From 8e2b6619c58cbf3b797d13548fceb5d9d4c34ac3 Mon Sep 17 00:00:00 2001
From: Simon Glass <sjg@chromium.org>
Date: Wed, 25 Mar 2015 12:23:00 -0600
Subject: [PATCH] dm: usb: Add a generic descriptor struct

This is useful for creating lists of descriptors, and is better than using
void * for this purpose.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Marek Vasut <marex@denx.de>
---
 include/linux/usb/ch9.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/linux/usb/ch9.h b/include/linux/usb/ch9.h
index 10675b4d8a..822fca0357 100644
--- a/include/linux/usb/ch9.h
+++ b/include/linux/usb/ch9.h
@@ -379,6 +379,11 @@ struct usb_endpoint_descriptor {
 #define USB_DT_ENDPOINT_SIZE		7
 #define USB_DT_ENDPOINT_AUDIO_SIZE	9	/* Audio extension */
 
+/* Used to access common fields */
+struct usb_generic_descriptor {
+	__u8  bLength;
+	__u8  bDescriptorType;
+};
 
 /*
  * Endpoints
-- 
2.25.1