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Annotation of Net2/arch/hp300/dev/vnioctl.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1988 University of Utah.
        !             3:  * Copyright (c) 1990 The Regents of the University of California.
        !             4:  * All rights reserved.
        !             5:  *
        !             6:  * This code is derived from software contributed to Berkeley by
        !             7:  * the Systems Programming Group of the University of Utah Computer
        !             8:  * Science Department.
        !             9:  *
        !            10:  * Redistribution and use in source and binary forms, with or without
        !            11:  * modification, are permitted provided that the following conditions
        !            12:  * are met:
        !            13:  * 1. Redistributions of source code must retain the above copyright
        !            14:  *    notice, this list of conditions and the following disclaimer.
        !            15:  * 2. Redistributions in binary form must reproduce the above copyright
        !            16:  *    notice, this list of conditions and the following disclaimer in the
        !            17:  *    documentation and/or other materials provided with the distribution.
        !            18:  * 3. All advertising materials mentioning features or use of this software
        !            19:  *    must display the following acknowledgement:
        !            20:  *     This product includes software developed by the University of
        !            21:  *     California, Berkeley and its contributors.
        !            22:  * 4. Neither the name of the University nor the names of its contributors
        !            23:  *    may be used to endorse or promote products derived from this software
        !            24:  *    without specific prior written permission.
        !            25:  *
        !            26:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            27:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            28:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            29:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            30:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            31:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            32:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            33:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            34:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            35:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            36:  * SUCH DAMAGE.
        !            37:  *
        !            38:  * from: Utah $Hdr: fdioctl.h 1.1 90/07/09$
        !            39:  *
        !            40:  *     @(#)vnioctl.h   7.3 (Berkeley) 5/7/91
        !            41:  */
        !            42: 
        !            43: /*
        !            44:  * Ioctl definitions for file (vnode) disk pseudo-device.
        !            45:  */
        !            46: 
        !            47: #define FDISKFILE      "/etc/fdisks"   /* default config file */
        !            48: 
        !            49: struct vn_ioctl {
        !            50:        char    *vn_file;       /* pathname of file to mount */
        !            51:        int     vn_size;        /* (returned) size of disk */
        !            52: };
        !            53: 
        !            54: /*
        !            55:  * Before you can use a unit, it must be configured with VNIOCSET.
        !            56:  * The configuration persists across opens and closes of the device;
        !            57:  * an VNIOCCLR must be used to reset a configuration.  An attempt to
        !            58:  * VNIOCSET an already active unit will return EBUSY.
        !            59:  */
        !            60: #define VNIOCSET       _IOWR('F', 0, struct vn_ioctl)  /* enable disk */
        !            61: #define VNIOCCLR       _IOW('F', 1, struct vn_ioctl)   /* disable disk */

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