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kxtj9.h
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1 /*
2  * Copyright (C) 2011 Kionix, Inc.
3  * Written by Chris Hudson <[email protected]>
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License version 2 as
7  * published by the Free Software Foundation.
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12  * GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write to the Free Software
16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
17  * 02111-1307, USA
18  */
19 
20 #ifndef __KXTJ9_H__
21 #define __KXTJ9_H__
22 
23 #define KXTJ9_I2C_ADDR 0x0F
24 
26  unsigned int min_interval; /* minimum poll interval (in milli-seconds) */
27  unsigned int init_interval; /* initial poll interval (in milli-seconds) */
28 
29  /*
30  * By default, x is axis 0, y is axis 1, z is axis 2; these can be
31  * changed to account for sensor orientation within the host device.
32  */
36 
37  /*
38  * Each axis can be negated to account for sensor orientation within
39  * the host device.
40  */
41  bool negate_x;
42  bool negate_y;
43  bool negate_z;
44 
45  /* CTRL_REG1: set resolution, g-range, data ready enable */
46  /* Output resolution: 8-bit valid or 12-bit valid */
47  #define RES_8BIT 0
48  #define RES_12BIT (1 << 6)
50  /* Output g-range: +/-2g, 4g, or 8g */
51  #define KXTJ9_G_2G 0
52  #define KXTJ9_G_4G (1 << 3)
53  #define KXTJ9_G_8G (1 << 4)
55 
56  int (*init)(void);
57  void (*exit)(void);
60 };
61 #endif /* __KXTJ9_H__ */