Intermec 6100 Reference Guide

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Possible wakeup events (sources) are plentiful and are defined by the 6100 ComĆ

puter as follows:

"

ON/OFF button press

"

MODEM ring indicator

"

PC Card MODEM ring indicator

"

POD 1 ring indicator

"

Real Time Clock Alarm expiration

"

Application of external power (charge)

Wakeup events can be set or masked via OEM APM function calls Get Wakeup

Mask and Set Wakeup mask.

Devices may be powerĆmanaged either by the system APM BIOS, APM device

driver, or APMĆaware application via the Set Power State function.
Device drivers or applications that control device power should be aware that,

when the system enters System Suspend, all peripheral devices managed by the

driver or application loses power during System Suspend, but is restored to the

previous power state upon System Resume.
Device drivers or applications that use the Enable/Disable Device Power ManĆ

agement function can override this functionality during Suspend.  These drivers

or applications take sole responsibility for device power management during SusĆ

pend.  This feature allows system devices, the operating system, or application to

tell the BIOS to stop power managing a particular device, after which operatingĆ

systemĆspecific drivers or applications for that device may directly take over powĆ

er management.
Devices may be requested to be placed into any one of the following states via

the Set Power State function.

Table 4Ć1 

State

Description

Ready

The device is in its fullĆpower state.

Standby

The device is capable of doing some work but is in a lowĆpower state.

Suspend

The device is not capable of doing work and is in its lowest power state

Off

The device is not capable of doing work and is in its lowest power state

The power states for each device in a 6100 Computer are defined as follows:

Table 4Ć2 

Power State Description
READY

Enables LCD and places VGA controller into fullĆpower state

STANDBY

VGA registers and memory are accessible.  LCD is OFF.

SUSPEND

VGA controller placed into hardware suspend

OFF

Same as SUSPEND