IBASE Technology AGS103T, User Manual, Page: 65 / 82

BIOS Setup
AGS103T User Manual 57
4
4.4.7 USB Configuration
BIOS Setting Description
Legacy USB
Support
Enables / Disables Legacy USB support.
•
Auto disables legacy support if there is no USB
device connected.
•
Disable keeps USB devices available only for EFI
applications.
XHCI Hand-pff
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 USB mass storage driver support.
USB Transfer
time-out Sets the time-out value 1, 5, 10 or 20 sec(s) for
Control, Bulk, and Interrupt transfers.
Device reset
time-out
Sets the seconds (10, 20, 30, 40 secs) of delaying
execution of start unit command to USB mass storage
device.
Device power-up
delay
The maximum time the device will take before it
properly reports itself to the Host Controller.
Auto uses default value. For a Root port, it is 100 ms.
For a Hub port, the delay is taken from Hub descriptor.
Generic Ultra
MS-COMBO
Mas 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