tree 82f1f81a84cc473440ea22a89072fffc420c170f
parent 1ffc12be5549085faac2d6116f666cb9cbcb2930
author Greg Kroah-Hartman <gregkh@google.com> 1428947317 +0200
committer Greg Kroah-Hartman <gregkh@google.com> 1429279969 +0200

greybus: bundle: add state sysfs file

A bundle has a state file, that is managed by the endo userspace
process.  This file can be written to and any process that is polling on
the file will be woken up and can read the new value.  It's a "cheap"
IPC for programs that are not allowed to do anything other than
read/write to kernel sysfs files.

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>