
EMS-BYT Series
66 EMS-BYT Series Quick Reference Guide
UEFI and Legacy
Legacy only[Default]
UEFI only
This option controls Legacy/UEFI ROMs
priority.
Do not launch[Default]
UEFI only
Legacy only
Controls the execution of UEFI and Legacy
PXE OpROM.
Do not launch
UEFI only
Legacy only[Default]
Controls the execution of UEFI and Legacy
Storage OpROM.
Do not launch
UEFI only
Legacy only[Default]
Controls the execution of UEFI and Legacy
Video OpROM.
UEFI only
Legacy only[Default],
Determines OpROM execution policy for
devices other than Network, Storage, or
Video.
3.6.2.11 USB Configuration
The USB Configuration menu helps read USB information and configures USB settings.
Enabled[Default]
Disabled
Auto
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.
Enabled[Default]
Disabled
This is a workaround for OSew without XHCI
hand-off support. The XHCI ownership change
should be claimed by XHCI driver.
Enabled
Disabled[Default]
This is a workaround for OSes without EHCI
hand-off support. The EHCI ownership change
should be claimed by EHCI driver.
USB Mass Storage Driver Support
Enabled[Default]
Disabled
Enable/Disable USB Mass Storage Driver
Support.
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