Contec GMB-AQ675-LLVA, User Manual

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GMB-AQ675-LLVA
User’s Manual
GMB-AQ675-LLVA
User’s Manual
53
2.4.8 USB Configuration
USB Configuration Parameters

USB Device
Display how many devices are connected.

Legacy USB Support [Enabled]
Enables Legacy USB support. AUTO option disables legacy support if no USB devices are
connected. DISABLE option will keep USB devices available only for EFI applications.
Configuration options: [Enabled] [Disabled][Auto]

EHCI Hand-off [Disable]
This is a workaround for OSes without EHCI hand-off support. The EHCI ownership change
should be claimed by EHCI driver.
Configuration options: [Disabled] [Enabled]

Port 60/64 Emulation [Enabled]
Enables I/O port 60h/64h emulation support. This should be enabled for complete USB
keyboard legacy support for non-USB aware OSes.
Configuration options: [Disabled] [Enabled]