1.\" $NetBSD: sdtemp.4,v 1.8 2018/02/23 16:32:44 wiz 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 February 22, 2018 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 Microchip Technology 49MCP9805/98242 and other chips that conform to JEDEC Standard 21-C section 504.7. 51Memory module temperature sensors are optional on DDR2 and newer DIMMs. 52Sensors provided by this driver, including the on-chip thresholds for the 53Alarm Window and Critical level, are accessed through the 54.Xr envsys 4 55API. 56.Pp 57The 58.Nm 59supports temperature ranges from -256 to +255 degrees C. 60.Pp 61Chips supported by the 62.Nm 63driver include TSE2004av compliant devices and: 64.Bl -bullet -offset indent 65.It 66Analog Devices ADT7408 67.It 68Atmel AT30TS00 and AT30TSE004 69.It 70On semiconductor (Catalyst) CAT34TS02, CAT34TS02C, CAT34TS04 71and CAT6095 72.It 73Giantec Semiconductor GT30TS00 and GT34TS02 74.It 75Integrated Deviced Technology TSE2002B3, TSE2002GB2, TSE2004GB2, 76TS3000B3, TS3000GB0, TS3000GB2, and TS30001GB2 77.It 78Maxim MAX6604 79.It 80Microchip Technology EMC1501, MCP9804, MCP9805, MCP9843, MCP98242, 81MCP98243, and MCP98244 82.It 83NXP Semiconductors SE97 and SE98 84.It 85STmicroelectronics STTS424, STTS424E, STTS2002, STTS2004, and 86STTS3000 87.El 88.Sh SEE ALSO 89.Xr envsys 4 , 90.Xr envstat 8 91.Sh HISTORY 92The 93.Nm 94device appeared in 95.Nx 6.0 . 96.Sh BUGS 97Interrupt support is unimplemented. 98