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USB Configuration
Feature
Option
Legacy USB Support
Auto
Disabled
Enabled
Port 64/60 Emulation
Disabled
Enabled
USB 2.0 Controller Mode
FullSpeed
HiSpeed
BIOS EHCI Hand-Off
Disabled
Enabled
USB reset delay
Disabled
Enabled
69
Description
Enables support for legacy USB. Auto option disables legacy support if no USB devices are connected.
Enables IO port 60h/64h emuluation support.
Configures the USB 2.0 controller in HiSpeed (480Mbps) or FullSpeed (12Mbps)
This is a workaround for an OS without EHCI hand-off support. The EHCI ownership change should claim by the EHCI driver
Enables extra delay after reset during USB initialization.
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