EFI_USBFN_IO_PROTOCOL.ConfigureEnableEndpoints

Artikel
03/23/2023

The ConfigureEnableEndpoints function initializes endpoints based on supplied device and configuration descriptors.

Syntax

typedef
EFI_STATUS
(EFIAPI * EFI_USBFN_IO_CONFIGURE_ENABLE_ENDPOINTS) (
  IN EFI_USBFN_IO_PROTOCOL         *This,
  IN EFI_USB_DEVICE_INFO           *DeviceInfo
  );

Parameters

This
A pointer to the EFI_USBFN_IO_PROTOCOL instance.

DeviceInfo
A pointer to an EFI_USB_DEVICE_INFO structure.

Return values

The function returns the following values:

Return value	Description
EFI_SUCCESS	The function returned successfully.
EFI_INVALID_PARAMETER	A parameter is invalid.
EFI_DEVICE_ERROR	The physical device reported an error.
EFI_NOT_READY	The physical device is busy or not ready to process this request.
EFI_OUT_OF_RESOURCES	The request could not be completed due to lack of resources.

Remarks

Assuming that the hardware has already been initialized, this function configures the endpoints using the supplied DeviceInfo , activates the port, and starts receiving USB events.

This function must ignore the bMaxPacketSize0 field of the Standard Device Descriptor and wMaxPacketSize field of Standard Endpoint Descriptor that are made available through supplied DeviceInfo.

Requirements

Header: User generated

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