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dm: usb: Add a generic descriptor struct

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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>
This commit is contained in:
Simon Glass
2015-03-25 12:23:00 -06:00
parent 243d7f15e5
commit 8e2b6619c5
1 changed files with 5 additions and 0 deletions
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5
include/linux/usb/ch9.h
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@@ -379,6 +379,11 @@ struct usb_endpoint_descriptor {
#define USB_DT_ENDPOINT_SIZE 7 #define USB_DT_ENDPOINT_SIZE 7
#define USB_DT_ENDPOINT_AUDIO_SIZE 9 /* Audio extension */ #define USB_DT_ENDPOINT_AUDIO_SIZE 9 /* Audio extension */
/* Used to access common fields */
struct usb_generic_descriptor {
__u8 bLength;
__u8 bDescriptorType;
};
/* /*
* Endpoints * Endpoints