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Re: How to handle wake up from sleep
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Re: How to handle wake up from sleep

  • Subject: Re: How to handle wake up from sleep
  • From: Ethan Bold <email@hidden>
  • Date: Tue, 10 Feb 2009 13:43:14 -0800
I'd recommend you read this if you haven't already:

http://developer.apple.com/documentation/devicedrivers/conceptual/IOKitFundamentals/PowerMgmt/chapter_10_section_1.html#//apple_ref/doc/uid/TP0000020-BABCCBIJ

Do you call PMinit(), joinPMtree(), registerPowerDriver() in your driver? See "implementing basic power management" section in the IOKitFundamentals document.

-EThan

On Feb 9, 2009, at 6:58 PM, searockcliff wrote:

Hello,
My driver (kext) is one USB driver.
Whey system goes to sleep, I plugout then plugin the USB device.
Then the system wakes up, but my driver cannot respond to any request, it seems that it is still in sleep mode.
 
I have registered a function handlePowerEvent to handle sleep.
But it only handles kIOMessageCanSystemSleep and kIOMessageSystemWillNotSleep, why is there no message type for Wake up?
 
Regards,
Boyd



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References: 
 >How to handle wake up from sleep (From: searockcliff <email@hidden>)

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