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ntc_thermistor.h
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1 /*
2  * ntc_thermistor.h - NTC Thermistors
3  *
4  * Copyright (C) 2010 Samsung Electronics
5  * MyungJoo Ham <[email protected]>
6  *
7  * This program is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
9  * the Free Software Foundation; either version 2 of the License, or
10  * (at your option) any later version.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program; if not, write to the Free Software
19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20  */
21 #ifndef _LINUX_NTC_H
22 #define _LINUX_NTC_H
23 
27 };
28 
30  /*
31  * One (not both) of read_uV and read_ohm should be provided and only
32  * one of the two should be provided.
33  * Both functions should return negative value for an error case.
34  *
35  * pullup_uV, pullup_ohm, pulldown_ohm, and connect are required to use
36  * read_uV()
37  *
38  * How to setup pullup_ohm, pulldown_ohm, and connect is
39  * described at Documentation/hwmon/ntc_thermistor
40  *
41  * pullup/down_ohm: 0 for infinite / not-connected
42  */
44  unsigned int pullup_uV;
45 
46  unsigned int pullup_ohm;
47  unsigned int pulldown_ohm;
49 
51 };
52 
53 #endif /* _LINUX_NTC_H */