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>
diff --git a/include/linux/usb/ch9.h b/include/linux/usb/ch9.h
index 10675b4..822fca0 100644
--- a/include/linux/usb/ch9.h
+++ b/include/linux/usb/ch9.h
@@ -379,6 +379,11 @@
#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