/* $OpenBSD: descr.c,v 1.3 2002/05/10 00:09:17 nate Exp $ */ /* $NetBSD: descr.c,v 1.2 2002/02/20 20:31:07 christos 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/types.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; 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); }