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HID: roccat: declare meaning of pack pragma usage in driver headers

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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>
This commit is contained in:
Stefan Achatz 2010-11-26 19:57:36 +00:00 • committed by Jiri Kosina
parent 5012aada50
commit bd3a2b9663
2 changed files with 6 additions and 0 deletions

3
drivers/hid/hid-roccat-kone.h
View file

@ -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)

3
drivers/hid/hid-roccat-pyra.h
View file

@ -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)