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RequestExtraPower

Clients can use this API to reserve extra power for use by this device while the machine is asleep or while it is awake. Units are milliAmps (mA).

Declaration

virtual UInt32 RequestExtraPower(
 UInt32type,
 UInt32requestedPower);

Parameters

  • type:

    Indicates whether the power is to be used during wake or sleep (One of kUSBPowerDuringSleep or kUSBPowerDuringWake)

  • requestedPower:

    Amount of power desired, in mA

Return Value

Amount of power actually reserved, in mA. It can be less than the requested or zero.

See Also

Miscellaneous