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v0.5.1
https://github.com/torvalds/linux
02 December 2023, 22:23:51 UTC
Revision 28d0325ce6e0a52f53d8af687e6427fee59004d3 authored by Linus Torvalds on 24 June 2009, 23:25:37 UTC, committed by Linus Torvalds on 24 June 2009, 23:25:37 UTC 
Linux 2.6.31-rc1
1 parent 236e946
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Tip revision: 28d0325ce6e0a52f53d8af687e6427fee59004d3 authored by Linus Torvalds on 24 June 2009, 23:25:37 UTC
Linux 2.6.31-rc1
Tip revision: 28d0325
ics932s401 
Kernel driver ics932s401
======================

Supported chips:
  * IDT ICS932S401
    Prefix: 'ics932s401'
    Addresses scanned: I2C 0x69
    Datasheet: Publically available at the IDT website

Author: Darrick J. Wong

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

This driver implements support for the IDT ICS932S401 chip family.

This chip has 4 clock outputs--a base clock for the CPU (which is likely
multiplied to get the real CPU clock), a system clock, a PCI clock, a USB
clock, and a reference clock.  The driver reports selected and actual
frequency.  If spread spectrum mode is enabled, the driver also reports by what
percent the clock signal is being spread, which should be between 0 and -0.5%.
All frequencies are reported in KHz.

The ICS932S401 monitors all inputs continuously. The driver will not read
the registers more often than once every other second.

Special Features
----------------

The clocks could be reprogrammed to increase system speed.  I will not help you
do this, as you risk damaging your system!
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