smb.h

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    1 /*-
    2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    3  *
    4  * Copyright (c) 1998 Nicolas Souchu
    5  * All rights reserved.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   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.
   15  *
   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
   26  * SUCH DAMAGE.
   27  *
   28  * $FreeBSD$
   29  *
   30  */
   31 #ifndef __SMB_H
   32 #define __SMB_H
   33 
   34 #include <sys/ioccom.h>
   35 
   36 struct smbcmd {
   37         u_char cmd;
   38         u_char reserved;
   39         u_short op;
   40         union {
   41                 char    byte;
   42                 char    buf[2];
   43                 short   word;
   44         } wdata;
   45         union {
   46                 char    byte;
   47                 char    buf[2];
   48                 short   word;
   49         } rdata;
   50         int  slave;
   51         char *wbuf;     /* use wdata if NULL */
   52         int  wcount;
   53         char *rbuf;     /* use rdata if NULL */
   54         int  rcount;
   55 };
   56 
   57 /*
   58  * SMBus spec 2.0 says block transfers may be at most 32 bytes.
   59  */
   60 #define SMB_MAXBLOCKSIZE        32
   61 
   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)
   74 
   75 #endif

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FreeBSD/Linux Kernel Cross Reference sys/dev/smbus/smb.h

FreeBSD/Linux Kernel Cross Reference
sys/dev/smbus/smb.h