Avalue ESM-QM57 - Manual (Page 54)

ESM-QM57
54 ESM- QM57 User ’s Manual
3.6.2.10 USB Configuration
The USB configuration menu is used to read USB configuration information and configure
the USB setting.
3.6.2.10.1 Legacy USB support
Use the Legacy USB Support BIOS option to enable USB mouse and USB keyboard
support. Normally if this option is not enabled, any attached USB mouse or USB keyboard
does not become available until a USB compatible operating system is fully booted with all
USB drivers loaded. When this option is enabled, any attached USB mouse or USB
keyboard can control the system even when there is no USB driver loaded onto the system.
Options: Enabled, Disabled, Auto
3.6.2.10.2 ECHI hand-off
This is a workaround for OSes without EHCI hand-off support. The EHCI ownership change
should be claimed by EHCI driver.
Options: Enabled, Disabled
3.6.2.10.3 USB transfer timeout
Time-out value for Control, Bulk, and Interrupt transfers
Options 1, 5, 10, 20 Sec