1.\" $NetBSD: sdtemp.4,v 1.6 2016/07/28 09:11:14 msaitoh Exp $ 2.\" 3.\" Copyright (c) 2008 The NetBSD Foundation, Inc. 4.\" All rights reserved. 5.\" 6.\" This code is derived from software contributed to The NetBSD Foundation 7.\" by Paul Goyette. 8.\" 9.\" Redistribution and use in source and binary forms, with or without 10.\" modification, are permitted provided that the following conditions 11.\" are met: 12.\" 1. Redistributions of source code must retain the above copyright 13.\" notice, this list of conditions and the following disclaimer. 14.\" 2. Redistributions in binary form must reproduce the above copyright 15.\" notice, this list of conditions and the following disclaimer in the 16.\" documentation and/or other materials provided with the distribution. 17.\" 18.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 19.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 20.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 21.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 22.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28.\" POSSIBILITY OF SUCH DAMAGE. 29.\" 30.Dd July 28, 2016 31.Dt SDTEMP 4 32.Os 33.Sh NAME 34.Nm sdtemp 35.Nd JEDEC JC-42.4 compatible memory module temperature sensors 36.Sh SYNOPSIS 37.Cd "sdtemp* at iic? addr 0x18" 38.Cd "sdtemp* at iic? addr 0x19" 39.Cd "sdtemp* at iic? addr 0x1a" 40.Cd "sdtemp* at iic? addr 0x1b" 41.Cd "sdtemp* at iic? addr 0x1c" 42.Cd "sdtemp* at iic? addr 0x1d" 43.Cd "sdtemp* at iic? addr 0x1e" 44.Cd "sdtemp* at iic? addr 0x1f" 45.Sh DESCRIPTION 46The 47.Nm 48driver provides support for the 49.Tn Microchip Technology 50MCP9805/98242 and other chips that conform to JEDEC Standard 21-C section 514.7. 52Memory module temperature sensors are optional on DDR2 and newer DIMMs. 53Sensors provided by this driver, including the on-chip thresholds for the 54Alarm Window and Critical level, are accessed through the 55.Xr envsys 4 56API. 57.Pp 58The 59.Nm 60supports temperature ranges from -256 to +255 degrees C. 61.Pp 62Chips supported by the 63.Nm 64driver include TSE2004av compliant devices and: 65.Pp 66.Bl -bullet -offset indent 67.It 68.Tn Analog Devices 69.Em ADT7408 70.It 71.Tn Atmel 72.Em AT30TS00 73and 74.Em AT30TSE004 75.It 76.Tn On semiconductor (Catalyst) 77.Em CAT34TS02 , 78.Em CAT34TS02C , 79.Em CAT34TS04 80and 81.Em CAT6095 82.It 83.Tn Giantec Semiconductor 84.Em GT30TS00 85and 86.Em GT34TS02 87.It 88.Tn Integrated Deviced Technology 89.Em TSE2002B3 , 90.Em TSE2002GB2 , 91.Em TSE2004GB2 , 92.Em TS3000B3 , 93.Em TS3000GB0 , 94.Em TS3000GB2 95and 96.Em TS30001GB2 97.It 98.Tn Maxim 99.Em MAX6604 100.It 101.Tn Microchip Technology 102.Em MCP9804 , 103.Em MCP9805 , 104.Em MCP9843 , 105.Em MCP98242 , 106.Em MCP98243 107and 108.Em MCP98244 109.It 110.Tn NXP Semiconductors 111.Em SE97 112and 113.Em SE98 114.It 115.Tn STmicroelectronics 116.Em STTS424 , 117.Em STTS424E , 118.Em STTS2002 , 119.Em STTS2004 120and 121.Em STTS3000 122.El 123.Sh SEE ALSO 124.Xr envsys 4 , 125.Xr envstat 8 126.Sh HISTORY 127The 128.Nm 129device appeared in 130.Nx 6.0 . 131.Sh BUGS 132Interrupt support is unimplemented. 133