Kontron AM5020 uEFI BIOS - Manual (Page 18)

Main Setup AM5020 uEFI BIOS
Page 12 ID 1045-0247, Rev. 1.0
P R E L I M I N A R Y
2.4.3 EHCI Hand-Off
This function is used to enable a workaround for operating systems without EHCI Hand-Off
support. The EHCI ownership change should be claimed by the EHCI driver.
Note: It is recommended to leave this function at the default setting.
For operating systems without USB2.0 support this function must be left at the de-
fault setting.
Default setting: Enabled
2.4.4 Device Reset Timeout
This setting selects the timeout in seconds that the USB core will wait for a USB storage device
to become ready after start unit command.
Default setting: 20 sec
2.4.5 Mass Storage Devices
This function shows a list of connected USB mass storage devices and allows the user to select
how the respective device is to be treated.
SETTING DESCRIPTION
Disabled Use this setting to disable EHCI Hand-Off support.
Enabled Use this setting to enable EHCI Hand-Off support.
SETTING DESCRIPTION
10 sec
20 sec
30 sec
40 sec Use one of these settings to specify how long the USB core will wait for a USB mass stor-
age device to become ready after the start unit command.