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SDTEMP(4) BSD Kernel Interfaces Manual SDTEMP(4) NAME
sdtemp -- JEDEC JC-42.4 compatible memory module temperature sensors SYNOPSIS
sdtemp* at iic? addr 0x18 sdtemp* at iic? addr 0x19 sdtemp* at iic? addr 0x1a sdtemp* at iic? addr 0x1b sdtemp* at iic? addr 0x1c sdtemp* at iic? addr 0x1d sdtemp* at iic? addr 0x1e sdtemp* at iic? addr 0x1f DESCRIPTION
The sdtemp driver provides support for the Microchip Technology MCP9805/98242 and other chips that conform to JEDEC Standard 21-C section 4.7. Memory module temperature sensors are optional on DDR2 and DDR3 SDRAM DIMMs. Sensors provided by this driver, including the on-chip thresholds for the Alarm Window and Critical level, are accessed through the envsys(4) API. The sdtemp supports temperature ranges from -256 to +255 degrees C. Chips supported by the sdtemp driver include: o Catalyst CAT34TS02 and CAT6095 o Analog Devices ADT7408 o Integrated Deviced Technology TSE2002B3 and TSE3000B3 o Maxim MAX6604 o Microchip Technology MCP9805, MCP9843, MCP98242, and MCP98243 o NXP Semiconductors SE97 and SE98 o STmicroelectronics STTS424 and STTS424E SEE ALSO
envsys(4), envstat(8) HISTORY
The sdtemp device appeared in NetBSD 6.0. BUGS
Interrupt support is unimplemented. BSD
January 8, 2011 BSD