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authorDavid Herrmann <dh.herrmann@googlemail.com>2012-06-10 17:16:22 +0400
committerJiri Kosina <jkosina@suse.cz>2012-06-18 15:42:02 +0400
commite7191474a5459e6ba7039fadca6a32f3a5731909 (patch)
tree004e573b35323ae0b92907334a4ef12e4aed4fe2 /include/linux/uhid.h
parentec4b7dea453e0f9fd0fbf1761b2d01eff64f264b (diff)
downloadlinux-e7191474a5459e6ba7039fadca6a32f3a5731909.tar.xz
HID: uhid: forward open/close events to user-space
HID core notifies us with *_open/*_close callbacks when there is an actual user of our device. We forward these to user-space so they can react on this. This allows user-space to skip I/O unless they receive an OPEN event. When they receive a CLOSE event they can stop I/O again to save energy. Signed-off-by: David Herrmann <dh.herrmann@googlemail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'include/linux/uhid.h')
-rw-r--r--include/linux/uhid.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/uhid.h b/include/linux/uhid.h
index f8ce6f7571d8..351650b7a0f6 100644
--- a/include/linux/uhid.h
+++ b/include/linux/uhid.h
@@ -27,6 +27,8 @@ enum uhid_event_type {
UHID_DESTROY,
UHID_START,
UHID_STOP,
+ UHID_OPEN,
+ UHID_CLOSE,
UHID_INPUT,
};