diff options
Diffstat (limited to 'include/linux/usb.h')
| -rw-r--r-- | include/linux/usb.h | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/include/linux/usb.h b/include/linux/usb.h index 2714814ab66..46dc0421d19 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -329,8 +329,6 @@ struct usb_device { struct usb_tt *tt; /* low/full speed dev, highspeed hub */ int ttport; /* device port on that tt hub */ - struct semaphore serialize; - unsigned int toggle[2]; /* one bit for each endpoint * ([0] = IN, [1] = OUT) */ @@ -377,11 +375,12 @@ struct usb_device { extern struct usb_device *usb_get_dev(struct usb_device *dev); extern void usb_put_dev(struct usb_device *dev); -extern void usb_lock_device(struct usb_device *udev); -extern int usb_trylock_device(struct usb_device *udev); +/* USB device locking */ +#define usb_lock_device(udev) down(&(udev)->dev.sem) +#define usb_unlock_device(udev) up(&(udev)->dev.sem) +#define usb_trylock_device(udev) down_trylock(&(udev)->dev.sem) extern int usb_lock_device_for_reset(struct usb_device *udev, struct usb_interface *iface); -extern void usb_unlock_device(struct usb_device *udev); /* USB port reset for device reinitialization */ extern int usb_reset_device(struct usb_device *dev); |