swh:1:snp:173f8deb0c56c557784b4fd217e7608ac6197844
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Tip revision: a1b8638ba1320e6684aa98233c15255eb803fac7 authored by Linus Torvalds on 27 September 2020, 21:38:10 UTC
Linux 5.9-rc7
Tip revision: a1b8638
sch5627.rst
Kernel driver sch5627
=====================

Supported chips:

  * SMSC SCH5627

    Prefix: 'sch5627'

    Addresses scanned: none, address read from Super I/O config space

    Datasheet: Application Note available upon request

Author: Hans de Goede <hdegoede@redhat.com>


Description
-----------

SMSC SCH5627 Super I/O chips include complete hardware monitoring
capabilities. They can monitor up to 5 voltages, 4 fans and 8 temperatures.

The SMSC SCH5627 hardware monitoring part also contains an integrated
watchdog. In order for this watchdog to function some motherboard specific
initialization most be done by the BIOS, so if the watchdog is not enabled
by the BIOS the sch5627 driver will not register a watchdog device.

The hardware monitoring part of the SMSC SCH5627 is accessed by talking
through an embedded microcontroller. An application note describing the
protocol for communicating with the microcontroller is available upon
request. Please mail me if you want a copy.
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