On 05/12/2013 04:21 PM, Denys Vlasenko wrote:
On Sunday 12 May 2013 16:19, Denys Vlasenko wrote:
From $DEVNAMEs I saw it looks like using it makes sense:
kernel already tells us the subdir, no need to code it up
in the rules.
If so, then mdev -s needs a way to support this, somehow to get the
snd/X, if that's not possible, I would highly suggest to basename $MDEV.
Looks like getting snd/X is not possible
Other, ugly but possible workaround would be for me to put a thingy in
catch-all script to check if $MDEV contain slash (and since it hit
catch-all it wasn't handled), if it does, then basename it, export MDEV,
DEVPATH etc and exec /sbin/mdev. Sounds better than in-mdev basenaming it?
Hey Denys, any news or comment on this? I'd like to roll out new mdev on
some of my deployments however I don't want do any workaround like
described above if thats not desired solution to this very issue.
I don't know.
I don't want to ignore $DEVNAME. Its information is too useful.
Maybe we need to teach kernel to export DEVNAME in sysfs.
I spoke too soon! It is available:
# cat /sys/devices/pci0000:00/0000:00:07.0/sound/card0/controlC0/uevent
MAJOR=116
MINOR=7
DEVNAME=snd/controlC0
^^^^^^^^^^^^^^^^^^^^^
and I even have a patch...
so all we need is mdev -s support for the DEVNAME from uevent and it
should be all right.
-- Piotr.
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