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Subject[PATCH 1/3] HID: introduce helper for hid_driver boilerplate
Date
Introduce the module_hid_driver macro which is a convenience macro
for HID driver modules similar to module_usb_driver. It is intended
to be used by drivers with init/exit sections that do nothing but
register/unregister the HID driver.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Jiri Kosina <jkosina@suse.cz>
---
include/linux/hid.h | 12 ++++++++++++
1 file changed, 12 insertions(+)

diff --git a/include/linux/hid.h b/include/linux/hid.h
index 7330a0f..d6c71a6 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -700,6 +700,18 @@ extern int __must_check __hid_register_driver(struct hid_driver *,

extern void hid_unregister_driver(struct hid_driver *);

+/**
+ * module_hid_driver() - Helper macro for registering a HID driver
+ * @__hid_driver: hid_driver struct
+ *
+ * Helper macro for HID 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_hid_driver(__hid_driver) \
+ module_driver(__hid_driver, hid_register_driver, \
+ hid_unregister_driver)
+
extern void hidinput_hid_event(struct hid_device *, struct hid_field *, struct hid_usage *, __s32);
extern void hidinput_report_event(struct hid_device *hid, struct hid_report *report);
extern int hidinput_connect(struct hid_device *hid, unsigned int force);
--
1.8.0.2


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