From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- Documentation/hwmon/max6620.rst | 46 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 Documentation/hwmon/max6620.rst (limited to 'Documentation/hwmon/max6620.rst') diff --git a/Documentation/hwmon/max6620.rst b/Documentation/hwmon/max6620.rst new file mode 100644 index 000000000..84c1c44d3 --- /dev/null +++ b/Documentation/hwmon/max6620.rst @@ -0,0 +1,46 @@ +.. SPDX-License-Identifier: GPL-2.0-or-later + +Kernel driver max6620 +===================== + +Supported chips: + + Maxim MAX6620 + + Prefix: 'max6620' + + Addresses scanned: none + + Datasheet: http://pdfserv.maxim-ic.com/en/ds/MAX6620.pdf + +Authors: + - L\. Grunenberg + - Cumulus Networks + - Shuotian Cheng + - Arun Saravanan Balachandran + +Description +----------- + +This driver implements support for Maxim MAX6620 fan controller. + +The driver configures the fan controller in RPM mode. To give the readings more +range or accuracy, the desired value can be set by a programmable register +(1, 2, 4, 8, 16 or 32). Set higher values for larger speeds. + +The driver provides the following sensor access in sysfs: + +================ ======= ===================================================== +fan[1-4]_alarm ro Fan alarm. +fan[1-4]_div rw Sets the nominal RPM range of the fan. Valid values + are 1, 2, 4, 8, 16 and 32. +fan[1-4]_input ro Fan speed in RPM. +fan[1-4]_target rw Desired fan speed in RPM. +================ ======= ===================================================== + +Usage notes +----------- + +This driver does not auto-detect devices. You will have to instantiate the +devices explicitly. Please see Documentation/i2c/instantiating-devices.rst for +details. -- cgit v1.2.3