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-rw-r--r--include/linux/usb/ch9.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/usb/ch9.h b/include/linux/usb/ch9.h
index 43bce9da7a4d..d1d732c2838d 100644
--- a/include/linux/usb/ch9.h
+++ b/include/linux/usb/ch9.h
@@ -392,6 +392,11 @@ struct usb_endpoint_descriptor {
392#define USB_ENDPOINT_XFER_INT 3 392#define USB_ENDPOINT_XFER_INT 3
393#define USB_ENDPOINT_MAX_ADJUSTABLE 0x80 393#define USB_ENDPOINT_MAX_ADJUSTABLE 0x80
394 394
395/* The USB 3.0 spec redefines bits 5:4 of bmAttributes as interrupt ep type. */
396#define USB_ENDPOINT_INTRTYPE 0x30
397#define USB_ENDPOINT_INTR_PERIODIC (0 << 4)
398#define USB_ENDPOINT_INTR_NOTIFICATION (1 << 4)
399
395#define USB_ENDPOINT_SYNCTYPE 0x0c 400#define USB_ENDPOINT_SYNCTYPE 0x0c
396#define USB_ENDPOINT_SYNC_NONE (0 << 2) 401#define USB_ENDPOINT_SYNC_NONE (0 << 2)
397#define USB_ENDPOINT_SYNC_ASYNC (1 << 2) 402#define USB_ENDPOINT_SYNC_ASYNC (1 << 2)
@@ -594,6 +599,12 @@ static inline int usb_endpoint_maxp(const struct usb_endpoint_descriptor *epd)
594 return __le16_to_cpu(epd->wMaxPacketSize); 599 return __le16_to_cpu(epd->wMaxPacketSize);
595} 600}
596 601
602static inline int usb_endpoint_interrupt_type(
603 const struct usb_endpoint_descriptor *epd)
604{
605 return epd->bmAttributes & USB_ENDPOINT_INTRTYPE;
606}
607
597/*-------------------------------------------------------------------------*/ 608/*-------------------------------------------------------------------------*/
598 609
599/* USB_DT_SS_ENDPOINT_COMP: SuperSpeed Endpoint Companion descriptor */ 610/* USB_DT_SS_ENDPOINT_COMP: SuperSpeed Endpoint Companion descriptor */