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ben-wpan/atusb/fw/sernum.c
Werner Almesberger 85f60de9d5 atusb/fw: use the unique serial number of the ATmega8/16/32U2 for iSerialNumber
- usb/usb.h (USB_LANGID_ENGLISH_US): added USB LANGID for US-English
- board.h (board_sernum), board.c (board_sernum, hex, get_sernum,
  board_init): provide the board's serial number in "board_sernum"
  (UTF-encoded)
- sernum.h (sernum_get_descr), sernum.c (sernum_get_descr): return
  string descriptors for the serial number
- descr.c (device_descriptor), usb/dfu.c (device_descriptor):
  set iSerialNumber if serial number is available
- atusb.c (main), usb/dfu.c (my_descr): call sernum_get_descr for
  unknown descriptors
- Makefile (OBJS, BOOT_OBJS): added sernum.o
2011-05-10 17:23:08 -03:00

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C

/*
* fw/sernum.c - ATUSB serial number
*
* Written 2008-2011 by Werner Almesberger
* Copyright 2008-2011 Werner Almesberger
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include <stdint.h>
#include "usb.h"
#include "board.h"
#include "sernum.h"
static const uint8_t string_descriptor_0[] = {
4, /* blength */
USB_DT_STRING, /* bDescriptorType */
LE(USB_LANGID_ENGLISH_US) /* wLANGID[0] */
};
int sernum_get_descr(uint8_t type, uint8_t index, const uint8_t **reply,
uint8_t *size)
{
if (type != USB_DT_STRING)
return 0;
switch (index) {
case 0:
*reply = string_descriptor_0;
*size = sizeof(string_descriptor_0);
return 1;
case 1:
*reply = board_sernum;
*size = sizeof(board_sernum);
return 1;
default:
return 0;
}
}