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RE: Setting the ARM as a USB bulk device » usbstring.h

Michael Williamson, 10/18/2017 11:18 AM

 
/*
* (c) Copyright 2003 by David Brownell
* All Rights Reserved.
*
* This software is licensed under the GNU LGPL version 2.
*/

/* utility to simplify dealing with string descriptors */

/**
* struct usb_string - wraps a C string and its USB id
* @id: the (nonzero) ID for this string
* @s: the string, in UTF-8 encoding
*
* If you're using usb_gadget_get_string(), use this to wrap a string
* together with its ID.
*/
struct usb_string {
__u8 id;
const char *s;
};

/**
* struct usb_gadget_strings - a set of USB strings in a given language
* @language: identifies the strings' language (0x0409 for en-us)
* @strings: array of strings with their ids
*
* If you're using usb_gadget_get_string(), use this to wrap all the
* strings for a given language.
*/
struct usb_gadget_strings {
__u16 language; /* 0x0409 for en-us */
struct usb_string *strings;
};

/* put descriptor for string with that id into buf (buflen >= 256) */
int usb_gadget_get_string (struct usb_gadget_strings *table, int id, __u8 *buf);

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