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BIOS USER GUIDE
USB Conguraon Parameters.
Enables Legacy USB support. AUTO opon disables legacy support if no USB devices are
connected. DISABLE opon will keep USB devices available only for EFI applicaons.
THis is a workaround for OSes without XHCI hand-o support. THe CHCI ownership change should
be claimed by XHCI driver.
Enable/Disable USB Mas Storage Driver Support.
The me-out value for Control, Bulk, and Interrupt transfers.
USB mass storage device Start Unit command me-out.
Device power-up delay
Maximum me the device will take before it properly reports itself to the HOst Controller.
‘Auto’ uses default value: for a Root port it is 100ms, for a Hub port the delay is taken from Hub
descriptor.
Device power-up delay in seconds
Delay range is 1..40 secinds, in one second increments.
USB FLASH DRIVE PMAP
This item Mass storage device emulaon type. ‘AUTO‘ enumerates devices according to their
media format. Opcal drives are emulated as ‘CDROM’ , drives with no media will be emulated
according to a drive type.
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