* Removed obsolete "ident" parameter from devfs_publish_device().

* driver_entry::api_version now stores the actual version instead of a
  pointer to it.
* Renamed node_path_entry to path_entry and reused it for driver 
  reloading: handle_driver_events() will now also check for drivers to
  add in the sDriversToAdd list.
* Added new devfs_driver_added(), and devfs_driver_removed() functions
  that trigger certain driver actions.
* Implemented notifying devfs on B_ENTRY_CREATED, B_ENTRY_REMOVED, and
  B_ENTRY_MOVED events in probe.cpp. The watched directory inode numbers
  are now stored in a hash for B_ENTRY_MOVED.
* unpublish_driver() did not actually delete the node, it only marked
  it removable since we never get/put the node. We now do, and so the
  node is actually removed as intended.
* Added "devfs_driver" KDL command.
* Minor cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24152 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/kernel/fs/devfs.h

@@ -1,5 +1,5 @@
 /*
- * Copyright 2002-2007, Axel Dörfler, [email protected]. All rights reserved.
+ * Copyright 2002-2008, Axel Dörfler, [email protected]. All rights reserved.
  * Distributed under the terms of the MIT License.
  *
  * Copyright 2001-2002, Travis Geiselbrecht. All rights reserved.
@@ -22,6 +22,9 @@ void devfs_add_preloaded_drivers(struct kernel_args* args);
 
 status_t devfs_add_driver(const char *path);
 
+void devfs_driver_added(const char *path);
+void devfs_driver_removed(const char *path);
+
 status_t devfs_unpublish_file_device(const char *path);
 status_t devfs_publish_file_device(const char *path, const char *filePath);
 
@@ -29,7 +32,7 @@ status_t devfs_unpublish_partition(const char *path);
 status_t devfs_publish_partition(const char *path, const partition_info *info);
 
 status_t devfs_unpublish_device(const char *path, bool disconnect);
-status_t devfs_publish_device(const char *path, void *ident, device_hooks *calls);
+status_t devfs_publish_device(const char *path, device_hooks *calls);
 status_t devfs_publish_directory(const char *path);
 status_t devfs_rescan_driver(const char *driverName);