USB: Add definition for the Pipe Usage descriptor

The Pipe Usage descriptor is needed for USB Attached SCSI

Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/include/linux/usb/ch9.h b/include/linux/usb/ch9.h
index 603b61aadd6548a12629f205c3278a96751b398d..e779af5c800b1f430f6c3243a8b5a6e699ee03d4 100644 (file)
--- a/include/linux/usb/ch9.h
+++ b/include/linux/usb/ch9.h
@@ -191,6 +191,8 @@ struct usb_ctrlrequest {
 #define USB_DT_WIRE_ADAPTER            0x21
 #define USB_DT_RPIPE                   0x22
 #define USB_DT_CS_RADIO_CONTROL                0x23
+/* From the T10 UAS specification */
+#define USB_DT_PIPE_USAGE              0x24
 /* From the USB 3.0 spec */
 #define        USB_DT_SS_ENDPOINT_COMP         0x30