81 lines
2.3 KiB
C
81 lines
2.3 KiB
C
/* $NetBSD: descr.c,v 1.5 2007/04/11 20:56:20 plunky 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>
|
|
__RCSID("$NetBSD: descr.c,v 1.5 2007/04/11 20:56:20 plunky Exp $");
|
|
|
|
#include <sys/types.h>
|
|
|
|
#include <assert.h>
|
|
#include <errno.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <sys/time.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;
|
|
|
|
_DIAGASSERT(fd != -1);
|
|
|
|
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(const uint8_t *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);
|
|
}
|