diff options
Diffstat (limited to 'include/linux/usb.h')
| -rw-r--r-- | include/linux/usb.h | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/include/linux/usb.h b/include/linux/usb.h index 49ab8dbb885f..825f03b29067 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -1369,8 +1369,10 @@ extern void usb_deregister(struct usb_driver *); module_driver(__usb_driver, usb_register, \ usb_deregister) -extern int usb_register_device_driver(struct usb_device_driver *, - struct module *); +#define usb_register_device_driver(new_udriver) \ + __usb_register_device_driver(new_udriver, THIS_MODULE, KBUILD_MODNAME) +extern int __usb_register_device_driver(struct usb_device_driver *, + struct module *, const char *); extern void usb_deregister_device_driver(struct usb_device_driver *); extern int usb_register_dev(struct usb_interface *intf, @@ -1606,7 +1608,12 @@ typedef void (*usb_complete_t)(struct urb *); * * Completion Callbacks: * - * The completion callback is made in_interrupt(), and one of the first + * The completion callback can occur in any context: process, interrupt, + * BH, or anything else. Also, interrupts may or may not be disabled on + * the local CPU when the callback runs. A completion handler routine + * must not depend on any particular properties of its environment. + * + * One of the first * things that a completion handler should do is check the status field. * The status field is provided for all URBs. It is used to report * unlinked URBs, and status for all non-ISO transfers. It should not |