User Manual

Software Setup
82 AT8060
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5.1.4.8 USB Configuration sub-menu
Feature Option Description Help text
USB Configuration Subtitle
USB Devices: Display only
Legacy USB Support
Enabled, 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.
EHCI Hand-off Disabled, Enabled
This is a workaround for
OSes without EHCI hand-
off support. The EHCI
ownership change
should be claimed by
EHCI driver.
Port 60/64 Emulation Disabled, Enabled
Enables I/O port 60h/
64h emulation support.
This should be enabled
for the complete USB
keyboard legacy support
for non-USB aware OSes.
USB hardware delays and
time-outs:
Subtitle
USB transfer time-out
1 sec, 5 sec, 10 sec,
20 sec
The time-out value for
Control, Bulk, and
Interrupt transfers.
Device reset time-out
10 sec, 20 sec, 30
sec, 40 sec
USB mass storage device
Start Unit command
time-out.