Messages in this thread Patch in this message | | | Date | Thu, 15 Sep 2005 01:45:56 -0500 | From | Dmitry Torokhov <> |
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Greg KH <gregkh@suse.de>, Kay Sievers <kay.sievers@vrfy.org>, Vojtech Pavlik <vojtech@suse.cz>, Hannes Reinecke <hare@suse.de> Subject: [patch 04/28] Driver core: make parent class define subsystem Content-Disposition: inline; filename=parent-class-defines-subsystem.patch Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit
Driver core: make parent class define subsystem for its children
When there is a hierarchy of classes make parent class define subsystem as reported in hotplug notifications. The full class path is reported in a new CLASS environment variable.
Signed-off-by: Dmitry Torokhov <dtor@mail.ru> ---
drivers/base/class.c | 14 ++++++++++++-- 1 files changed, 12 insertions(+), 2 deletions(-)
Index: work/drivers/base/class.c =================================================================== --- work.orig/drivers/base/class.c +++ work/drivers/base/class.c @@ -337,25 +337,35 @@ static int class_hotplug_filter(struct k static const char *class_hotplug_name(struct kset *kset, struct kobject *kobj) { struct class_device *class_dev = to_class_dev(kobj); + struct class *class = class_dev->class; - return class_dev->class->name; + while (class->parent) + class = class->parent; + + return class->name; } static int class_hotplug(struct kset *kset, struct kobject *kobj, char **envp, int num_envp, char *buffer, int buffer_size) { struct class_device *class_dev = to_class_dev(kobj); + const char *path; int i = 0; int length = 0; int retval = 0; pr_debug("%s - name = %s\n", __FUNCTION__, class_dev->class_id); + path = kobject_get_path(&class_dev->class->subsys.kset.kobj, GFP_KERNEL); + add_hotplug_env_var(envp, num_envp, &i, buffer, buffer_size, + &length, "CLASS=%s", path); + kfree(path); + if (class_dev->dev) { /* add physical device, backing this device */ struct device *dev = class_dev->dev; - char *path = kobject_get_path(&dev->kobj, GFP_KERNEL); + path = kobject_get_path(&dev->kobj, GFP_KERNEL); add_hotplug_env_var(envp, num_envp, &i, buffer, buffer_size, &length, "PHYSDEVPATH=%s", path); kfree(path); - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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