From cd6c8a4297ad036a155966db49982d6807e23ef8 Mon Sep 17 00:00:00 2001 From: Robert Coulson Date: Wed, 8 May 2013 22:45:53 -0700 Subject: hwmon: (ds1621) Add ds1721 chip support Update the ds1621 documentation, driver, and Kconfig with ds1721 chip support. Signed-off-by: Robert Coulson Signed-off-by: Guenter Roeck --- Documentation/hwmon/ds1621 | 26 ++++++++++++++++++++------ 1 file changed, 20 insertions(+), 6 deletions(-) (limited to 'Documentation/hwmon/ds1621') diff --git a/Documentation/hwmon/ds1621 b/Documentation/hwmon/ds1621 index 5e97f333c4df..d66f76f9d85d 100644 --- a/Documentation/hwmon/ds1621 +++ b/Documentation/hwmon/ds1621 @@ -2,16 +2,22 @@ Kernel driver ds1621 ==================== Supported chips: - * Dallas Semiconductor DS1621 + * Dallas Semiconductor / Maxim Integrated DS1621 Prefix: 'ds1621' Addresses scanned: I2C 0x48 - 0x4f - Datasheet: Publicly available at the Dallas Semiconductor website - http://www.dalsemi.com/ + Datasheet: Publicly available from www.maximintegrated.com + * Dallas Semiconductor DS1625 - Prefix: 'ds1621' + Prefix: + 'ds1621' - if binding via _detect function + 'ds1625' - explicit instantiation + Addresses scanned: I2C 0x48 - 0x4f + Datasheet: Publicly available from www.datasheetarchive.com + + * Maxim Integrated DS1721 + Prefix: 'ds1721' Addresses scanned: I2C 0x48 - 0x4f - Datasheet: Publicly available at the Dallas Semiconductor website - http://www.dalsemi.com/ + Datasheet: Publicly available from www.maximintegrated.com Authors: Christian W. Zuckschwerdt @@ -61,3 +67,11 @@ with neither of the alarms set. Temperature conversion of the DS1621 takes up to 1000ms; internal access to non-volatile registers may last for 10ms or below. + +The DS1625 is pin compatible and functionally equivalent with the DS1621, +but the DS1621 is meant to replace it. + +The DS1721 is pin compatible with the DS1621, has an accuracy of +/- 1.0 +degree Celsius over a -10 to +85 degree range, a minimum/maximum alarm +default setting of 75 and 80 degrees respectively, and a maximum conversion +time of 750ms. -- cgit