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authorH Hartley Sweeten <hartleys@visionengravers.com>2012-12-17 15:26:55 -0700
committerJiri Kosina <jkosina@suse.cz>2013-01-03 10:27:30 +0100
commit4d02c58eb1f19433cb852b2bde41c44849691614 (patch)
tree6f55ec250be450aac2ef9ccbe250ea2f6bb991dd /include/linux/hid.h
parentfd62c5450324af7f6cc12897b09b77285cd48a92 (diff)
HID: introduce helper for hid_driver boilerplate
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> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'include/linux/hid.h')
-rw-r--r--include/linux/hid.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/hid.h b/include/linux/hid.h
index 7330a0fef0c0..d6c71a674310 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);