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EMX-H61B User's Manual
3.6.2.3 USB Legacy Features
Item
Legacy USB Support
EHCI Hand-off
Port 60/64 Emulation
USB transfer time-out
Device reset time-out
Device power-up delay
SanDisk Extreme 0001
32 EMX-H61B User's Manual
Options
Enabled[Default]
Disabled
Auto
Disabled[Default]
Enabled
Disabled
Enabled[Default]
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 EHCI
hand-off support. The EHCI ownership change
should be claimed by EHCI driver.
Enables I/O port 60h/64h emulation support.
This should be enabled for the complete USB
keyboard legacy support for non-USB aware
OSes.
The 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.
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