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authorStefan Achatz <erazor_de@users.sourceforge.net>2010-11-26 19:57:36 +0000
committerJiri Kosina <jkosina@suse.cz>2011-01-08 01:11:24 +0100
commitbd3a2b96631dd86b06dca96aef00790084a11e15 (patch)
treec9bd056bfcf5d227ccb6c772f6cd7abc9d7b6a33 /drivers/hid
parent5012aada506cb8b570e46579077c0ec5b82ebd5d (diff)
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op-kernel-dev-bd3a2b96631dd86b06dca96aef00790084a11e15.tar.gz
HID: roccat: declare meaning of pack pragma usage in driver headers
Using pack pragma to prevent padding bytes in binary data structures used for hardware communication. Explanation of these pragmas was requested. Signed-off-by: Stefan Achatz <erazor_de@users.sourceforge.net> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid')
-rw-r--r--drivers/hid/hid-roccat-kone.h3
-rw-r--r--drivers/hid/hid-roccat-pyra.h3
2 files changed, 6 insertions, 0 deletions
diff --git a/drivers/hid/hid-roccat-kone.h b/drivers/hid/hid-roccat-kone.h
index 130d656..11203a7 100644
--- a/drivers/hid/hid-roccat-kone.h
+++ b/drivers/hid/hid-roccat-kone.h
@@ -14,6 +14,9 @@
#include <linux/types.h>
+/*
+ * Binary data structures used for hardware communication must have no padding.
+ */
#pragma pack(push)
#pragma pack(1)
diff --git a/drivers/hid/hid-roccat-pyra.h b/drivers/hid/hid-roccat-pyra.h
index 22f80a8..ac5996e 100644
--- a/drivers/hid/hid-roccat-pyra.h
+++ b/drivers/hid/hid-roccat-pyra.h
@@ -14,6 +14,9 @@
#include <linux/types.h>
+/*
+ * Binary data structures used for hardware communication must have no padding.
+ */
#pragma pack(push)
#pragma pack(1)
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