X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=Documentation%2Fhwmon%2Flm90;h=f3efd18e87f402ac3ba346ae15da07119f392fa6;hb=05d3962cc921c51059df69488c7f70ab8b6a5d88;hp=fa475c0a48a34330e98b412e896013881dd6c50d;hpb=c0caf7bcbfedb3f79ccec759b221bfef0646ada3;p=pandora-kernel.git diff --git a/Documentation/hwmon/lm90 b/Documentation/hwmon/lm90 index fa475c0a48a3..f3efd18e87f4 100644 --- a/Documentation/hwmon/lm90 +++ b/Documentation/hwmon/lm90 @@ -32,6 +32,16 @@ Supported chips: Addresses scanned: I2C 0x4c and 0x4d Datasheet: Publicly available at the ON Semiconductor website http://www.onsemi.com/PowerSolutions/product.do?id=ADT7461 + * Analog Devices ADT7461A + Prefix: 'adt7461a' + Addresses scanned: I2C 0x4c and 0x4d + Datasheet: Publicly available at the ON Semiconductor website + http://www.onsemi.com/PowerSolutions/product.do?id=ADT7461A + * ON Semiconductor NCT1008 + Prefix: 'nct1008' + Addresses scanned: I2C 0x4c and 0x4d + Datasheet: Publicly available at the ON Semiconductor website + http://www.onsemi.com/PowerSolutions/product.do?id=NCT1008 * Maxim MAX6646 Prefix: 'max6646' Addresses scanned: I2C 0x4d @@ -149,7 +159,7 @@ ADM1032: * ALERT is triggered by open remote sensor. * SMBus PEC support for Write Byte and Receive Byte transactions. -ADT7461: +ADT7461, ADT7461A, NCT1008: * Extended temperature range (breaks compatibility) * Lower resolution for remote temperature @@ -195,9 +205,9 @@ are exported, one for each channel, but these values are of course linked. Only the local hysteresis can be set from user-space, and the same delta applies to the remote hysteresis. -The lm90 driver will not update its values more frequently than every -other second; reading them more often will do no harm, but will return -'old' values. +The lm90 driver will not update its values more frequently than configured with +the update_interval attribute; reading them more often will do no harm, but will +return 'old' values. SMBus Alert Support ------------------- @@ -205,11 +215,12 @@ SMBus Alert Support This driver has basic support for SMBus alert. When an alert is received, the status register is read and the faulty temperature channel is logged. -The Analog Devices chips (ADM1032 and ADT7461) do not implement the SMBus -alert protocol properly so additional care is needed: the ALERT output is -disabled when an alert is received, and is re-enabled only when the alarm -is gone. Otherwise the chip would block alerts from other chips in the bus -as long as the alarm is active. +The Analog Devices chips (ADM1032, ADT7461 and ADT7461A) and ON +Semiconductor chips (NCT1008) do not implement the SMBus alert protocol +properly so additional care is needed: the ALERT output is disabled when +an alert is received, and is re-enabled only when the alarm is gone. +Otherwise the chip would block alerts from other chips in the bus as long +as the alarm is active. PEC Support -----------