
SOM-4463 B2 User Manual
22
3.2.2.15
USB Configuration
Figure 3.18 USB Configuration
Legacy USB Support
This item allows users to enable legacy USB support. The “Auto” option dis-
ables legacy support if no USB devices are connected.
USB 2.0 Controller Mode
This item allows users to choose between hi-speed (480 Mbps) or full-speed (12
Mbps) mode.
BIOS EHCI Hands Off
This item provides a workaround for operating systems without EHCI hands off
support. EHCI ownership change requests should be claimed by the EHCI
driver.
Hotplug USB FDD Support
A dummy FDD device can be created and associated with a hot-plugged FDD.
The “Auto” option creates this dummy device only if no USB FDD is present.
Summary of Contents for SOM-4463 B2
Page 1: ...User Manual SOM 4463 B2...
Page 10: ...SOM 4463 B2 User Manual 4...
Page 14: ...SOM 4463 B2 User Manual 8...
Page 38: ...SOM 4463 B2 User Manual 32...
Page 44: ...SOM 4463 B2 User Manual 38...