[SOLVED] UDEV problem ( or misunderstanding )

Pigi_102 · 12-30-2010, 12:43 PM

Hi all,
after upgrading to slackware 13.1 I'm trying to convert my old udev rules to new version, as I get a lot of warning about SYSFS or BUS that would disappear in a very near future.

I'm fighting at the moment with the rule for my ipod.
This one is perfectly working:

Code:

BUS=="scsi", SYSFS{vendor}=="Apple", KERNEL=="sd?1", NAME="%k" , SYMLINK+="ipod", RUN+="/etc/udev/scripts/mount-ipod.sh"

And this one ( with attributes corrected ) don't:

Code:

SUBSYSTEMS=="scsi", ATTRS{manufacturer}=="Apple Inc." , ATTRS{product}=="iPod" , KERNEL=="sd?1", SYMLINK+="ipod"

My intent is to get a /dev/ipod link to whatever /dev/sd*1 get created by usb subsystem.

What am I doing wrong ?
Is there some command to check how the rules get interpreted sequentially ?

Thanks in advance
Pigi

Pigi_102 · 12-30-2010, 03:33 PM

Problem found.

Somewhere I had read that the "vendor" attribute would not have been set with new interface but that is not true.
I changed

Code:

ATTRS{manufacturer}=="Apple Inc." , ATTRS{product}=="iPod" ,

with

Code:

ATTRS{vendor}=="Apple"

and it start to work again.

Pigi

catkin · 12-30-2010, 09:07 PM

If you know the name of the /dev/* file (there are other ways but this is the easiest) you can get the device attributes that can be used in a udev rule. For example:

Code:

udevadm info --attributes --path "$( udevadm info --query=path --name=/dev/sdc1 )"

To test rules, use udevadm test <devpath> for example:

Code:

udevadm test "$( udevadm info --query=path --name=/dev/sdc1 )"

To make udevd re-load rules:

Code:

udevadm control --reload-rules