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authorKay Sievers <kay.sievers@novell.com>2006-10-07 21:54:55 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2007-02-07 10:37:13 -0800
commit239378f16aa1ab5c502e42a06359d2de4f88ebb4 (patch)
tree5d9cee0ef7706f93c3bb07cd1b0295b578a6f0e1 /drivers/base
parentbf0acc330229554c695e4f95e5aa2d2c4f12de1f (diff)
Driver core: add uevent vars for devices of a class
Devices converted from class_device to device should have the same uevent keys as the original class_device had. We search up the parents until we find the first bus device and add the (already deprecated) PHYDEV* values. Signed-off-by: Kay Sievers <kay.sievers@novell.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/base')
-rw-r--r--drivers/base/core.c46
1 files changed, 34 insertions, 12 deletions
diff --git a/drivers/base/core.c b/drivers/base/core.c
index 6fee3e6b1ac..7a5336f7df8 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -154,25 +154,47 @@ static int dev_uevent(struct kset *kset, struct kobject *kobj, char **envp,
"MINOR=%u", MINOR(dev->devt));
}
-#ifdef CONFIG_SYSFS_DEPRECATED
- /* add bus name (same as SUBSYSTEM, deprecated) */
- if (dev->bus)
- add_uevent_var(envp, num_envp, &i,
- buffer, buffer_size, &length,
- "PHYSDEVBUS=%s", dev->bus->name);
-#endif
-
- /* add driver name (PHYSDEV* values are deprecated)*/
- if (dev->driver) {
+ if (dev->driver)
add_uevent_var(envp, num_envp, &i,
buffer, buffer_size, &length,
"DRIVER=%s", dev->driver->name);
+
#ifdef CONFIG_SYSFS_DEPRECATED
+ if (dev->class) {
+ struct device *parent = dev->parent;
+
+ /* find first bus device in parent chain */
+ while (parent && !parent->bus)
+ parent = parent->parent;
+ if (parent && parent->bus) {
+ const char *path;
+
+ path = kobject_get_path(&parent->kobj, GFP_KERNEL);
+ add_uevent_var(envp, num_envp, &i,
+ buffer, buffer_size, &length,
+ "PHYSDEVPATH=%s", path);
+ kfree(path);
+
+ add_uevent_var(envp, num_envp, &i,
+ buffer, buffer_size, &length,
+ "PHYSDEVBUS=%s", parent->bus->name);
+
+ if (parent->driver)
+ add_uevent_var(envp, num_envp, &i,
+ buffer, buffer_size, &length,
+ "PHYSDEVDRIVER=%s", parent->driver->name);
+ }
+ } else if (dev->bus) {
add_uevent_var(envp, num_envp, &i,
buffer, buffer_size, &length,
- "PHYSDEVDRIVER=%s", dev->driver->name);
-#endif
+ "PHYSDEVBUS=%s", dev->bus->name);
+
+ if (dev->driver)
+ add_uevent_var(envp, num_envp, &i,
+ buffer, buffer_size, &length,
+ "PHYSDEVDRIVER=%s", dev->driver->name);
}
+#endif
/* terminate, set to next free slot, shrink available space */
envp[i] = NULL;