diff options
| -rw-r--r-- | MdePkg/Include/IndustryStandard/Usb.h | 81 | ||||
| -rw-r--r-- | MdePkg/Include/Protocol/Usb2HostController.h | 43 | ||||
| -rw-r--r-- | MdePkg/Include/Protocol/UsbIo.h | 280 |
3 files changed, 206 insertions, 198 deletions
diff --git a/MdePkg/Include/IndustryStandard/Usb.h b/MdePkg/Include/IndustryStandard/Usb.h index 333bb67..0c25114 100644 --- a/MdePkg/Include/IndustryStandard/Usb.h +++ b/MdePkg/Include/IndustryStandard/Usb.h @@ -58,68 +58,6 @@ #define USB_DEV_SYNCH_FRAME 0x0C
#define USB_DEV_SYNCH_FRAME_REQ_TYPE 0x82
-//
-// Definitions defined in UEFI spec
-//
-
-//
-// 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
-
-//
-// Constant value for Port Status & Port Change Status
-//
-#define USB_PORT_STAT_CONNECTION 0x0001
-#define USB_PORT_STAT_ENABLE 0x0002
-#define USB_PORT_STAT_SUSPEND 0x0004
-#define USB_PORT_STAT_OVERCURRENT 0x0008
-#define USB_PORT_STAT_RESET 0x0010
-#define USB_PORT_STAT_POWER 0x0100
-#define USB_PORT_STAT_LOW_SPEED 0x0200
-#define USB_PORT_STAT_HIGH_SPEED 0x0400
-#define USB_PORT_STAT_OWNER 0x0800
-
-#define USB_PORT_STAT_C_CONNECTION 0x0001
-#define USB_PORT_STAT_C_ENABLE 0x0002
-#define USB_PORT_STAT_C_SUSPEND 0x0004
-#define USB_PORT_STAT_C_OVERCURRENT 0x0008
-#define USB_PORT_STAT_C_RESET 0x0010
-
-//
-// USB data transfer direction
-//
-typedef enum {
- EfiUsbDataIn,
- EfiUsbDataOut,
- EfiUsbNoData
-} EFI_USB_DATA_DIRECTION;
-
-//
-// Usb port features
-//
-typedef enum {
- EfiUsbPortEnable = 1,
- EfiUsbPortSuspend = 2,
- EfiUsbPortReset = 4,
- EfiUsbPortPower = 8,
- EfiUsbPortOwner = 13,
- EfiUsbPortConnectChange = 16,
- EfiUsbPortEnableChange = 17,
- EfiUsbPortSuspendChange = 18,
- EfiUsbPortOverCurrentChange = 19,
- EfiUsbPortResetChange = 20
-} EFI_USB_PORT_FEATURE;
-
//
// USB standard descriptors and reqeust
@@ -131,7 +69,7 @@ typedef struct { UINT16 Value;
UINT16 Index;
UINT16 Length;
-} EFI_USB_DEVICE_REQUEST;
+} USB_DEVICE_REQUEST;
typedef struct {
UINT8 Length;
@@ -148,7 +86,7 @@ typedef struct { UINT8 StrProduct;
UINT8 StrSerialNumber;
UINT8 NumConfigurations;
-} EFI_USB_DEVICE_DESCRIPTOR;
+} USB_DEVICE_DESCRIPTOR;
typedef struct {
UINT8 Length;
@@ -159,7 +97,7 @@ typedef struct { UINT8 Configuration;
UINT8 Attributes;
UINT8 MaxPower;
-} EFI_USB_CONFIG_DESCRIPTOR;
+} USB_CONFIG_DESCRIPTOR;
typedef struct {
UINT8 Length;
@@ -171,7 +109,7 @@ typedef struct { UINT8 InterfaceSubClass;
UINT8 InterfaceProtocol;
UINT8 Interface;
-} EFI_USB_INTERFACE_DESCRIPTOR;
+} USB_INTERFACE_DESCRIPTOR;
typedef struct {
UINT8 Length;
@@ -180,7 +118,7 @@ typedef struct { UINT8 Attributes;
UINT16 MaxPacketSize;
UINT8 Interval;
-} EFI_USB_ENDPOINT_DESCRIPTOR;
+} USB_ENDPOINT_DESCRIPTOR;
typedef struct {
UINT8 Length;
@@ -190,16 +128,7 @@ typedef struct { #pragma pack()
-typedef struct {
- UINT16 PortStatus;
- UINT16 PortChangeStatus;
-} EFI_USB_PORT_STATUS;
-
-//
-// Following are definitions not specified by UEFI spec.
-// Add new definitions below this line
-//
enum {
//
// USB request type
diff --git a/MdePkg/Include/Protocol/Usb2HostController.h b/MdePkg/Include/Protocol/Usb2HostController.h index 81ad773..3db3660 100644 --- a/MdePkg/Include/Protocol/Usb2HostController.h +++ b/MdePkg/Include/Protocol/Usb2HostController.h @@ -28,6 +28,49 @@ //
typedef struct _EFI_USB2_HC_PROTOCOL EFI_USB2_HC_PROTOCOL;
+
+typedef struct {
+ UINT16 PortStatus;
+ UINT16 PortChangeStatus;
+} EFI_USB_PORT_STATUS;
+
+//
+// Constant value for Port Status & Port Change Status
+//
+#define USB_PORT_STAT_CONNECTION 0x0001
+#define USB_PORT_STAT_ENABLE 0x0002
+#define USB_PORT_STAT_SUSPEND 0x0004
+#define USB_PORT_STAT_OVERCURRENT 0x0008
+#define USB_PORT_STAT_RESET 0x0010
+#define USB_PORT_STAT_POWER 0x0100
+#define USB_PORT_STAT_LOW_SPEED 0x0200
+#define USB_PORT_STAT_HIGH_SPEED 0x0400
+#define USB_PORT_STAT_OWNER 0x0800
+
+#define USB_PORT_STAT_C_CONNECTION 0x0001
+#define USB_PORT_STAT_C_ENABLE 0x0002
+#define USB_PORT_STAT_C_SUSPEND 0x0004
+#define USB_PORT_STAT_C_OVERCURRENT 0x0008
+#define USB_PORT_STAT_C_RESET 0x0010
+
+
+//
+// Usb port features
+//
+typedef enum {
+ EfiUsbPortEnable = 1,
+ EfiUsbPortSuspend = 2,
+ EfiUsbPortReset = 4,
+ EfiUsbPortPower = 8,
+ EfiUsbPortOwner = 13,
+ EfiUsbPortConnectChange = 16,
+ EfiUsbPortEnableChange = 17,
+ EfiUsbPortSuspendChange = 18,
+ EfiUsbPortOverCurrentChange = 19,
+ EfiUsbPortResetChange = 20
+} EFI_USB_PORT_FEATURE;
+
+
#define EFI_USB_SPEED_FULL 0x0000 // 12 Mb/s, USB 1.1 OHCI and UHCI HC.
#define EFI_USB_SPEED_LOW 0x0001 // 1 Mb/s, USB 1.1 OHCI and UHCI HC.
#define EFI_USB_SPEED_HIGH 0x0002 // 480 Mb/s, USB 2.0 EHCI HC.
diff --git a/MdePkg/Include/Protocol/UsbIo.h b/MdePkg/Include/Protocol/UsbIo.h index 685296c..7d6ce27 100644 --- a/MdePkg/Include/Protocol/UsbIo.h +++ b/MdePkg/Include/Protocol/UsbIo.h @@ -1,14 +1,14 @@ /** @file
EFI Usb I/O Protocol
- Copyright (c) 2006, Intel Corporation
- All rights reserved. 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
+ Copyright (c) 2006, Intel Corporation
+ All rights reserved. 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.
+ THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
+ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
@@ -27,19 +27,55 @@ 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.
+ transfer completed successfully.
@param DataLength The length of Data received or sent via the Asynchronous
- Transfer, if transfer successfully completes.
+ 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_SUCCESS The asynchronous USB transfer request has been successfully executed.
@retval EFI_DEVICE_ERROR The asynchronous USB transfer request failed.
-
+
**/
typedef
EFI_STATUS
@@ -55,27 +91,27 @@ EFI_STATUS //
-/**
+/**
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.
+ 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.
+ device.
@param Direction Indicates the data direction.
@param Data A pointer to the buffer of data that will be transmitted to USB
- device or received from USB device.
+ device or received from USB device.
@param Timeout Indicating the transfer should be completed within this time frame.
- The units are in milliseconds.
+ The units are in milliseconds.
@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
@@ -89,26 +125,26 @@ EFI_STATUS 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 This A pointer to the EFI_USB_IO_PROTOCOL instance.
@param DeviceEndpoint A pointer to the USB device request that will be sent to the USB
- device.
+ device.
@param Data A pointer to the buffer of data that will be transmitted to USB
- device or received from USB device.
+ device or received from USB device.
@param DataLength The size, in bytes, of the data buffer specified by Data.
@param Timeout Indicating the transfer should be completed within this time frame.
- The units are in milliseconds.
+ The units are in milliseconds.
@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
@@ -121,29 +157,29 @@ EFI_STATUS 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,
+/**
+ 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.
+ a fixed rate.
+
+ @param This A pointer to the EFI_USB_IO_PROTOCOL instance.
@param DeviceEndpoint A pointer to the USB device request that will be sent to the USB
- device.
- @param IsNewTransfer If TRUE, a new transfer will be submitted to USB controller. If
+ device.
+ @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.
+ transfer queue.
+ @param PollingInterval Indicates the periodic rate, in milliseconds, that the transfer is to be
+ executed.
@param DataLength Specifies the length, in bytes, of the data to be received from the
- USB device.
+ USB device.
@param Context Data passed to the InterruptCallback function.
@param InterruptCallback The Callback function. This function is called if the asynchronous
interrupt transfer is completed.
-
+
@retval EFI_SUCCESS The asynchronous USB transfer request transfer has been successfully executed.
- @retval EFI_DEVICE_ERROR The asynchronous USB transfer request failed.
-
+ @retval EFI_DEVICE_ERROR The asynchronous USB transfer request failed.
+
**/
typedef
EFI_STATUS
@@ -157,24 +193,24 @@ EFI_STATUS 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 This A pointer to the EFI_USB_IO_PROTOCOL instance.
@param DeviceEndpoint A pointer to the USB device request that will be sent to the USB
- device.
+ device.
@param Data A pointer to the buffer of data that will be transmitted to USB
- device or received from USB device.
+ 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.
+ amount of data actually transferred.
@param Timeout The time out, in seconds, for this transfer.
- @param Status This parameter indicates the USB transfer status.
-
+ @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_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.
+ @retval EFI_TIMEOUT The transfer fails due to timeout.
**/
typedef
EFI_STATUS
@@ -187,24 +223,24 @@ EFI_STATUS 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 This A pointer to the EFI_USB_IO_PROTOCOL instance.
@param DeviceEndpoint A pointer to the USB device request that will be sent to the USB
- device.
+ device.
@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.
-
+ 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.
+ 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.
+ @retval EFI_TIMEOUT The transfer fails due to timeout.
**/
typedef
EFI_STATUS
@@ -216,24 +252,24 @@ EFI_STATUS 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.
+ transfer is typically used to transfer streaming data.
+
+ @param This A pointer to the EFI_USB_IO_PROTOCOL instance.
@param DeviceEndpoint A pointer to the USB device request that will be sent to the USB
- device.
+ device.
@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.
+ device or received from USB device.
+ @param DataLength The size, in bytes, of the data buffer specified by Data.
@param Context Data passed to the IsochronousCallback() function.
@param IsochronousCallback 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
@@ -246,16 +282,16 @@ EFI_STATUS 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.
+ 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
@@ -263,16 +299,16 @@ EFI_STATUS IN EFI_USB_IO_PROTOCOL *This
);
-/**
+/**
Retrieves the USB Device Descriptor.
-
- @param This A pointer to the EFI_USB_IO_PROTOCOL instance.
+
+ @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
@@ -281,17 +317,17 @@ EFI_STATUS OUT EFI_USB_DEVICE_DESCRIPTOR *DeviceDescriptor
);
-/**
+/**
Retrieves the USB Device Descriptor.
-
- @param This A pointer to the EFI_USB_IO_PROTOCOL instance.
+
+ @param This A pointer to the EFI_USB_IO_PROTOCOL instance.
@param ConfigurationDescriptor A pointer to the caller allocated USB Active Configuration
- Descriptor.
+ 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.
-
+ be configured.
+
**/
typedef
EFI_STATUS
@@ -300,18 +336,18 @@ EFI_STATUS 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.
+ 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.
+ 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.
-
+ correctly configured.
+
**/
typedef
EFI_STATUS
@@ -320,19 +356,19 @@ EFI_STATUS 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 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.
-
+ 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.
-
+ correctly configured.
+
**/
typedef
EFI_STATUS
@@ -342,19 +378,19 @@ EFI_STATUS OUT EFI_USB_ENDPOINT_DESCRIPTOR *EndpointDescriptor
);
-/**
+/**
Retrieves a Unicode string stored in a USB Device.
-
- @param This A pointer to the EFI_USB_IO_PROTOCOL instance.
+
+ @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
+ @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.
-
- @retval EFI_SUCCESS The string was retrieved successfully.
- @retval EFI_NOT_FOUND The string specified by LangID and StringID was not found.
+
+ @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
@@ -365,15 +401,15 @@ EFI_STATUS 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 This A pointer to the EFI_USB_IO_PROTOCOL instance.
@param LangIDTable Language ID for the string the caller wants to get.
@param TableSize The size, in bytes, of the table LangIDTable.
-
- @retval EFI_SUCCESS The support languages were retrieved successfully.
-
+
+ @retval EFI_SUCCESS The support languages were retrieved successfully.
+
**/
typedef
EFI_STATUS
|