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| author |   Stefan Achatz <erazor_de@users.sourceforge.net> | 2010-11-26 19:57:36 +0000 |
|---|---|---|
| committer |   Jiri Kosina <jkosina@suse.cz> | 2011-01-08 01:11:24 +0100 |
| commit | bd3a2b96631dd86b06dca96aef00790084a11e15 (patch) | |
| tree | c9bd056bfcf5d227ccb6c772f6cd7abc9d7b6a33 /drivers/hid/hid-roccat-pyra.h | |
| parent | HID: roccat: use class for char device for sysfs attribute creation (diff) | |
| download | wireguard-linux-bd3a2b96631dd86b06dca96aef00790084a11e15.tar.xz wireguard-linux-bd3a2b96631dd86b06dca96aef00790084a11e15.zip | |
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/hid-roccat-pyra.h')
| -rw-r--r-- | drivers/hid/hid-roccat-pyra.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/hid/hid-roccat-pyra.h b/drivers/hid/hid-roccat-pyra.h index 22f80a8f26f9..ac5996e8817c 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) |