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Frodo Looijaard
6ea68ba7a2
* Some Makefile changes. doc/makefiles documents most of them. * The lm78 module now compiles, but it will still crash. * New module sensors, with general code usable by chip driver modules * i2c-core: added function i2c_adapter_id(), which returns a (low) unique i2c-bus ID. * lm78.h stuff moved into lm78.c or sensors.h git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@19 7894878c-1315-0410-8ee3-d5d059ff63e0
57 lines
1.7 KiB
C
57 lines
1.7 KiB
C
/*
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compar.h - A Linux module for reading sensor data.
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Copyright (c) 1998 Frodo Looijaard <frodol@dds.nl>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef SENSORS_COMPAT_H
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#define SENSORS_COMPAT_H
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/* This useful macro is not defined in the 2.0 kernels */
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#include <linux/version.h>
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#ifndef KERNEL_VERSION
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#define KERNEL_VERSION(a,b,c) (((a) << 16) | ((b) << 8) | (c))
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#endif
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#ifdef MODULE
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#include <linux/module.h>
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#ifndef MODULE_AUTHOR
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#define MODULE_AUTHOR(whatever)
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#endif
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#ifndef MODULE_DESCRIPTION
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#define MODULE_DESCRIPTION(whatever)
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#endif
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#endif /* def MODULE */
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/* copy_from/to_usr is called memcpy_from/to_fs in 2.0 kernels; perhaps in
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some early 2.1 kernels too? */
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#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,1,4))
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#define copy_from_user memcpy_fromfs
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#define copy_to_user memcpy_tofs
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#endif
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/* get_user was redefined in 2.1 kernels to use two arguments, and returns
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an error code */
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#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,1,4))
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#define get_user_data(to,from) ((to) = get_user(from),0)
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#else
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#define get_user_data(to,from) get_user(to,from)
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#endif
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#endif /* SENSORS_COMPAT_H */
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