The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/kern/clock_if.m

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    1 # Copyright (c) 2001 by Thomas Moestl <tmm@FreeBSD.org>.
    2 # All rights reserved.
    3 #
    4 # Redistribution and use in source and binary forms, with or without
    5 # modification, are permitted provided that the following conditions
    6 # are met:
    7 # 1. Redistributions of source code must retain the above copyright
    8 #    notice, this list of conditions and the following disclaimer.
    9 # 2. Redistributions in binary form must reproduce the above copyright
   10 #    notice, this list of conditions and the following disclaimer in the
   11 #    documentation and/or other materials provided with the distribution.
   12 #
   13 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   14 # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   15 # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   16 # IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
   17 # INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
   18 # (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
   19 # SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
   20 # CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   21 # OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
   22 # USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   23 #
   24 # $FreeBSD: releng/5.1/sys/kern/clock_if.m 93835 2002-04-04 23:39:10Z tmm $
   25 
   26 #include <sys/bus.h>
   27 #include <sys/time.h>
   28 
   29 INTERFACE clock;
   30 
   31 # Interface for clock drivers. This is inspired by the NetBSD device-independent
   32 # clock code (by Gordon W. Ross).
   33 
   34 # An EINVAL error return from this call signifies that the clock has an illegal
   35 # setting.
   36 METHOD int gettime {
   37         device_t dev;
   38         struct timespec *ts;
   39 };
   40 
   41 METHOD int settime {
   42         device_t dev;
   43         struct timespec *ts;
   44 };

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