| /** @file | |
| EFI Usb I/O Protocol as defined in UEFI specification. | |
| This protocol is used by code, typically drivers, running in the EFI | |
| boot services environment to access USB devices like USB keyboards, | |
| mice and mass storage devices. In particular, functions for managing devices | |
| on USB buses are defined here. | |
| Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR> | |
| This program and the accompanying materials | |
| are licensed and made available under the terms and conditions of the BSD License | |
| which accompanies this distribution. The full text of the license may be found at | |
| http://opensource.org/licenses/bsd-license.php | |
| THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, | |
| WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. | |
| **/ | |
| #ifndef __USB_IO_H__ | |
| #define __USB_IO_H__ | |
| #include <IndustryStandard/Usb.h> | |
| // | |
| // Global ID for the USB I/O Protocol | |
| // | |
| #define EFI_USB_IO_PROTOCOL_GUID \ | |
| { \ | |
| 0x2B2F68D6, 0x0CD2, 0x44cf, {0x8E, 0x8B, 0xBB, 0xA2, 0x0B, 0x1B, 0x5B, 0x75 } \ | |
| } | |
| typedef struct _EFI_USB_IO_PROTOCOL EFI_USB_IO_PROTOCOL; | |
| // | |
| // Related Definition for EFI USB I/O protocol | |
| // | |
| // | |
| // USB standard descriptors and reqeust | |
| // | |
| typedef USB_DEVICE_REQUEST EFI_USB_DEVICE_REQUEST; | |
| typedef USB_DEVICE_DESCRIPTOR EFI_USB_DEVICE_DESCRIPTOR; | |
| typedef USB_CONFIG_DESCRIPTOR EFI_USB_CONFIG_DESCRIPTOR; | |
| typedef USB_INTERFACE_DESCRIPTOR EFI_USB_INTERFACE_DESCRIPTOR; | |
| typedef USB_ENDPOINT_DESCRIPTOR EFI_USB_ENDPOINT_DESCRIPTOR; | |
| /// | |
| /// USB data transfer direction | |
| /// | |
| typedef enum { | |
| EfiUsbDataIn, | |
| EfiUsbDataOut, | |
| EfiUsbNoData | |
| } EFI_USB_DATA_DIRECTION; | |
| // | |
| // USB Transfer Results | |
| // | |
| #define EFI_USB_NOERROR 0x00 | |
| #define EFI_USB_ERR_NOTEXECUTE 0x01 | |
| #define EFI_USB_ERR_STALL 0x02 | |
| #define EFI_USB_ERR_BUFFER 0x04 | |
| #define EFI_USB_ERR_BABBLE 0x08 | |
| #define EFI_USB_ERR_NAK 0x10 | |
| #define EFI_USB_ERR_CRC 0x20 | |
| #define EFI_USB_ERR_TIMEOUT 0x40 | |
| #define EFI_USB_ERR_BITSTUFF 0x80 | |
| #define EFI_USB_ERR_SYSTEM 0x100 | |
| /** | |
| Async USB transfer callback routine. | |
| @param Data Data received or sent via the USB Asynchronous Transfer, if the | |
| transfer completed successfully. | |
| @param DataLength The length of Data received or sent via the Asynchronous | |
| Transfer, if transfer successfully completes. | |
| @param Context Data passed from UsbAsyncInterruptTransfer() request. | |
| @param Status Indicates the result of the asynchronous transfer. | |
| @retval EFI_SUCCESS The asynchronous USB transfer request has been successfully executed. | |
| @retval EFI_DEVICE_ERROR The asynchronous USB transfer request failed. | |
| **/ | |
| typedef | |
| EFI_STATUS | |
| (EFIAPI *EFI_ASYNC_USB_TRANSFER_CALLBACK)( | |
| IN VOID *Data, | |
| IN UINTN DataLength, | |
| IN VOID *Context, | |
| IN UINT32 Status | |
| ); | |
| // | |
| // Prototype for EFI USB I/O protocol | |
| // | |
| /** | |
| This function is used to manage a USB device with a control transfer pipe. A control transfer is | |
| typically used to perform device initialization and configuration. | |
| @param This A pointer to the EFI_USB_IO_PROTOCOL instance. | |
| @param Request A pointer to the USB device request that will be sent to the USB | |
| device. | |
| @param Direction Indicates the data direction. | |
| @param Timeout Indicating the transfer should be completed within this time frame. | |
| The units are in milliseconds. | |
| @param Data A pointer to the buffer of data that will be transmitted to USB | |
| device or received from USB device. | |
| @param DataLength The size, in bytes, of the data buffer specified by Data. | |
| @param Status A pointer to the result of the USB transfer. | |
| @retval EFI_SUCCESS The control transfer has been successfully executed. | |
| @retval EFI_DEVICE_ERROR The transfer failed. The transfer status is returned in Status. | |
| @retval EFI_INVALID_PARAMETE One or more parameters are invalid. | |
| @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack of resources. | |
| @retval EFI_TIMEOUT The control transfer fails due to timeout. | |
| **/ | |
| typedef | |
| EFI_STATUS | |
| (EFIAPI *EFI_USB_IO_CONTROL_TRANSFER)( | |
| IN EFI_USB_IO_PROTOCOL *This, | |
| IN EFI_USB_DEVICE_REQUEST *Request, | |
| IN EFI_USB_DATA_DIRECTION Direction, | |
| IN UINT32 Timeout, | |
| IN OUT VOID *Data OPTIONAL, | |
| IN UINTN DataLength OPTIONAL, | |
| OUT UINT32 *Status | |
| ); | |
| /** | |
| This function is used to manage a USB device with the bulk transfer pipe. Bulk Transfers are | |
| typically used to transfer large amounts of data to/from USB devices. | |
| @param This A pointer to the EFI_USB_IO_PROTOCOL instance. | |
| @param DeviceEndpoint The destination USB device endpoint to which the | |
| device request is being sent. DeviceEndpoint must | |
| be between 0x01 and 0x0F or between 0x81 and 0x8F, | |
| otherwise EFI_INVALID_PARAMETER is returned. If | |
| the endpoint is not a BULK endpoint, EFI_INVALID_PARAMETER | |
| is returned. The MSB of this parameter indicates | |
| the endpoint direction. The number "1" stands for | |
| an IN endpoint, and "0" stands for an OUT endpoint. | |
| @param Data A pointer to the buffer of data that will be transmitted to USB | |
| device or received from USB device. | |
| @param DataLength The size, in bytes, of the data buffer specified by Data. | |
| On input, the size, in bytes, of the data buffer specified by Data. | |
| On output, the number of bytes that were actually transferred. | |
| @param Timeout Indicating the transfer should be completed within this time frame. | |
| The units are in milliseconds. If Timeout is 0, then the | |
| caller must wait for the function to be completed until | |
| EFI_SUCCESS or EFI_DEVICE_ERROR is returned. | |
| @param Status This parameter indicates the USB transfer status. | |
| @retval EFI_SUCCESS The bulk transfer has been successfully executed. | |
| @retval EFI_DEVICE_ERROR The transfer failed. The transfer status is returned in Status. | |
| @retval EFI_INVALID_PARAMETE One or more parameters are invalid. | |
| @retval EFI_OUT_OF_RESOURCES The request could not be submitted due to a lack of resources. | |
| @retval EFI_TIMEOUT The control transfer fails due to timeout. | |
| **/ | |
| typedef | |
| EFI_STATUS | |
| (EFIAPI *EFI_USB_IO_BULK_TRANSFER)( | |
| IN EFI_USB_IO_PROTOCOL *This, | |
| IN UINT8 DeviceEndpoint, | |
| IN OUT VOID *Data, | |
| IN OUT UINTN *DataLength, | |
| IN UINTN Timeout, | |
| OUT UINT32 *Status | |
| ); | |
| /** | |
| This function is used to manage a USB device with an interrupt transfer pipe. An Asynchronous | |
| Interrupt Transfer is typically used to query a device's status at a fixed rate. For example, | |
| keyboard, mouse, and hub devices use this type of transfer to query their interrupt endpoints at | |
| a fixed rate. | |
| @param This A pointer to the EFI_USB_IO_PROTOCOL instance. | |
| @param DeviceEndpoint The destination USB device endpoint to which the | |
| device request is being sent. DeviceEndpoint must | |
| be between 0x01 and 0x0F or between 0x81 and 0x8F, | |
| otherwise EFI_INVALID_PARAMETER is returned. If | |
| the endpoint is not a BULK endpoint, EFI_INVALID_PARAMETER | |
| is returned. The MSB of this parameter indicates | |
| the endpoint direction. The number "1" stands for | |
| an IN endpoint, and "0" stands for an OUT endpoint. | |
| @param IsNewTransfer If TRUE, a new transfer will be submitted to USB controller. If | |
| FALSE, the interrupt transfer is deleted from the device's interrupt | |
| transfer queue. | |
| @param PollingInterval Indicates the periodic rate, in milliseconds, that the transfer is to be | |
| executed.This parameter is required when IsNewTransfer is TRUE. The | |
| value must be between 1 to 255, otherwise EFI_INVALID_PARAMETER is returned. | |
| The units are in milliseconds. | |
| @param DataLength Specifies the length, in bytes, of the data to be received from the | |
| USB device. This parameter is only required when IsNewTransfer is TRUE. | |
| @param InterruptCallback The Callback function. This function is called if the asynchronous | |
| interrupt transfer is completed. This parameter is required | |
| when IsNewTransfer is TRUE. | |
| @param Context Data passed to the InterruptCallback function. This is an optional | |
| parameter and may be NULL. | |
| @retval EFI_SUCCESS The asynchronous USB transfer request transfer has been successfully executed. | |
| @retval EFI_DEVICE_ERROR The asynchronous USB transfer request failed. | |
| **/ | |
| typedef | |
| EFI_STATUS | |
| (EFIAPI *EFI_USB_IO_ASYNC_INTERRUPT_TRANSFER)( | |
| IN EFI_USB_IO_PROTOCOL *This, | |
| IN UINT8 DeviceEndpoint, | |
| IN BOOLEAN IsNewTransfer, | |
| IN UINTN PollingInterval OPTIONAL, | |
| IN UINTN DataLength OPTIONAL, | |
| IN EFI_ASYNC_USB_TRANSFER_CALLBACK InterruptCallBack OPTIONAL, | |
| IN VOID *Context OPTIONAL | |
| ); | |
| /** | |
| This function is used to manage a USB device with an interrupt transfer pipe. | |
| @param This A pointer to the EFI_USB_IO_PROTOCOL instance. | |
| @param DeviceEndpoint The destination USB device endpoint to which the | |
| device request is being sent. DeviceEndpoint must | |
| be between 0x01 and 0x0F or between 0x81 and 0x8F, | |
| otherwise EFI_INVALID_PARAMETER is returned. If | |
| the endpoint is not a BULK endpoint, EFI_INVALID_PARAMETER | |
| is returned. The MSB of this parameter indicates | |
| the endpoint direction. The number "1" stands for | |
| an IN endpoint, and "0" stands for an OUT endpoint. | |
| @param Data A pointer to the buffer of data that will be transmitted to USB | |
| device or received from USB device. | |
| @param DataLength On input, then size, in bytes, of the buffer Data. On output, the | |
| amount of data actually transferred. | |
| @param Timeout The time out, in seconds, for this transfer. If Timeout is 0, | |
| then the caller must wait for the function to be completed | |
| until EFI_SUCCESS or EFI_DEVICE_ERROR is returned. If the | |
| transfer is not completed in this time frame, then EFI_TIMEOUT is returned. | |
| @param Status This parameter indicates the USB transfer status. | |
| @retval EFI_SUCCESS The sync interrupt transfer has been successfully executed. | |
| @retval EFI_INVALID_PARAMETER One or more parameters are invalid. | |
| @retval EFI_DEVICE_ERROR The sync interrupt transfer request failed. | |
| @retval EFI_OUT_OF_RESOURCES The request could not be submitted due to a lack of resources. | |
| @retval EFI_TIMEOUT The transfer fails due to timeout. | |
| **/ | |
| typedef | |
| EFI_STATUS | |
| (EFIAPI *EFI_USB_IO_SYNC_INTERRUPT_TRANSFER)( | |
| IN EFI_USB_IO_PROTOCOL *This, | |
| IN UINT8 DeviceEndpoint, | |
| IN OUT VOID *Data, | |
| IN OUT UINTN *DataLength, | |
| IN UINTN Timeout, | |
| OUT UINT32 *Status | |
| ); | |
| /** | |
| This function is used to manage a USB device with an isochronous transfer pipe. An Isochronous | |
| transfer is typically used to transfer streaming data. | |
| @param This A pointer to the EFI_USB_IO_PROTOCOL instance. | |
| @param DeviceEndpoint The destination USB device endpoint to which the | |
| device request is being sent. DeviceEndpoint must | |
| be between 0x01 and 0x0F or between 0x81 and 0x8F, | |
| otherwise EFI_INVALID_PARAMETER is returned. If | |
| the endpoint is not a BULK endpoint, EFI_INVALID_PARAMETER | |
| is returned. The MSB of this parameter indicates | |
| the endpoint direction. The number "1" stands for | |
| an IN endpoint, and "0" stands for an OUT endpoint. | |
| @param Data A pointer to the buffer of data that will be transmitted to USB | |
| device or received from USB device. | |
| @param DataLength The size, in bytes, of the data buffer specified by Data. | |
| @param Status This parameter indicates the USB transfer status. | |
| @retval EFI_SUCCESS The isochronous transfer has been successfully executed. | |
| @retval EFI_INVALID_PARAMETER The parameter DeviceEndpoint is not valid. | |
| @retval EFI_DEVICE_ERROR The transfer failed due to the reason other than timeout, The error status | |
| is returned in Status. | |
| @retval EFI_OUT_OF_RESOURCES The request could not be submitted due to a lack of resources. | |
| @retval EFI_TIMEOUT The transfer fails due to timeout. | |
| **/ | |
| typedef | |
| EFI_STATUS | |
| (EFIAPI *EFI_USB_IO_ISOCHRONOUS_TRANSFER)( | |
| IN EFI_USB_IO_PROTOCOL *This, | |
| IN UINT8 DeviceEndpoint, | |
| IN OUT VOID *Data, | |
| IN UINTN DataLength, | |
| OUT UINT32 *Status | |
| ); | |
| /** | |
| This function is used to manage a USB device with an isochronous transfer pipe. An Isochronous | |
| transfer is typically used to transfer streaming data. | |
| @param This A pointer to the EFI_USB_IO_PROTOCOL instance. | |
| @param DeviceEndpoint The destination USB device endpoint to which the | |
| device request is being sent. DeviceEndpoint must | |
| be between 0x01 and 0x0F or between 0x81 and 0x8F, | |
| otherwise EFI_INVALID_PARAMETER is returned. If | |
| the endpoint is not a BULK endpoint, EFI_INVALID_PARAMETER | |
| is returned. The MSB of this parameter indicates | |
| the endpoint direction. The number "1" stands for | |
| an IN endpoint, and "0" stands for an OUT endpoint. | |
| @param Data A pointer to the buffer of data that will be transmitted to USB | |
| device or received from USB device. | |
| @param DataLength The size, in bytes, of the data buffer specified by Data. | |
| This is an optional parameter and may be NULL. | |
| @param IsochronousCallback The IsochronousCallback() function.This function is | |
| called if the requested isochronous transfer is completed. | |
| @param Context Data passed to the IsochronousCallback() function. | |
| @retval EFI_SUCCESS The asynchronous isochronous transfer has been successfully submitted | |
| to the system. | |
| @retval EFI_INVALID_PARAMETER The parameter DeviceEndpoint is not valid. | |
| @retval EFI_OUT_OF_RESOURCES The request could not be submitted due to a lack of resources. | |
| **/ | |
| typedef | |
| EFI_STATUS | |
| (EFIAPI *EFI_USB_IO_ASYNC_ISOCHRONOUS_TRANSFER)( | |
| IN EFI_USB_IO_PROTOCOL *This, | |
| IN UINT8 DeviceEndpoint, | |
| IN OUT VOID *Data, | |
| IN UINTN DataLength, | |
| IN EFI_ASYNC_USB_TRANSFER_CALLBACK IsochronousCallBack, | |
| IN VOID *Context OPTIONAL | |
| ); | |
| /** | |
| Resets and reconfigures the USB controller. This function will work for all USB devices except | |
| USB Hub Controllers. | |
| @param This A pointer to the EFI_USB_IO_PROTOCOL instance. | |
| @retval EFI_SUCCESS The USB controller was reset. | |
| @retval EFI_INVALID_PARAMETER If the controller specified by This is a USB hub. | |
| @retval EFI_DEVICE_ERROR An error occurred during the reconfiguration process. | |
| **/ | |
| typedef | |
| EFI_STATUS | |
| (EFIAPI *EFI_USB_IO_PORT_RESET)( | |
| IN EFI_USB_IO_PROTOCOL *This | |
| ); | |
| /** | |
| Retrieves the USB Device Descriptor. | |
| @param This A pointer to the EFI_USB_IO_PROTOCOL instance. | |
| @param DeviceDescriptor A pointer to the caller allocated USB Device Descriptor. | |
| @retval EFI_SUCCESS The device descriptor was retrieved successfully. | |
| @retval EFI_INVALID_PARAMETER DeviceDescriptor is NULL. | |
| @retval EFI_NOT_FOUND The device descriptor was not found. The device may not be configured. | |
| **/ | |
| typedef | |
| EFI_STATUS | |
| (EFIAPI *EFI_USB_IO_GET_DEVICE_DESCRIPTOR)( | |
| IN EFI_USB_IO_PROTOCOL *This, | |
| OUT EFI_USB_DEVICE_DESCRIPTOR *DeviceDescriptor | |
| ); | |
| /** | |
| Retrieves the USB Device Descriptor. | |
| @param This A pointer to the EFI_USB_IO_PROTOCOL instance. | |
| @param ConfigurationDescriptor A pointer to the caller allocated USB Active Configuration | |
| Descriptor. | |
| @retval EFI_SUCCESS The active configuration descriptor was retrieved successfully. | |
| @retval EFI_INVALID_PARAMETER ConfigurationDescriptor is NULL. | |
| @retval EFI_NOT_FOUND An active configuration descriptor cannot be found. The device may not | |
| be configured. | |
| **/ | |
| typedef | |
| EFI_STATUS | |
| (EFIAPI *EFI_USB_IO_GET_CONFIG_DESCRIPTOR)( | |
| IN EFI_USB_IO_PROTOCOL *This, | |
| OUT EFI_USB_CONFIG_DESCRIPTOR *ConfigurationDescriptor | |
| ); | |
| /** | |
| Retrieves the Interface Descriptor for a USB Device Controller. As stated earlier, an interface | |
| within a USB device is equivalently to a USB Controller within the current configuration. | |
| @param This A pointer to the EFI_USB_IO_PROTOCOL instance. | |
| @param InterfaceDescriptor A pointer to the caller allocated USB Interface Descriptor within | |
| the configuration setting. | |
| @retval EFI_SUCCESS The interface descriptor retrieved successfully. | |
| @retval EFI_INVALID_PARAMETER InterfaceDescriptor is NULL. | |
| @retval EFI_NOT_FOUND The interface descriptor cannot be found. The device may not be | |
| correctly configured. | |
| **/ | |
| typedef | |
| EFI_STATUS | |
| (EFIAPI *EFI_USB_IO_GET_INTERFACE_DESCRIPTOR)( | |
| IN EFI_USB_IO_PROTOCOL *This, | |
| OUT EFI_USB_INTERFACE_DESCRIPTOR *InterfaceDescriptor | |
| ); | |
| /** | |
| Retrieves an Endpoint Descriptor within a USB Controller. | |
| @param This A pointer to the EFI_USB_IO_PROTOCOL instance. | |
| @param EndpointIndex Indicates which endpoint descriptor to retrieve. | |
| @param EndpointDescriptor A pointer to the caller allocated USB Endpoint Descriptor of | |
| a USB controller. | |
| @retval EFI_SUCCESS The endpoint descriptor was retrieved successfully. | |
| @retval EFI_INVALID_PARAMETER One or more parameters are invalid. | |
| @retval EFI_NOT_FOUND The endpoint descriptor cannot be found. The device may not be | |
| correctly configured. | |
| **/ | |
| typedef | |
| EFI_STATUS | |
| (EFIAPI *EFI_USB_IO_GET_ENDPOINT_DESCRIPTOR)( | |
| IN EFI_USB_IO_PROTOCOL *This, | |
| IN UINT8 EndpointIndex, | |
| OUT EFI_USB_ENDPOINT_DESCRIPTOR *EndpointDescriptor | |
| ); | |
| /** | |
| Retrieves a string stored in a USB Device. | |
| @param This A pointer to the EFI_USB_IO_PROTOCOL instance. | |
| @param LangID The Language ID for the string being retrieved. | |
| @param StringID The ID of the string being retrieved. | |
| @param String A pointer to a buffer allocated by this function with | |
| AllocatePool() to store the string.If this function | |
| returns EFI_SUCCESS, it stores the string the caller | |
| wants to get. The caller should release the string | |
| buffer with FreePool() after the string is not used any more. | |
| @retval EFI_SUCCESS The string was retrieved successfully. | |
| @retval EFI_NOT_FOUND The string specified by LangID and StringID was not found. | |
| @retval EFI_OUT_OF_RESOURCES There are not enough resources to allocate the return buffer String. | |
| **/ | |
| typedef | |
| EFI_STATUS | |
| (EFIAPI *EFI_USB_IO_GET_STRING_DESCRIPTOR)( | |
| IN EFI_USB_IO_PROTOCOL *This, | |
| IN UINT16 LangID, | |
| IN UINT8 StringID, | |
| OUT CHAR16 **String | |
| ); | |
| /** | |
| Retrieves all the language ID codes that the USB device supports. | |
| @param This A pointer to the EFI_USB_IO_PROTOCOL instance. | |
| @param LangIDTable Language ID for the string the caller wants to get. | |
| This is a 16-bit ID defined by Microsoft. This | |
| buffer pointer is allocated and maintained by | |
| the USB Bus Driver, the caller should not modify | |
| its contents. | |
| @param TableSize The size, in bytes, of the table LangIDTable. | |
| @retval EFI_SUCCESS The support languages were retrieved successfully. | |
| **/ | |
| typedef | |
| EFI_STATUS | |
| (EFIAPI *EFI_USB_IO_GET_SUPPORTED_LANGUAGE)( | |
| IN EFI_USB_IO_PROTOCOL *This, | |
| OUT UINT16 **LangIDTable, | |
| OUT UINT16 *TableSize | |
| ); | |
| /// | |
| /// The EFI_USB_IO_PROTOCOL provides four basic transfers types described | |
| /// in the USB 1.1 Specification. These include control transfer, interrupt | |
| /// transfer, bulk transfer and isochronous transfer. The EFI_USB_IO_PROTOCOL | |
| /// also provides some basic USB device/controller management and configuration | |
| /// interfaces. A USB device driver uses the services of this protocol to manage USB devices. | |
| /// | |
| struct _EFI_USB_IO_PROTOCOL { | |
| // | |
| // IO transfer | |
| // | |
| EFI_USB_IO_CONTROL_TRANSFER UsbControlTransfer; | |
| EFI_USB_IO_BULK_TRANSFER UsbBulkTransfer; | |
| EFI_USB_IO_ASYNC_INTERRUPT_TRANSFER UsbAsyncInterruptTransfer; | |
| EFI_USB_IO_SYNC_INTERRUPT_TRANSFER UsbSyncInterruptTransfer; | |
| EFI_USB_IO_ISOCHRONOUS_TRANSFER UsbIsochronousTransfer; | |
| EFI_USB_IO_ASYNC_ISOCHRONOUS_TRANSFER UsbAsyncIsochronousTransfer; | |
| // | |
| // Common device request | |
| // | |
| EFI_USB_IO_GET_DEVICE_DESCRIPTOR UsbGetDeviceDescriptor; | |
| EFI_USB_IO_GET_CONFIG_DESCRIPTOR UsbGetConfigDescriptor; | |
| EFI_USB_IO_GET_INTERFACE_DESCRIPTOR UsbGetInterfaceDescriptor; | |
| EFI_USB_IO_GET_ENDPOINT_DESCRIPTOR UsbGetEndpointDescriptor; | |
| EFI_USB_IO_GET_STRING_DESCRIPTOR UsbGetStringDescriptor; | |
| EFI_USB_IO_GET_SUPPORTED_LANGUAGE UsbGetSupportedLanguages; | |
| // | |
| // Reset controller's parent port | |
| // | |
| EFI_USB_IO_PORT_RESET UsbPortReset; | |
| }; | |
| extern EFI_GUID gEfiUsbIoProtocolGuid; | |
| #endif |