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A55MLC2/A55MLV2/A55MGC UEFI BIOS Manual
USB Configuration
Legacy USB Support
This item determines if the BIOS should provide legacy support for USB devices
like the keyboard, mouse, and USB drive. This is a useful feature when using such
USB devices with operating systems that do not natively support USB (e.g.
Microsoft DOS or Windows NT).
Options:
Enabled (Default) / Disabled / Auto
EHCI Hand-Off
This is a workaround for OSes without EHCI hand-off support. The EHCI ownership
change should be claimed by EHCI driver.
Options:
Disabled (Default) / Enabled
Mass Storage Devices:
Mass storage device emulation type 'Auto' enumerates devices according to their
media format. Optical drives are emulated as 'CDROM', drives with no media will
be emulated according to a drive type.
Options:
Auto (Default) / Floppy / Forced FDD / Hard Disk / CD-ROM
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