usb: add usb_endpoint_maxp() macro (939f325f) · Commits · 戴 / test

include/linux/usb/ch9.h

+12 −0

Original line number	Original line	Diff line number	Diff line
	@@ -34,6 +34,7 @@
	#define __LINUX_USB_CH9_H		#define __LINUX_USB_CH9_H

	#include <linux/types.h> /* __u8 etc */		#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);		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 */		/* USB_DT_SS_ENDPOINT_COMP: SuperSpeed Endpoint Companion descriptor */