diff options
Diffstat (limited to 'drivers/usb/core/usb.c')
| -rw-r--r-- | drivers/usb/core/usb.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c index c4a6f1095b8..8f142370103 100644 --- a/drivers/usb/core/usb.c +++ b/drivers/usb/core/usb.c @@ -192,9 +192,34 @@ static void usb_release_dev(struct device *dev) kfree(udev); } +#ifdef CONFIG_HOTPLUG +static int usb_dev_uevent(struct device *dev, struct kobj_uevent_env *env) +{ + struct usb_device *usb_dev; + + usb_dev = to_usb_device(dev); + + if (add_uevent_var(env, "BUSNUM=%03d", usb_dev->bus->busnum)) + return -ENOMEM; + + if (add_uevent_var(env, "DEVNUM=%03d", usb_dev->devnum)) + return -ENOMEM; + + return 0; +} + +#else + +static int usb_dev_uevent(struct device *dev, struct kobj_uevent_env *env) +{ + return -ENODEV; +} +#endif /* CONFIG_HOTPLUG */ + struct device_type usb_device_type = { .name = "usb_device", .release = usb_release_dev, + .uevent = usb_dev_uevent, }; #ifdef CONFIG_PM |