FreeBSD/Linux Kernel Cross Reference
sys/fs/cuse/cuse_defs.h

     /* $FreeBSD$ */
     /*-
      * Copyright (c) 2010-2012 Hans Petter Selasky. All rights reserved.
      *
      * Redistribution and use in source and binary forms, with or without
      * modification, are permitted provided that the following conditions
      * are met:
      * 1. Redistributions of source code must retain the above copyright
      *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     * SUCH DAMAGE.
     */
    
    #ifndef _CUSE_DEFS_H_
    #define _CUSE_DEFS_H_
    
    #define CUSE_VERSION            0x000124
    
    #define CUSE_ERR_NONE           0
    #define CUSE_ERR_BUSY           -1
    #define CUSE_ERR_WOULDBLOCK     -2
    #define CUSE_ERR_INVALID        -3
    #define CUSE_ERR_NO_MEMORY      -4
    #define CUSE_ERR_FAULT          -5
    #define CUSE_ERR_SIGNAL         -6
    #define CUSE_ERR_OTHER          -7
    #define CUSE_ERR_NOT_LOADED     -8
    #define CUSE_ERR_NO_DEVICE      -9
    
    #define CUSE_POLL_NONE          0
    #define CUSE_POLL_READ          1
    #define CUSE_POLL_WRITE         2
    #define CUSE_POLL_ERROR         4
    
    #define CUSE_FFLAG_NONE         0
    #define CUSE_FFLAG_READ         1
    #define CUSE_FFLAG_WRITE        2
    #define CUSE_FFLAG_NONBLOCK     4
    #define CUSE_FFLAG_COMPAT32     8 /* peer is running in 32-bit compat mode */
    
    #define CUSE_DBG_NONE           0
    #define CUSE_DBG_FULL           1
    
    /* maximum data transfer length */
    #define CUSE_LENGTH_MAX         0x7FFFFFFFU
    
    enum {
            CUSE_CMD_NONE,
            CUSE_CMD_OPEN,
            CUSE_CMD_CLOSE,
            CUSE_CMD_READ,
            CUSE_CMD_WRITE,
            CUSE_CMD_IOCTL,
            CUSE_CMD_POLL,
            CUSE_CMD_SIGNAL,
            CUSE_CMD_SYNC,
            CUSE_CMD_MAX,
    };
    
    #define CUSE_MAKE_ID(a,b,c,u) ((((a) & 0x7F) << 24)| \
        (((b) & 0xFF) << 16)|(((c) & 0xFF) << 8)|((u) & 0xFF))
    
    #define CUSE_ID_MASK 0x7FFFFF00U
    
    /*
     * The following ID's are defined:
     * ===============================
     */
    #define CUSE_ID_DEFAULT(what) CUSE_MAKE_ID(0,0,what,0)
    #define CUSE_ID_WEBCAMD(what) CUSE_MAKE_ID('W','C',what,0)      /* Used by Webcamd. */
    #define CUSE_ID_SUNDTEK(what) CUSE_MAKE_ID('S','K',what,0)      /* Used by Sundtek. */
    #define CUSE_ID_CX88(what) CUSE_MAKE_ID('C','X',what,0)         /* Used by cx88 driver. */
    #define CUSE_ID_UHIDD(what) CUSE_MAKE_ID('U','D',what,0)        /* Used by uhidd. */
    
    #endif                                  /* _CUSE_DEFS_H_ */

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