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Command: g760a | Section: 4 | Source: NetBSD | File: g760a.4
G760A(4) FreeBSD Kernel Interfaces Manual G760A(4)
NAME
g760a - Global Mixed-mode Technology Inc. G760a fan speed controller
driver
SYNOPSIS
g760a0 at iic? addr 0x3e
DESCRIPTION
The g760a driver provides support for the Global Mixed-mode Technology
Inc. G760a on iicbus fan speed controller to be used with the envsys(4)
API. This chip could be found in D-Link's DNS-323 NAS box.
The following sysctl(8) variable controls the fan's speed:
machdep.g760a0.rpm
This value specifies the desired speed for the fan. Valid range
is 2000..20000 or 0 (the fan is turned off). The default value
is 0.
When setting the desired speed the RPM number will be converted
to the internal representation and truncated. For example when
you are setting 2000 it will be truncated to 2006, and 8000 will
be changed to 8057.
SEE ALSO
envsys(4), lm(4), envstat(8)
AUTHORS
The g760a driver was written by A. Leo.
FreeBSD 14.1-RELEASE-p8 April 11, 2008 FreeBSD 14.1-RELEASE-p8