
Software Functional Overview
3-34
FIC A360 Service Manual
Object
Description
_ACx
Returns Active trip point in tenths Kelvin
_ALx
List of pointers to active cooling device objects
_CRT
Returns critical trip point in tenths Kelvin
_PSL
List of pointers to passive cooling device objects
_PSV
Returns Passive trip point in tenths Kelvin
_SCP
Sets user cooling policy (Active or Passive)
_TC1
Thermal constant for Passive cooling
_TC2
Thermal constant for Passive cooling
_TMP
Returns current temperature in tenths Kelvin
_TSP
Thermal sampling period for Passive cooling in tenths of seconds
_ACx
This control method returns the temperature at which the OS must start or stop Active
cooling, where
x
is a value between 0 and 9 that designates multiple active cooling levels of
the thermal zone. If the Active cooling device has one cooling level (that is, n”) then that
cooling level is named _AC0. If the cooling device has two levels of capability, such as a
high fan speed and a low fan speed, then they are named _AC0 and _AC1 respectively. The
smaller the value of
x
, the greater the cooling strength _AC
x
represents. In the above example,
_AC0 represents the greater level of cooling (the faster fan speed) and _AC1 represents the
lesser level of cooling (the slower fan speed). For every AC
x
method, there must be a
matching AL
x
method.
Arguments: None.
Result Code: Temperature in tenths Kelvin
The result code is an integer value that describes up to 0.1 precisions in Kelvin. For example,
300.0K are represented by the integer 3000.
_ALx
This object evaluates to a list of Active cooling devices to be turned on when the associated
_ACx trip point is exceeded. For example, these devices could be fans.
_CRT
This control method returns the critical temperature at which the OS must shutdown the
system.
Arguments: None.
Result Code: Temperature in tenths Kelvin
The result is an integer value that describes up to 0.1 precisions in Kelvin. For example,
300.0K are represented by the integer 3000.
_PSL
This object evaluates to a list of processor objects to be used for Passive cooling.