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>

diff --git a/drivers/hid/hid-roccat-kone.h b/drivers/hid/hid-roccat-kone.h
index 130d6566ea8269e1c51a0bd604fda7378e315474..11203a75b0f9983cd69df1e79e084c3070a65b3e 100644 (file)
--- 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 22f80a8f26f9e56ea314faa8379f4653fcb6aae6..ac5996e8817ceed8308b296e6e6477d68e2fb35b 100644 (file)
--- 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)