i have

# ls -l /proc/bus/usb/002/
total 0
-rw-r--r-- 1 root root 43 Apr 26 12:24 001
-rw-r--r-- 1 root root 57 Apr 28 02:58 009


Thanks to let me know what did i miss

Philippe

Debian Sid, Udev 0.91-1, Kernel 2.6.13.1


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Re: udev doesn't set group owner and permissions on Canon PowerShot S80 camera

[Greg KH]

On Fri, Apr 28, 2006 at 03:34:06AM +0200, Philippe Gramoull? wrote:
> 
>  Hello,
> 
> Since a few udev release (well since few Debian upgrades as well :)), i can't have the correct
> group owner and permissions set right anymore, when i power on my Canon PowerShot S80 camera (04a9/30fa).
> 
> It used to work fine, after i changed the rules.d/025_libgphoto2.rules file to have the correct
> IDs.
> 
> Now, when i power the camera on, i have this:
> 
> UEVENT[1146185703.616764] add@/devices/pci0000:00/0000:00:1f.4/usb2/2-1
> UDEV  [1146185703.616881] add@/devices/pci0000:00/0000:00:1f.4/usb2/2-1
> UEVENT[1146185703.620711] add@/devices/pci0000:00/0000:00:1f.4/usb2/2-1/2-1:1.0
> UDEV  [1146185703.651882] add@/devices/pci0000:00/0000:00:1f.4/usb2/2-1/2-1:1.0
> 
> According to the following rule:
> 
> # Canon PowerShot S80 (normal mode)
> SYSFS{idVendor}="04a9", SYSFS{idProduct}="30fa", MODE="0660", GROUP="camera"
> 
> i would expect to have :
> 
> # ls -l /proc/bus/usb/002/

Woah.  /proc/bus/usb/ is usbfs and has nothing to do with udev.

I think you need to look at /dev/bus/usb/ which should have the proper
permissions on it.

If in doubt, run udevtest on the device to see where it shows up.

Hope this helps,

greg k-h


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Re: udev doesn't set group owner and permissions on Canon PowerShot S80 camera

[Kay Sievers]

On Fri, Apr 28, 2006 at 03:34:06AM +0200, Philippe Gramoullé wrote:
> Since a few udev release (well since few Debian upgrades as well :)), i can't have the correct
> group owner and permissions set right anymore, when i power on my Canon PowerShot S80 camera (04a9/30fa).
> 
> It used to work fine, after i changed the rules.d/025_libgphoto2.rules file to have the correct
> IDs.
> 
> Now, when i power the camera on, i have this:
> 
> UEVENT[1146185703.616764] add@/devices/pci0000:00/0000:00:1f.4/usb2/2-1
> UDEV  [1146185703.616881] add@/devices/pci0000:00/0000:00:1f.4/usb2/2-1
> UEVENT[1146185703.620711] add@/devices/pci0000:00/0000:00:1f.4/usb2/2-1/2-1:1.0
> UDEV  [1146185703.651882] add@/devices/pci0000:00/0000:00:1f.4/usb2/2-1/2-1:1.0
> 
> According to the following rule:
> 
> # Canon PowerShot S80 (normal mode)
> SYSFS{idVendor}="04a9", SYSFS{idProduct}="30fa", MODE="0660", GROUP="camera"
> 
> i would expect to have :
> 
> # ls -l /proc/bus/usb/002/
> total 0
> -rw-r--r-- 1 root root 43 Apr 26 12:24 001
> -rw-rw-r-- 1 root camera 57 Apr 28 02:58 009
> 
> Instead, i have
> 
> # ls -l /proc/bus/usb/002/
> total 0
> -rw-r--r-- 1 root root 43 Apr 26 12:24 001
> -rw-r--r-- 1 root root 57 Apr 28 02:58 009
> 
> 
> Thanks to let me know what did i miss
> 
> Philippe
> 
> Debian Sid, Udev 0.91-1, Kernel 2.6.13.1

Why are you running such an old kernel with the latest udev?

The usb device nodes have changed to real nodes in the meantime and
the proc interface is deprecated. GROUP assignments never worked
for proc nodes and udev never cared about his. Something else may have
changed the ownership in the past which stopped doing it, but it's not
udev.

It's not likely that someone here has an idea how to help with such
a setup.

Kay


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Re: udev doesn't set group owner and permissions on Canon PowerShot

[Philippe Gramoullé]

Hello,

On Fri, 28 Apr 2006 05:31:35 +0200
Kay Sievers <kay.sievers@vrfy.org> wrote:

  | Why are you running such an old kernel with the latest udev?
  | 
  | The usb device nodes have changed to real nodes in the meantime and
  | the proc interface is deprecated. GROUP assignments never worked
  | for proc nodes and udev never cared about his. Something else may have
  | changed the ownership in the past which stopped doing it, but it's not
  | udev.

Thanks for the hint and sorry for the noise. I upgraded to 2.6.16.11 and all is
fine again.

Truly yours,

Philippe


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