Fortec Star iBase IB956, Руководство пользователя

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BIOS Setup
IB956 User’s Manual
57
4
4.4.10 USB Configuration
BIOS Setting Description
Legacy USB
Support
•
Enabled enables Legacy USB support.
•
Auto disables legacy support if there is no USB
device connected.
•
Disabled keeps USB devices available only for
EFI applications.
XHCI Hand-off
This is a workaround for OSes without XHCI
hand-off support. The XHCI ownership change
should be claimed by XHCI driver.
USB Mass Storage
Driver Support Enables / Disables the support for USB mass
storage driver.
USB Transfer
time-out The time-out value (1 / 5 10 / 20 secs) for Control,
Bulk, and Interrupt transfers.
Device reset
time-out
Gives seconds (10 / 20 / 30 / 40 secs) to delay
execution of Start Unit command to USB mass
storage device.
Device power-up
delay
Max.time 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.
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 medial will be emulated according to
a drive type.