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718a538f94
Support for ds18b20, ds1822 thermal sensors. Based on code from Tiziano M_ller <tm@dev-zero.ch>. Patch is against 2.6.12-rc2 and should be applied without problems on top of any later kernels since w1_therm driver was not changed. Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
68 lines
1.8 KiB
C
68 lines
1.8 KiB
C
/*
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* w1_family.h
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*
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* Copyright (c) 2004 Evgeniy Polyakov <johnpol@2ka.mipt.ru>
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*
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*
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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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*
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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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*
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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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef __W1_FAMILY_H
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#define __W1_FAMILY_H
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#include <linux/types.h>
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#include <linux/device.h>
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#include <asm/atomic.h>
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#define W1_FAMILY_DEFAULT 0
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#define W1_FAMILY_SMEM 0x01
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#define W1_THERM_DS18S20 0x10
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#define W1_THERM_DS1822 0x22
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#define W1_THERM_DS18B20 0x28
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#define MAXNAMELEN 32
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struct w1_family_ops
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{
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ssize_t (* rname)(struct device *, struct device_attribute *, char *);
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ssize_t (* rbin)(struct kobject *, char *, loff_t, size_t);
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ssize_t (* rval)(struct device *, struct device_attribute *, char *);
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unsigned char rvalname[MAXNAMELEN];
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};
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struct w1_family
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{
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struct list_head family_entry;
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u8 fid;
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struct w1_family_ops *fops;
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atomic_t refcnt;
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u8 need_exit;
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};
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extern spinlock_t w1_flock;
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void w1_family_get(struct w1_family *);
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void w1_family_put(struct w1_family *);
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void __w1_family_get(struct w1_family *);
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void __w1_family_put(struct w1_family *);
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struct w1_family * w1_family_registered(u8);
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void w1_unregister_family(struct w1_family *);
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int w1_register_family(struct w1_family *);
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#endif /* __W1_FAMILY_H */
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