diff options
| -rw-r--r-- | include/linux/usb/ch9.h | 11 |
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 { #define USB_ENDPOINT_XFER_INT 3 #define USB_ENDPOINT_MAX_ADJUSTABLE 0x80 +/* The USB 3.0 spec redefines bits 5:4 of bmAttributes as interrupt ep type. */ +#define USB_ENDPOINT_INTRTYPE 0x30 +#define USB_ENDPOINT_INTR_PERIODIC (0 << 4) +#define USB_ENDPOINT_INTR_NOTIFICATION (1 << 4) + #define USB_ENDPOINT_SYNCTYPE 0x0c #define USB_ENDPOINT_SYNC_NONE (0 << 2) #define USB_ENDPOINT_SYNC_ASYNC (1 << 2) @@ -594,6 +599,12 @@ static inline int usb_endpoint_maxp(const struct usb_endpoint_descriptor *epd) return __le16_to_cpu(epd->wMaxPacketSize); } +static inline int usb_endpoint_interrupt_type( + const struct usb_endpoint_descriptor *epd) +{ + return epd->bmAttributes & USB_ENDPOINT_INTRTYPE; +} + /*-------------------------------------------------------------------------*/ /* USB_DT_SS_ENDPOINT_COMP: SuperSpeed Endpoint Companion descriptor */ |