usb_if.m revision 194064 
1#-
2# Copyright (c) 2008 Hans Petter Selasky. All rights reserved.
3#
4# Redistribution and use in source and binary forms, with or without
5# modification, are permitted provided that the following conditions
6# are met:
7# 1. Redistributions of source code must retain the above copyright
8#    notice, this list of conditions and the following disclaimer,
9#    without modification, immediately at the beginning of the file.
10# 2. Redistributions in binary form must reproduce the above copyright
11#    notice, this list of conditions and the following disclaimer in the
12#    documentation and/or other materials provided with the distribution.
13# 3. The name of the author may not be used to endorse or promote products
14#    derived from this software without specific prior written permission.
15#
16# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26#
27# $FreeBSD: head/sys/dev/usb/usb_if.m 194064 2009-06-12 15:58:55Z thompsa $
28#
29
30# USB interface description
31#
32
33#include <sys/bus.h>
34
35INTERFACE usb;
36
37# The device received a control request
38#
39# Return values:
40# 0: Success
41# ENOTTY: Transaction stalled
42# Else: Use builtin request handler
43#
44METHOD int handle_request {
45	device_t dev;
46	const void *req; /* pointer to the device request */
47	void **pptr; /* data pointer */
48	uint16_t *plen; /* maximum transfer length */
49	uint16_t offset; /* data offset */
50	uint8_t is_complete; /* set if transfer is complete, see USB_HR_XXX */
51};
52