lm75reg.h revision 1.1.4.3
1 1.1.4.3 skrll /* $NetBSD: lm75reg.h,v 1.1.4.3 2004/09/18 14:45:47 skrll Exp $ */ 2 1.1.4.2 skrll 3 1.1.4.2 skrll /* 4 1.1.4.2 skrll * Copyright (c) 2003 Wasabi Systems, Inc. 5 1.1.4.2 skrll * All rights reserved. 6 1.1.4.2 skrll * 7 1.1.4.2 skrll * Written by Jason R. Thorpe for Wasabi Systems, Inc. 8 1.1.4.2 skrll * 9 1.1.4.2 skrll * Redistribution and use in source and binary forms, with or without 10 1.1.4.2 skrll * modification, are permitted provided that the following conditions 11 1.1.4.2 skrll * are met: 12 1.1.4.2 skrll * 1. Redistributions of source code must retain the above copyright 13 1.1.4.2 skrll * notice, this list of conditions and the following disclaimer. 14 1.1.4.2 skrll * 2. Redistributions in binary form must reproduce the above copyright 15 1.1.4.2 skrll * notice, this list of conditions and the following disclaimer in the 16 1.1.4.2 skrll * documentation and/or other materials provided with the distribution. 17 1.1.4.2 skrll * 3. All advertising materials mentioning features or use of this software 18 1.1.4.2 skrll * must display the following acknowledgement: 19 1.1.4.2 skrll * This product includes software developed for the NetBSD Project by 20 1.1.4.2 skrll * Wasabi Systems, Inc. 21 1.1.4.2 skrll * 4. The name of Wasabi Systems, Inc. may not be used to endorse 22 1.1.4.2 skrll * or promote products derived from this software without specific prior 23 1.1.4.2 skrll * written permission. 24 1.1.4.2 skrll * 25 1.1.4.2 skrll * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 26 1.1.4.2 skrll * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27 1.1.4.2 skrll * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28 1.1.4.2 skrll * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 29 1.1.4.2 skrll * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 1.1.4.2 skrll * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 1.1.4.2 skrll * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 1.1.4.2 skrll * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 1.1.4.2 skrll * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 1.1.4.2 skrll * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 1.1.4.2 skrll * POSSIBILITY OF SUCH DAMAGE. 36 1.1.4.2 skrll */ 37 1.1.4.2 skrll 38 1.1.4.2 skrll #ifndef _DEV_I2C_LM75REG_H_ 39 1.1.4.2 skrll #define _DEV_I2C_LM75REG_H_ 40 1.1.4.2 skrll 41 1.1.4.2 skrll /* 42 1.1.4.2 skrll * LM75 temperature sensor I2C address: 43 1.1.4.2 skrll * 44 1.1.4.2 skrll * 100 1xxx 45 1.1.4.2 skrll */ 46 1.1.4.2 skrll #define LM75_ADDRMASK 0x78 47 1.1.4.2 skrll #define LM75_ADDR 0x48 48 1.1.4.2 skrll 49 1.1.4.2 skrll /* 50 1.1.4.2 skrll * Temperature on the LM75 is represented by a 9-bit two's complement 51 1.1.4.2 skrll * integer in steps of 0.5C. The following examples are taken from 52 1.1.4.2 skrll * the LM75 data sheet: 53 1.1.4.2 skrll * 54 1.1.4.2 skrll * +125C 0 1111 1010 0x0fa 55 1.1.4.2 skrll * +25C 0 0011 0010 0x032 56 1.1.4.2 skrll * +0.5C 0 0000 0001 0x001 57 1.1.4.2 skrll * 0C 0 0000 0000 0x000 58 1.1.4.2 skrll * -0.5C 1 1111 1111 0x1ff 59 1.1.4.2 skrll * -25C 1 1100 1110 0x1ce 60 1.1.4.2 skrll * -55C 1 1001 0010 0x192 61 1.1.4.2 skrll */ 62 1.1.4.2 skrll 63 1.1.4.2 skrll #define LM75_REG_TEMP 0x00 64 1.1.4.2 skrll #define LM75_REG_CONFIG 0x01 65 1.1.4.2 skrll #define LM75_REG_THYST_SET_POINT 0x02 66 1.1.4.2 skrll #define LM75_REG_TOS_SET_POINT 0x03 67 1.1.4.2 skrll 68 1.1.4.2 skrll #define LM75_TEMP_LEN 2 /* 2 data bytes */ 69 1.1.4.2 skrll 70 1.1.4.2 skrll #define LM75_CONFIG_SHUTDOWN 0x01 71 1.1.4.2 skrll #define LM75_CONFIG_CMPINT 0x02 72 1.1.4.2 skrll #define LM75_CONFIG_OSPOLARITY 0x04 73 1.1.4.2 skrll #define LM75_CONFIG_FAULT_QUEUE_1 (0 << 3) 74 1.1.4.2 skrll #define LM75_CONFIG_FAULT_QUEUE_2 (1 << 3) 75 1.1.4.2 skrll #define LM75_CONFIG_FAULT_QUEUE_4 (2 << 3) 76 1.1.4.2 skrll #define LM75_CONFIG_FAULT_QUEUE_6 (3 << 3) 77 1.1.4.2 skrll 78 1.1.4.2 skrll #endif /* _DEV_I2C_LM75REG_H_ */ 79
Indexes created Mon Oct 27 08:10:08 GMT 2025