[coreboot] Can boards wake up from S3/4/5 by specific keystroke

[Zheng Bao]

ping.

Any idea?


Zheng


________________________________
From: coreboot <coreboot-bounces at coreboot.org> on behalf of Zheng Bao <fishbaoz at hotmail.com>
Sent: Thursday, August 25, 2016 11:05 AM
To: coreboot at coreboot.org
Subject: [coreboot] Can boards wake up from S3/4/5 by specific keystroke


All,

Some customers says ThinkCentre M6600q (lenovo) has the feature of wake up the system by pressing ALT-P on USB keyboard.

I am wondering how it is implemented? Is it done in chipset, BIOS, or a special keyboard?


Or when the BIOS wakeup, it reads the keystroke to see if it matches the pre-defined key. Does it sounds reasonable?


Zheng
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