BIOS Setup
IB838 Series Use
r’s Manual
65
4
4.4.11 USB Configuration
BIOS Setting
Description
Legacy USB Support
•
Enabled
enables Legacy USB support.
•
Auto
disables legacy support if there is no
USB device connected.
•
Disabled
keeps USB devices available only
for EFI applications.
XHCI Hand-off
This is a workaround for OSes without XHCI
hand-off support. The XHCI ownership change
should be claimed by XHCI driver.
USB Mass Storage
Driver Support
Enables / Disables the support for USB mass
storage driver.
USB Transfer
time-out
The time-out value (1 / 5 10 / 20 secs) for Control,
Bulk, and Interrupt transfers.
Device reset time-out
USB mass storage device Start Unit command
time-out
Device power-up
delay
Max.time the device will take before it properly
reports itself to the Host Controller.
‘
Auto
’ uses
default value: for a Root port it is 100ms, for a
Hub port the delay is taken from Hub descriptor.
Summary of Contents for IB838 Series
Page 1: ...IB838 Series Intel Core i3 N series 3 5 Disk Size SBC User s Manual Version 1 0 July 2023...
Page 8: ......
Page 14: ...6 IB838 Series User s Manual 1 6 Block Diagram...
Page 16: ...8 IB838 Series User s Manual I O View...
Page 17: ...General Information IB838 Series User s Manual 9 1 1 8 Dimensions...
Page 18: ...10 IB838 Series User s Manual This page is intentionally left blank...
Page 22: ...14 IB838 Series User s Manual 2 3 Jumper Connector Locations IB838...
Page 32: ...24 IB838 Series User s Manual 2 5 4 LAN Connectors CN4 CN5 2 5 5 USB 3 2 Connector CN6...
Page 66: ...58 IB838 Series User s Manual 4 4 4 PCH FW Configuration...
Page 69: ...BIOS Setup IB838 Series User s Manual 61 4 4 4 7 LVDS Configuration...
Page 72: ...64 IB838 Series User s Manual 4 4 10 AMI Graphic Output Protocol Policy...