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>
git-mirror · Jan 8, 2011 · bd3a2b9 · bd3a2b9
1 parent 5012aad
commit bd3a2b9
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diff --git 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
@@ -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)