Merge branches 'battery', 'bugzilla-14667', 'bugzilla-15096', 'bugzilla-15480', ...

[pandora-kernel.git] / include / linux / usb.h

diff --git a/include/linux/usb.h b/include/linux/usb.h
index 8c9f053..ce1323c 100644 (file)
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -1055,7 +1055,8 @@ typedef void (*usb_complete_t)(struct urb *);
  * @number_of_packets: Lists the number of ISO transfer buffers.
  * @interval: Specifies the polling interval for interrupt or isochronous
  *     transfers.  The units are frames (milliseconds) for full and low
- *     speed devices, and microframes (1/8 millisecond) for highspeed ones.
+ *     speed devices, and microframes (1/8 millisecond) for highspeed
+ *     and SuperSpeed devices.
  * @error_count: Returns the number of ISO transfers that reported errors.
  * @context: For use in completion functions.  This normally points to
  *     request-specific driver context.
@@ -1286,9 +1287,16 @@ static inline void usb_fill_bulk_urb(struct urb *urb,
  *
  * Initializes a interrupt urb with the proper information needed to submit
  * it to a device.
- * Note that high speed interrupt endpoints use a logarithmic encoding of
- * the endpoint interval, and express polling intervals in microframes
- * (eight per millisecond) rather than in frames (one per millisecond).
+ *
+ * Note that High Speed and SuperSpeed interrupt endpoints use a logarithmic
+ * encoding of the endpoint interval, and express polling intervals in
+ * microframes (eight per millisecond) rather than in frames (one per
+ * millisecond).
+ *
+ * Wireless USB also uses the logarithmic encoding, but specifies it in units of
+ * 128us instead of 125us.  For Wireless USB devices, the interval is passed
+ * through to the host controller, rather than being translated into microframe
+ * units.
  */
 static inline void usb_fill_int_urb(struct urb *urb,
                                    struct usb_device *dev,
@@ -1305,7 +1313,7 @@ static inline void usb_fill_int_urb(struct urb *urb,
        urb->transfer_buffer_length = buffer_length;
        urb->complete = complete_fn;
        urb->context = context;
-       if (dev->speed == USB_SPEED_HIGH)
+       if (dev->speed == USB_SPEED_HIGH || dev->speed == USB_SPEED_SUPER)
                urb->interval = 1 << (interval - 1);
        else
                urb->interval = interval;