diff options
| -rw-r--r-- | drivers/usb/core/usb.c | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c index fbbbc865181b..ee0a5adb0b14 100644 --- a/drivers/usb/core/usb.c +++ b/drivers/usb/core/usb.c @@ -196,14 +196,16 @@ void usb_deregister(struct usb_driver *driver) usbfs_update_special(); } -/* - * usb_ifnum_to_ifpos - convert the interface _number_ (as in interface.bInterfaceNumber) - * to the interface _position_ (as in dev->actconfig->interface + position) +/** + * usb_ifnum_to_ifpos - convert the interface number to the interface position * @dev: the device to use * @ifnum: the interface number (bInterfaceNumber); not interface position * - * Note that the number is the same as the position for all interfaces _except_ - * devices with interfaces not sequentially numbered (e.g., 0, 2, 3, etc). + * This is used to convert the interface _number_ (as in + * interface.bInterfaceNumber) to the interface _position_ (as in + * dev->actconfig->interface + position). Note that the number is the same as + * the position for all interfaces _except_ devices with interfaces not + * sequentially numbered (e.g., 0, 2, 3, etc). */ int usb_ifnum_to_ifpos(struct usb_device *dev, unsigned ifnum) { @@ -590,13 +592,14 @@ out_err: return -1; } -/* - * usb_find_interface_driver_for_ifnum - convert ifnum to ifpos via - * usb_ifnum_to_ifpos and call usb_find_interface_driver(). +/** + * usb_find_interface_driver_for_ifnum - finds a usb interface driver for the specified ifnum * @dev: the device to use * @ifnum: the interface number (bInterfaceNumber); not interface position! * - * Note usb_find_interface_driver's ifnum parameter is actually interface position. + * This converts a ifnum to ifpos via a call to usb_ifnum_to_ifpos and then + * calls usb_find_interface_driver() with the found ifpos. Note + * usb_find_interface_driver's ifnum parameter is actually interface position. */ int usb_find_interface_driver_for_ifnum(struct usb_device *dev, unsigned ifnum) { |