On 7/30/06, Vojtech Pavlik <[email protected]> wrote:
On Sun, Jul 30, 2006 at 12:52:52PM +0300, Shem Multinymous wrote:
> Coming to think of it, to solve the dev->sys direction, maybe we
> should have symlinks like the following?
> /sys/dev/8/0 -> /sys/block/sda
> /sys/dev/11/0 -> /sys/block/sr0
> /sys/dev/116/24 -> /sys/class/sound/pcmC0D0c
Since you can have more nodes in /dev with the same node numbers, and
this actually is useful (for granting more users/groups access to the
devices in question), this is not going to fly.
No, I'm talking about the *other* direction now: I'm looking at a file
in /dev and I want to find the corresponding sysfs device (if any).
Anyway turns out that sysfs dev numbers are not unique either -- some
devices with major=1 apper twice in sysfs. To give a random example:
$ cat /sys/block/ram8/dev /sys/class/mem/random/dev
1:8
1:8
And these aren't symlinks.
Shem
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