From: kuninori.morimoto.gx@renesas.com <kuninori.morimoto.gx@renesas.com>
Date: Mon, 25 Jul 2011 07:39:30 +0000 (-0700)
Subject: usb: add usb_endpoint_maxp() macro
X-Git-Tag: next-20110823~5^2~11
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=939f325f4a0f;p=karo-tx-linux.git

usb: add usb_endpoint_maxp() macro

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

diff --git a/include/linux/usb/ch9.h b/include/linux/usb/ch9.h
index 0fd3fbdd8283..e809deabf503 100644
--- a/include/linux/usb/ch9.h
+++ b/include/linux/usb/ch9.h
@@ -34,6 +34,7 @@
 #define __LINUX_USB_CH9_H
 
 #include <linux/types.h>	/* __u8 etc */
+#include <asm/byteorder.h>	/* le16_to_cpu */
 
 /*-------------------------------------------------------------------------*/
 
@@ -570,6 +571,17 @@ static inline int usb_endpoint_is_isoc_out(
 	return usb_endpoint_xfer_isoc(epd) && usb_endpoint_dir_out(epd);
 }
 
+/**
+ * usb_endpoint_maxp - get endpoint's max packet size
+ * @epd: endpoint to be checked
+ *
+ * Returns @epd's max packet
+ */
+static inline int usb_endpoint_maxp(const struct usb_endpoint_descriptor *epd)
+{
+	return le16_to_cpu(epd->wMaxPacketSize);
+}
+
 /*-------------------------------------------------------------------------*/
 
 /* USB_DT_SS_ENDPOINT_COMP: SuperSpeed Endpoint Companion descriptor */