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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