2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 1998 Nicolas Souchu
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
34 #include <sys/ioccom.h>
51 char *wbuf; /* use wdata if NULL */
53 char *rbuf; /* use rdata if NULL */
58 * SMBus spec 2.0 says block transfers may be at most 32 bytes.
60 #define SMB_MAXBLOCKSIZE 32
62 #define SMB_QUICK_WRITE _IOW('i', 1, struct smbcmd)
63 #define SMB_QUICK_READ _IOW('i', 2, struct smbcmd)
64 #define SMB_SENDB _IOW('i', 3, struct smbcmd)
65 #define SMB_RECVB _IOWR('i', 4, struct smbcmd)
66 #define SMB_WRITEB _IOW('i', 5, struct smbcmd)
67 #define SMB_WRITEW _IOW('i', 6, struct smbcmd)
68 #define SMB_READB _IOWR('i', 7, struct smbcmd)
69 #define SMB_READW _IOWR('i', 8, struct smbcmd)
70 #define SMB_PCALL _IOWR('i', 9, struct smbcmd)
71 #define SMB_BWRITE _IOW('i', 10, struct smbcmd)
72 #define SMB_BREAD _IOWR('i', 11, struct smbcmd)
73 #define SMB_OLD_TRANS _IOWR('i', 12, struct smbcmd)