1 files changed, 29 insertions, 0 deletions

diff --git a/include/linux/usb/ch9.h b/include/linux/usb/ch9.h
index 0fd3fbdd8283..f32a64e57f97 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 */
 
 /*-------------------------------------------------------------------------*/
 
@@ -143,6 +144,11 @@
 #define USB_INTRF_FUNC_SUSPEND  0       /* function suspend */
 
 #define USB_INTR_FUNC_SUSPEND_OPT_MASK  0xFF00
+/*
+ * Suspend Options, Table 9-7 USB 3.0 spec
+ */
+#define USB_INTRF_FUNC_SUSPEND_LP       (1 << (8 + 0))
+#define USB_INTRF_FUNC_SUSPEND_RW       (1 << (8 + 1))
 
 #define USB_ENDPOINT_HALT               0       /* IN/OUT will STALL */
 
@@ -570,6 +576,17 @@ 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 */
@@ -851,6 +868,18 @@ enum usb_device_speed {
         USB_SPEED_SUPER,                        /* usb 3.0 */
 };
 
+#ifdef __KERNEL__
+
+/**
+ * usb_speed_string() - Returns human readable-name of the speed.
+ * @speed: The speed to return human-readable name for.  If it's not
+ *   any of the speeds defined in usb_device_speed enum, string for
+ *   USB_SPEED_UNKNOWN will be returned.
+ */
+extern const char *usb_speed_string(enum usb_device_speed speed);
+
+#endif
+
 enum usb_device_state {
         /* NOTATTACHED isn't in the USB spec, and this state acts
          * the same as ATTACHED ... but it's clearer this way.