[Bug 10131] New: acpid should monitor /sys/class/input for new devices

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=10131

            Bug ID: 10131
           Summary: acpid should monitor /sys/class/input for new devices
           Product: Busybox
           Version: unspecified
          Hardware: All
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P5
         Component: Other
          Assignee: unassigned at busybox.net
          Reporter: clayton at craftyguy.net
                CC: busybox-cvs at busybox.net
  Target Milestone: ---

Currently, acpid will read in /sys/class/input/eventX devices on startup and
will not detect any new ones. This is problematic for two reasons:

1) If a new input device is added and the user wants to manage events from it
with acpid, they would have to restart acpid (they may not always have the
privileges required for this)

2) I have a device which, for one reason or another, actually starts acpid
before the kernel has finished modprobing/enabling input devices, so quite a
few buttons/switches events are never handled by acpid unless acpid is
restarted.


On the busybox mailing list, it was suggested that using inotify might be one
option, since big acpid apparently uses it. I wrote a patch that basically
polls for new devices in the existing main loop in acpid, but I haven't been
able to test it for completely unrelated-to-busybox reasons.. so I'm refraining
from sharing it here unless there is interest.

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