Hi!

> >>+What:		/sys/class/leds/<led>/add_blkdev
> >>+Date:		September 2021
> >>+Contact:	Ian Pilcher <arequipeno@gmail.com>
> >>+Description:
> >>+		Associate a block device with this LED by writing its kernel
> >>+		name (as shown in /sys/block) to this attribute.  Multiple
> >>+		device names may be written at once, separated by whitespace.
> >
> >This is seriously strange interface.
> 
> It's the netdev-like interface that Marek described in an earlier note
> (adapted for the fact that the trigger supports many-to-many
> relationships).
> 
> >If you have directory with symlinks, why not use symlink() syscall
> >instead of add_blkdev, and unlink() syscall instead of delete_blkdev?
> 
> I'd actually had that thought as well, but I didn't see any obvious way
> to do that in sysfs when I looked.  If you know how to do it or know of
> an example, please let me know.

We got Greg in the Cc list, he'd be right person to talk to...

> If using symlink()/unlink() isn't an option, do you have a suggestion
> for a less seriously strange interface?

Let us explore this possibility, first.

Best regards,
								Pavel

-- 
http://www.livejournal.com/~pavelmachek