summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorkuninori.morimoto.gx@renesas.com <kuninori.morimoto.gx@renesas.com>2011-07-25 00:39:30 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2011-08-22 15:54:38 -0700
commit939f325f4a0fb7eb189268a4593e427d3a075514 (patch)
tree73b3f857401af0339979f8260bcafa667726ca4c
parent23106343db66171c94ae486d2035478ec575b228 (diff)
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>
-rw-r--r--include/linux/usb/ch9.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/usb/ch9.h b/include/linux/usb/ch9.h
index 0fd3fbdd828..e809deabf50 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 */