Advanced Power Management - Avalue Technology ERX-B75 User Manual

ERX-B75 User's Manual
Item
Legacy USB Support
XHCI Hand-off
EHCI Hand-off
Port 60/64 Emulation
USB transfer time-out
Device reset time-out
Device power-up delay
Generic STORAGE
DEVICE 9407

3.6.2.7 Advanced Power Management

34 ERX-B75 User's Manual
Options
Enabled[Default]
Disabled
Auto
Enabled[Default]
Disabled
Enabled
Disabled[Default]
Enabled[Default]
Disabled
1 sec
5 sec
10 sec
20 sec[Default]
10 sec
20 sec[Default]
30 sec
40 sec
Auto[Default]
Manual
Auto[Default]
Floppy
Forced FDD
Hard Disk
CD-ROM
Description
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.
This is a workaround for OSes without XHCI
hand-off support. The XHCI ownership change
should be claimed by XHCI driver.
This is a workaround for OSes without EHCI
hand-off support. The EHCI ownership change
should be claimed by EHCI driver.
Enable I/O port 60h/64h emulation support. This
should be enabled for the complete USB keyboard
legacy support for non-USB aware OSes.
This time-out value for Control, Bulk, and Interrupt
transfers.
USB mass storage device Start Unit command
time-out.
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.
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.