Kontron AM4022 uEFI BIOS Manual do Utilizador descarregar pdf (Página 20)

Main Setup AM4022 uEFI BIOS

Page 14 ID 1052-1333, Rev. 1.0

2.6.1.3 USB3.0 Support

This function is used to enable USB3.0 support.

Default setting: Enabled

2.6.1.4 XHCI Hand-Off

This function is used to enable a workaround for operating systems without XHCI Hand-Off

support. The XHCI ownership change should be claimed by the XHCI driver.

Note: It is recommended to leave this function at the default setting.

For operating systems without USB3.0 support this function must be left at the de-

fault setting.

Default setting: Enabled

2.6.1.5 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: Disabled

SETTING DESCRIPTION

Disabled Use this setting to disable USB3.0 support.

Enabled Use this setting to enable USB3.0 support.

SETTING DESCRIPTION

Disabled Use this setting to disable XHCI Hand-Off support.

Enabled Use this setting to enable XHCI Hand-Off support.

SETTING DESCRIPTION

Disabled Use this setting to disable EHCI Hand-Off support.

Enabled Use this setting to enable EHCI Hand-Off support.

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