1 /* $NetBSD: descr.c,v 1.9 2000/09/24 02:13:24 augustss Exp $ */
4 * Copyright (c) 1999 Lennart Augustsson <augustss@netbsd.org>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
32 #include <sys/types.h>
40 #include <sys/ioctl.h>
42 #include <dev/usb/usb_ioctl.h>
48 hid_set_immed(int fd, int enable)
51 ret = ioctl(fd, USB_SET_IMMED, &enable);
54 ret = hid_set_immed_compat7(fd, enable);
60 hid_get_report_id(int fd)
65 ret = ioctl(fd, USB_GET_REPORT_ID, &temp);
68 ret = hid_get_report_id_compat7(fd);
77 hid_get_report_desc(int fd)
79 struct usb_gen_descriptor ugd;
83 memset(&ugd, 0, sizeof(ugd));
85 /* get actual length first */
87 ugd.ugd_maxlen = 65535;
88 if (ioctl(fd, USB_GET_REPORT_DESC, &ugd) < 0) {
90 /* could not read descriptor */
91 /* try FreeBSD 7 compat code */
92 return (hid_get_report_desc_compat7(fd));
99 * NOTE: The kernel will return a failure if
100 * "ugd_actlen" is zero.
102 data = malloc(ugd.ugd_actlen);
106 /* fetch actual descriptor */
108 ugd.ugd_maxlen = ugd.ugd_actlen;
109 if (ioctl(fd, USB_GET_REPORT_DESC, &ugd) < 0) {
110 /* could not read descriptor */
115 /* check END_COLLECTION */
116 if (((unsigned char *)ugd.ugd_data)[ugd.ugd_actlen -1] != 0xC0) {
117 /* invalid end byte */
122 rep = hid_use_report_desc(data, ugd.ugd_actlen);
130 hid_use_report_desc(unsigned char *data, unsigned int size)
134 r = malloc(sizeof(*r) + size);
140 memcpy(r->data, data, size);
145 hid_dispose_report_desc(report_desc_t r)