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Subject[PATCH 3/5] HID: roccat: declaring 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>
---
drivers/hid/hid-roccat-kone.h | 3 +++
drivers/hid/hid-roccat-pyra.h | 3 +++
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)

--
1.7.2.3




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