12.5 Audio volume output control
Use Volume Up/Down/Mute button to Increasing/Decreasing/Mute
audio volume respectively. EC only to send scan code to OS.
When volume up and volume down to press at the same time, The EC
will send mute scan code to OS.
12.6 External Buttons status report and control
12.6.1 Power Switch (Push button)
Lid switch must not press.
If system is Off/Hibernate: System will be turned on while Power switch
is depressed by more than 100 ms with AC insert and 250 ms without AC
insert.
If system is in Standby state: System will resume while Power switch is
depressed by more than 50 ms.
If system on: depress this button for 4 seconds will turn off power.
12.6.2 Wireless Device button
It will enable/disable Wireless function. The status will be keep when
resume from S3 and S4.
12.6.3 Touch pad on/off Button
Press touch pad on/off button will toggle the internal touch pad
enable/disable status. The status will be keep when resume from S3 and
S4
12.6.4 Lid Switch
When user close panel the lid switch will be pressed. And EC-FW will
generate lid event to notify OS. In order to prevent OS hang up during
operation power management functions. The lid event will not pass to OS
after last lid event generated 5 second.
Lid switch can wake up the system from stand by or hibernation no
matter battery only or AC power exist.
12.6.5 General Button 1 (Not supported)
System off mode: Press this button, EC will turn on system to launch
Application. (This function needs “ToshibaControl” utility support).
System on mode: ToshibaControl driver is loaded, press this application
will issue scan codes [0xE0,0x13,0xE0,0x93] to driver.
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