diff options
| author | Tomas Winkler <tomas.winkler@intel.com> | 2015-07-26 09:54:22 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-08-03 17:30:00 -0700 |
| commit | 237092bf034a648611f61eb1f0965e9ba1b08871 (patch) | |
| tree | 64dec996bf6840cd2cdfcfbd51909015b64246df /drivers/misc/mei/client.c | |
| parent | 2c84c2970c1acf83827aa97ab0e6addc3d2aa960 (diff) | |
mei: implement fasync for event notification
A process can be informed about client notification also via
SIGIO with POLL_PRI event.
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc/mei/client.c')
| -rw-r--r-- | drivers/misc/mei/client.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c index d9396838774c..db2436aee2dc 100644 --- a/drivers/misc/mei/client.c +++ b/drivers/misc/mei/client.c @@ -1351,6 +1351,33 @@ out: } /** + * mei_cl_notify - raise notification + * + * @cl: host client + * + * Locking: called under "dev->device_lock" lock + */ +void mei_cl_notify(struct mei_cl *cl) +{ + struct mei_device *dev; + + if (!cl || !cl->dev) + return; + + dev = cl->dev; + + if (!cl->notify_en) + return; + + cl_dbg(dev, cl, "notify event"); + cl->notify_ev = true; + wake_up_interruptible_all(&cl->ev_wait); + + if (cl->ev_async) + kill_fasync(&cl->ev_async, SIGIO, POLL_PRI); +} + +/** * mei_cl_notify_get - get or wait for notification event * * @cl: host client |