Intermec 6100 Reference Guide

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Table 4Ć8 

Power State

Description

READY

No action

STANDBY

No action

SUSPEND

The system is placed into SUSPEND.  Any APMĆdisabled devices are
left in the power state they were set to before entering suspend.

OFF

Same as SUSPEND

PROCESSING No action is performed
REJECTED

No action is performed

Table 4Ć9 

Power State Description
READY

The backlight is turned on.

STANDBY

(not defined)

SUSPEND

(not defined)

OFF

The backlight is turned off

The following paragraphs describe the software interface between the APM

BIOS and the APM driver.  Refer to the Conversions and Interfaces section of this

publication for details of the actual BIOS interrupts.

The APM driver provides an interface between the APM BIOS and APMĆaware

applications.  When the interface between the APM BIOS and device driver is

established, the APM driver receives powerĆrelated events from the APM BIOS,

which the driver in turn broadcasts to APMĆaware applications.
The APM Installation Check function determines whether ELANAPM.EXE is

present in the system, the version of APM that ELANAPM.EXE supports, and

the attributes of the implementation.  The APM driver issues an APM ConnecĆ

tion call to establish the appropriate cooperative connection with the APM BIOS.

The APM Interface Disconnect function disconnects the cooperative connection

between the APM Driver and the APM BIOS.  Only one APM connection can be

active at a time.

Power Management Events are communicated from the APM BIOS to the APM

driver through a call by the APM driver to the APM BIOS function Get PM

Event.  It is the responsibility of the APM driver to broadcast Power ManageĆ

ment Events to its APMĆaware applications.