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/* $OpenBSD: descr.c,v 1.6 2012/07/16 19:57:17 jasper Exp $ */ |
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/* $NetBSD: descr.c,v 1.2 2002/02/20 20:31:07 christos Exp $ */ |
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/* |
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* Copyright (c) 1999 Lennart Augustsson <augustss@netbsd.org> |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
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* SUCH DAMAGE. |
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*/ |
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#include <sys/types.h> |
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#include <errno.h> |
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#include <stdlib.h> |
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#include <string.h> |
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#include <unistd.h> |
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#include <sys/time.h> |
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#include <dev/usb/usb.h> |
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#include "usbhid.h" |
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#include "usbvar.h" |
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report_desc_t |
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hid_get_report_desc(int fd) |
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{ |
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struct usb_ctl_report_desc rep; |
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rep.ucrd_size = 0; |
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if (ioctl(fd, USB_GET_REPORT_DESC, &rep) < 0) |
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return (NULL); |
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return hid_use_report_desc(rep.ucrd_data, (unsigned int)rep.ucrd_size); |
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} |
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report_desc_t |
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hid_use_report_desc(unsigned char *data, unsigned int size) |
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{ |
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report_desc_t r; |
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r = malloc(sizeof(*r) + size); |
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if (r == NULL) |
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return (NULL); |
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r->size = size; |
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memcpy(r->data, data, size); |
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return (r); |
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} |
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void |
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hid_dispose_report_desc(report_desc_t r) |
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{ |
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free(r); |
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} |