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authorAxel Lin <axel.lin@gmail.com>2012-04-03 23:50:15 -0700
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2012-04-04 09:25:42 -0700
commitfa7f86d157781515b74d658120552eafd890f4de (patch)
treec8df732db0ec59dc7756f3626eb928eb757b78c5 /include/linux
parentae584ca473289377dd7fd8c61439db4bfab5489a (diff)
Input: serio - add helper macro for serio_driver boilerplate
This patch introduces the module_serio_driver macro which is a convenience macro for serio driver modules similar to module_platform_driver. It is intended to be used by drivers which init/exit section does nothing but registers/unregisters the serio driver. By using this macro it is possible to eliminate a few lines of boilerplate code per serio driver. Based on work done by Lars-Peter Clausen <lars@metafoo.de> for other buses (i2c and spi). Signed-off-by: Axel Lin <axel.lin@gmail.com> Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/serio.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/serio.h b/include/linux/serio.h
index ca82861b0e46..6d6cfd3e94a3 100644
--- a/include/linux/serio.h
+++ b/include/linux/serio.h
@@ -96,6 +96,19 @@ int __must_check __serio_register_driver(struct serio_driver *drv,
void serio_unregister_driver(struct serio_driver *drv);
+/**
+ * module_serio_driver() - Helper macro for registering a serio driver
+ * @__serio_driver: serio_driver struct
+ *
+ * Helper macro for serio drivers which do not do anything special in
+ * module init/exit. This eliminates a lot of boilerplate. Each module
+ * may only use this macro once, and calling it replaces module_init()
+ * and module_exit().
+ */
+#define module_serio_driver(__serio_driver) \
+ module_driver(__serio_driver, serio_register_driver, \
+ serio_unregister_driver)
+
static inline int serio_write(struct serio *serio, unsigned char data)
{
if (serio->write)