/* $NetBSD: descr.c,v 1.9 2000/09/24 02:13:24 augustss Exp $ */
/*
* Copyright (c) 1999 Lennart Augustsson <augustss@netbsd.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/types.h>
#include <assert.h>
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/time.h>
#include <sys/ioctl.h>
#include <dev/usb/usb.h>
#include "usbhid.h"
#include "usbvar.h"
report_desc_t
hid_get_report_desc(int fd)
{
struct usb_ctl_report_desc rep;
rep.ucrd_size = 0;
if (ioctl(fd, USB_GET_REPORT_DESC, &rep) < 0)
return (NULL);
return hid_use_report_desc(rep.ucrd_data, (unsigned int)rep.ucrd_size);
}
report_desc_t
hid_use_report_desc(unsigned char *data, unsigned int size)
{
report_desc_t r;
r = malloc(sizeof(*r) + size);
if (r == 0) {
errno = ENOMEM;
return (NULL);
}
r->size = size;
memcpy(r->data, data, size);
return (r);
}
void
hid_dispose_report_desc(report_desc_t r)
{
free(r);
}
