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authorMark McLoughlin <markmc@redhat.com>2008-12-15 07:58:26 -0500
committerGreg Kroah-Hartman <gregkh@suse.de>2009-01-06 13:44:33 -0500
commit0aa0dc41bfd993491c2344870eee7a3b218551fb (patch)
treebf0896c7e0bb9f5b7e6253fc15c8846b6f188d08 /include
parent7232800ba8aca1c070d43a81cc49991f230b5da1 (diff)
driver core: add root_device_register()
Add support for allocating root device objects which group device objects under /sys/devices directories. Also add a sysfs 'module' symlink which points to the owner of the root device object. This symlink will be used in virtio to allow userspace to determine which virtio bus implementation a given device is associated with. [Includes suggestions from Cornelia Huck] Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include')
-rw-r--r--include/linux/device.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/device.h b/include/linux/device.h
index b97a0cf1eb05..7d9da4b4993f 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -483,6 +483,17 @@ extern int device_rename(struct device *dev, char *new_name);
483extern int device_move(struct device *dev, struct device *new_parent); 483extern int device_move(struct device *dev, struct device *new_parent);
484 484
485/* 485/*
486 * Root device objects for grouping under /sys/devices
487 */
488extern struct device *__root_device_register(const char *name,
489 struct module *owner);
490static inline struct device *root_device_register(const char *name)
491{
492 return __root_device_register(name, THIS_MODULE);
493}
494extern void root_device_unregister(struct device *root);
495
496/*
486 * Manual binding of a device to driver. See drivers/base/bus.c 497 * Manual binding of a device to driver. See drivers/base/bus.c
487 * for information on use. 498 * for information on use.
488 */ 499 */