From: Sarah Bailey <[EMAIL PROTECTED]>
Added a function to check if an endpoint is a control endpoint.
There were similar functions for bulk, interrupt, and isoc,
but not for control endpoints.
Signed-off-by: Sarah Bailey <[EMAIL PROTECTED]>
Signed-off-by: Greg Kroah-Hartman <[EMAIL PROTECTED]>
---
include/linux/usb.h | 12 ++++++++++++
1 files changed, 12 insertions(+), 0 deletions(-)
diff --git a/include/linux/usb.h b/include/linux/usb.h
index 3cb9285..1c56386 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -557,6 +557,18 @@ static inline int usb_endpoint_xfer_bulk(const struct
usb_endpoint_descriptor *e
}
/**
+ * usb_endpoint_xfer_control - check if the endpoint has control transfer type
+ * @epd: endpoint to be checked
+ *
+ * Returns true if the endpoint is of type control, otherwise it returns false.
+ */
+static inline int usb_endpoint_xfer_control(const struct
usb_endpoint_descriptor *epd)
+{
+ return ((epd->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) ==
+ USB_ENDPOINT_XFER_CONTROL);
+}
+
+/**
* usb_endpoint_xfer_int - check if the endpoint has interrupt transfer type
* @epd: endpoint to be checked
*
--
1.4.4.4
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