NAME
acpifan —
ACPI Fan
SYNOPSIS
acpifan* at acpi?
DESCRIPTION
Theacpifan device driver supports fans possibly exposed
by the BIOS. Even if a system contains only one physical fan, multiple
acpifan instances may be present. In such cases each
acpifan typically represents an
acpitz(4) thermal zone, and the combined state of all instances reveals
the speed of the fan.
The acpifan driver does not support
controlling the fan. The current state (on or off) is made available through
the envsys(4) API and the
envstat(8) command.
SEE ALSO
HISTORY
The acpifan device driver appeared in
NetBSD 6.0.
AUTHORS
Jukka Ruohonen ⟨jruohonen@iki.fi⟩
BUGS
The acpifan driver does not yet support
additional functionality introduced in the ACPI 4.0 specification.