[PATCH] USB: add usb_interrupt_msg() function for api completeness.

Really just a wrapper around usb_bulk_msg() but now it's documented
much better.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/linux/usb.h b/include/linux/usb.h
index 1f492c0c7047..317ec9f28bce 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -1008,6 +1008,8 @@ void usb_buffer_unmap_sg (struct usb_device *dev, unsigned pipe,
 extern int usb_control_msg(struct usb_device *dev, unsigned int pipe,
         __u8 request, __u8 requesttype, __u16 value, __u16 index,
         void *data, __u16 size, int timeout);
+extern int usb_interrupt_msg(struct usb_device *usb_dev, unsigned int pipe,
+        void *data, int len, int *actual_length, int timeout);
 extern int usb_bulk_msg(struct usb_device *usb_dev, unsigned int pipe,
         void *data, int len, int *actual_length,
         int timeout);