diff --git a/include/uapi/linux/usb/ch9.h b/include/uapi/linux/usb/ch9.h
index 779a62aafafe..a65f1f328de1 100644
--- a/include/uapi/linux/usb/ch9.h
+++ b/include/uapi/linux/usb/ch9.h
@@ -234,6 +234,8 @@ struct usb_ctrlrequest {
 #define USB_DT_PIPE_USAGE		0x24
 /* From the USB 3.0 spec */
 #define	USB_DT_SS_ENDPOINT_COMP		0x30
+/* From the USB 3.1 spec */
+#define	USB_DT_SSP_ISOC_ENDPOINT_COMP	0x31
 
 /* Conventional codes for class-specific descriptors.  The convention is
  * defined in the USB "Common Class" Spec (3.11).  Individual class specs
@@ -613,6 +615,20 @@ static inline int usb_endpoint_interrupt_type(
 
 /*-------------------------------------------------------------------------*/
 
+/* USB_DT_SSP_ISOC_ENDPOINT_COMP: SuperSpeedPlus Isochronous Endpoint Companion
+ * descriptor
+ */
+struct usb_ssp_isoc_ep_comp_descriptor {
+	__u8  bLength;
+	__u8  bDescriptorType;
+	__le16 wReseved;
+	__le32 dwBytesPerInterval;
+} __attribute__ ((packed));
+
+#define USB_DT_SSP_ISOC_EP_COMP_SIZE		8
+
+/*-------------------------------------------------------------------------*/
+
 /* USB_DT_SS_ENDPOINT_COMP: SuperSpeed Endpoint Companion descriptor */
 struct usb_ss_ep_comp_descriptor {
 	__u8  bLength;
@@ -646,6 +662,8 @@ usb_ss_max_streams(const struct usb_ss_ep_comp_descriptor *comp)
 
 /* Bits 1:0 of bmAttributes if this is an isoc endpoint */
 #define USB_SS_MULT(p)			(1 + ((p) & 0x3))
+/* Bit 7 of bmAttributes if a SSP isoc endpoint companion descriptor exists */
+#define USB_SS_SSP_ISOC_COMP(p)		((p) & (1 << 7))
 
 /*-------------------------------------------------------------------------*/