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EFI_USBFN_IO_PROTOCOL.GetMaxTransferSize

  • Article

The GetMaxTransferSize function returns the maximum transfer size as supported by the underlying controller.

Syntax

typedef
EFI_STATUS
(EFIAPI * EFI_USBFN_IO_GET_MAXTRANSFER_SIZE) (
  IN EFI_USBFN_IO_PROTOCOL     *This,
  OUT UINTN                    *MaxTransferSize
  );

Parameters

This
A pointer to the EFI_USBFN_IO_PROTOCOL instance.

MaxTransferSize
The maximum supported transfer size, in bytes.

Return values

This function returns the following values:

Return code 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

Remarks

Requirements

Header: User generated