sdtemp(4) - NetBSD Manual Pages

SDTEMP(4)               NetBSD 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 newer 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 TSE2004av compliant devices and: · Analog Devices ADT7408 · Atmel AT30TS00 and AT30TSE004 · On semiconductor (Catalyst) CAT34TS02, CAT34TS02C, CAT34TS04 and CAT6095 · Giantec Semiconductor GT30TS00 and GT34TS02 · Integrated Deviced Technology TSE2002B3, TSE2002GB2, TSE2004GB2, TS3000B3, TS3000GB0, TS3000GB2, and TS30001GB2 · Maxim MAX6604 · Microchip Technology EMC1501, MCP9804, MCP9805, MCP9843, MCP98242, MCP98243, and MCP98244 · NXP Semiconductors SE97 and SE98 · STmicroelectronics STTS424, STTS424E, STTS2002, STTS2004, and STTS3000
SEE ALSO
envsys(4), envstat(8)
HISTORY
The sdtemp device appeared in NetBSD 6.0.
BUGS
Interrupt support is unimplemented. NetBSD 9.4_STABLE February 22, 2018 NetBSD 9.4_STABLE

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