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scoutos / prex-0.9.0 / sys / include / device.h @ 03e9c04a

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/*-
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 * Copyright (c) 2005-2007, Kohsuke Ohtani
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * 1. Redistributions of source code must retain the above copyright
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 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    notice, this list of conditions and the following disclaimer in the
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 *    documentation and/or other materials provided with the distribution.
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 * 3. Neither the name of the author nor the names of any co-contributors
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 *    may be used to endorse or promote products derived from this software
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 *    without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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 * SUCH DAMAGE.
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 */
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#ifndef _DEVICE_H
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#define _DEVICE_H
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#include <sys/cdefs.h>
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#include <types.h>
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#include <sys/device.h>
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/*
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 * Device object
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 */
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struct device {
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        struct device        *next;                /* linkage on list of all devices */
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        struct driver        *driver;        /* pointer to the driver object */
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        char                name[MAXDEVNAME]; /* name of device */
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        int                flags;                /* D_* flags defined above */
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        int                active;                /* device has not been destroyed */
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        int                refcnt;                /* reference count */
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        void                *private;        /* private storage */
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};
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__BEGIN_DECLS
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int         device_open(const char *, int, device_t *);
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int         device_close(device_t);
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int         device_read(device_t, void *, size_t *, int);
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int         device_write(device_t, void *, size_t *, int);
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int         device_ioctl(device_t, u_long, void *);
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int         device_info(struct devinfo *);
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void         device_init(void);
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__BEGIN_DECLS
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#endif /* !_DEVICE_H */