Add svn:eol-style property to source files, so that the line endings are correctly...
[pub/USBasp.git] / LUFA / Drivers / USB / Class / Host / Printer.h
index 04286ca..92f1f22 100644 (file)
-/*\r
-             LUFA Library\r
-     Copyright (C) Dean Camera, 2010.\r
-              \r
-  dean [at] fourwalledcubicle [dot] com\r
-      www.fourwalledcubicle.com\r
-*/\r
-\r
-/*\r
-  Copyright 2010  Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
-\r
-  Permission to use, copy, modify, distribute, and sell this \r
-  software and its documentation for any purpose is hereby granted\r
-  without fee, provided that the above copyright notice appear in \r
-  all copies and that both that the copyright notice and this\r
-  permission notice and warranty disclaimer appear in supporting \r
-  documentation, and that the name of the author not be used in \r
-  advertising or publicity pertaining to distribution of the \r
-  software without specific, written prior permission.\r
-\r
-  The author disclaim all warranties with regard to this\r
-  software, including all implied warranties of merchantability\r
-  and fitness.  In no event shall the author be liable for any\r
-  special, indirect or consequential damages or any damages\r
-  whatsoever resulting from loss of use, data or profits, whether\r
-  in an action of contract, negligence or other tortious action,\r
-  arising out of or in connection with the use or performance of\r
-  this software.\r
-*/\r
-\r
-/** \file\r
- *  \brief Host mode driver for the library USB Printer Class driver.\r
- *\r
- *  Host mode driver for the library USB Printer Class driver.\r
- *\r
- *  \note This file should not be included directly. It is automatically included as needed by the class driver\r
- *        dispatch header located in LUFA/Drivers/USB/Class/Printer.h.\r
- */\r
-\r
-/** \ingroup Group_USBClassPrinter\r
- *  @defgroup Group_USBClassPrinterHost Printer Class Host Mode Driver\r
- *\r
- *  \section Sec_Dependencies Module Source Dependencies\r
- *  The following files must be built with any user project that uses this module:\r
- *    - LUFA/Drivers/USB/Class/Host/Printer.c\r
- *\r
- *  \section Module Description\r
- *  Host Mode USB Class driver framework interface, for the Printer USB Class driver.\r
- *\r
- *  @{\r
- */\r
-\r
-#ifndef __PRINTER_CLASS_HOST_H__\r
-#define __PRINTER_CLASS_HOST_H__\r
-\r
-       /* Includes: */\r
-               #include "../../USB.h"\r
-               #include "../Common/Printer.h"\r
-               \r
-       /* Enable C linkage for C++ Compilers: */\r
-               #if defined(__cplusplus)\r
-                       extern "C" {\r
-               #endif\r
-\r
-       /* Preprocessor Checks: */\r
-               #if !defined(__INCLUDE_FROM_PRINTER_DRIVER)\r
-                       #error Do not include this file directly. Include LUFA/Drivers/Class/Printer.h instead.\r
-               #endif\r
-\r
-       /* Public Interface - May be used in end-application: */\r
-               /* Type Defines: */\r
-                       /** \brief Printer Class Host Mode Configuration and State Structure.\r
-                        *\r
-                        *  Class state structure. An instance of this structure should be made within the user application,\r
-                        *  and passed to each of the Printer class driver functions as the PRNTInterfaceInfo parameter. This\r
-                        *  stores each Printer interface's configuration and state information.\r
-                        */\r
-                       typedef struct\r
-                       {\r
-                               const struct\r
-                               {\r
-                                       uint8_t  DataINPipeNumber; /**< Pipe number of the Printer interface's IN data pipe */\r
-                                       bool     DataINPipeDoubleBank; /** Indicates if the Printer interface's IN data pipe should use double banking */\r
-\r
-                                       uint8_t  DataOUTPipeNumber; /**< Pipe number of the Printer interface's OUT data pipe */\r
-                                       bool     DataOUTPipeDoubleBank; /** Indicates if the Printer interface's OUT data pipe should use double banking */\r
-                               } Config; /**< Config data for the USB class interface within the device. All elements in this section\r
-                                          *   <b>must</b> be set or the interface will fail to enumerate and operate correctly.\r
-                                          */\r
-                               struct\r
-                               {\r
-                                       bool IsActive; /**< Indicates if the current interface instance is connected to an attached device, valid\r
-                                                       *   after \ref PRNT_Host_ConfigurePipes() is called and the Host state machine is in the\r
-                                                       *   Configured state\r
-                                                       */\r
-                                       uint8_t InterfaceNumber; /**< Interface index of the Printer interface within the attached device */\r
-                                       uint8_t AlternateSetting; /**< Alternate setting within the Printer Interface in the attached device */\r
-\r
-                                       uint16_t DataINPipeSize; /**< Size in bytes of the Printer interface's IN data pipe */\r
-                                       uint16_t DataOUTPipeSize;  /**< Size in bytes of the Printer interface's OUT data pipe */\r
-                               } State; /**< State data for the USB class interface within the device. All elements in this section\r
-                                                 *   <b>may</b> be set to initial values, but may also be ignored to default to sane values when\r
-                                                 *   the interface is enumerated.\r
-                                                 */\r
-                       } USB_ClassInfo_PRNT_Host_t;\r
-\r
-               /* Enums: */\r
-                       enum PRNTHost_EnumerationFailure_ErrorCodes_t\r
-                       {\r
-                               PRNT_ENUMERROR_NoError                    = 0, /**< Configuration Descriptor was processed successfully */\r
-                               PRNT_ENUMERROR_InvalidConfigDescriptor    = 1, /**< The device returned an invalid Configuration Descriptor */\r
-                               PRNT_ENUMERROR_NoPrinterInterfaceFound    = 2, /**< A compatible Printer interface was not found in the device's Configuration Descriptor */\r
-                               PRNT_ENUMERROR_EndpointsNotFound          = 3, /**< Compatible Printer endpoints were not found in the device's interfaces */\r
-                       };\r
-       \r
-               /* Function Prototypes: */\r
-                       /** Host interface configuration routine, to configure a given Printer host interface instance using the\r
-                        *  Configuration Descriptor read from an attached USB device. This function automatically updates the given Printer\r
-                        *  instance's state values and configures the pipes required to communicate with the interface if it is found within\r
-                        *  the device. This should be called once after the stack has enumerated the attached device, while the host state\r
-                        *  machine is in the Addressed state.\r
-                        *\r
-                        *  \param[in,out] PRNTInterfaceInfo  Pointer to a structure containing a Printer Class host configuration and state\r
-                        *  \param[in] ConfigDescriptorSize  Length of the attached device's Configuration Descriptor\r
-                        *  \param[in] DeviceConfigDescriptor  Pointer to a buffer containing the attached device's Configuration Descriptor\r
-                        *\r
-                        *  \return A value from the \ref PRNTHost_EnumerationFailure_ErrorCodes_t enum\r
-                        */\r
-                       uint8_t PRNT_Host_ConfigurePipes(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo, uint16_t ConfigDescriptorSize,\r
-                                                        void* DeviceConfigDescriptor) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(3);\r
-                       \r
-                       /** Configures the printer to enable Bidirectional mode, if it is not already in this mode. This should be called\r
-                        *  once the connected device's configuration has been set, to ensure the printer is ready to accept commands.\r
-                        *\r
-                        *  \param[in,out] PRNTInterfaceInfo  Pointer to a structure containing a Printer Class host configuration and state\r
-                        *\r
-                        *  \return A value from the \ref USB_Host_SendControlErrorCodes_t enum\r
-                        */\r
-                       uint8_t PRNT_Host_SetBidirectionalMode(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);\r
-                       \r
-                       /** Retrieves the status of the virtual Printer port's inbound status lines. The result can then be masked against the\r
-                        *  PRNT_PORTSTATUS_* macros to determine the printer port's status.\r
-                        *\r
-                        *  \param[in,out] PRNTInterfaceInfo  Pointer to a structure containing a Printer Class host configuration and state\r
-                        *  \param[out]  PortStatus  Location where the retrieved port status should be stored\r
-                        *\r
-                        *  \return A value from the \ref USB_Host_SendControlErrorCodes_t enum\r
-                        */\r
-                       uint8_t PRNT_Host_GetPortStatus(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo, uint8_t* const PortStatus)\r
-                                                       ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);\r
-\r
-                       /** Soft-resets the attached printer, readying it for new commands.\r
-                        *\r
-                        *  \param[in,out] PRNTInterfaceInfo  Pointer to a structure containing a Printer Class host configuration and state\r
-                        *\r
-                        *  \return A value from the \ref USB_Host_SendControlErrorCodes_t enum\r
-                        */\r
-                       uint8_t PRNT_Host_SoftReset(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);\r
-\r
-                       /** Sends the given raw data stream to the attached printer's input endpoint. This should contain commands that the\r
-                        *  printer is able to understand - for example, PCL data. Not all printers accept all printer languages; see\r
-                        *  \ref PRNT_Host_GetDeviceID() for details on determining acceptable languages for an attached printer.\r
-                        *\r
-                        *  \note This function must only be called when the Host state machine is in the HOST_STATE_Configured state or the\r
-                        *        call will fail.\r
-                        *\r
-                        *  \param[in,out] PRNTInterfaceInfo  Pointer to a structure containing a Printer Class host configuration and state\r
-                        *  \param[in] PrinterCommands  Pointer to a buffer containing the raw command stream to send to the printer\r
-                        *  \param[in] CommandSize  Size in bytes of the command stream to be sent\r
-                        *\r
-                        *  \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum\r
-                        */\r
-                       uint8_t PRNT_Host_SendData(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo, void* PrinterCommands, \r
-                                                  uint16_t CommandSize) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);\r
-\r
-                       /** Retrieves the attached printer device's ID string, formatted according to IEEE 1284. This string is sent as a\r
-                        *  Unicode string from the device and is automatically converted to an ASCII encoded C string by this function, thus\r
-                        *  the maximum reportable string length is two less than the size given (to accommodate the Unicode string length\r
-                        *  bytes which are removed).\r
-                        *\r
-                        *  This string, when supported, contains the model, manufacturer and acceptable printer languages for the attached device.\r
-                        *\r
-                        *  \param[in,out] PRNTInterfaceInfo  Pointer to a structure containing a Printer Class host configuration and state\r
-                        *  \param[out] DeviceIDString  Pointer to a buffer where the Device ID string should be stored, in ASCII format\r
-                        *  \param[in] BufferSize  Size in bytes of the buffer allocated for the Device ID string\r
-                        *\r
-                        *  \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum\r
-                        */\r
-                       uint8_t PRNT_Host_GetDeviceID(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo, char* DeviceIDString,\r
-                                                     uint16_t BufferSize) ATTR_NON_NULL_PTR_ARG(1);\r
-\r
-               /* Inline Functions: */\r
-                       /** General management task for a given Printer host class interface, required for the correct operation of\r
-                        *  the interface. This should be called frequently in the main program loop, before the master USB management task\r
-                        *  \ref USB_USBTask().\r
-                        *\r
-                        *  \param[in,out] PRNTInterfaceInfo  Pointer to a structure containing a Printer Class host configuration and state\r
-                        */\r
-                       static inline void PRNT_Host_USBTask(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo);\r
-                       static inline void PRNT_Host_USBTask(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo)\r
-                       {\r
-                               (void)PRNTInterfaceInfo;\r
-                       }\r
-\r
-       /* Private Interface - For use in library only: */\r
-       #if !defined(__DOXYGEN__)\r
-               /* Macros: */\r
-                       #define PRINTER_CLASS                  0x07\r
-                       #define PRINTER_SUBCLASS               0x01\r
-                       #define PRINTER_PROTOCOL               0x02\r
-\r
-                       #define REQ_GetDeviceID                0\r
-                       #define REQ_GetPortStatus              1\r
-                       #define REQ_SoftReset                  2\r
-               \r
-                       #define PRNT_FOUND_DATAPIPE_IN         (1 << 0)\r
-                       #define PRNT_FOUND_DATAPIPE_OUT        (1 << 1)\r
-                       \r
-               /* Function Prototypes: */\r
-                       #if defined(__INCLUDE_FROM_PRINTER_CLASS_HOST_C)                \r
-                               static uint8_t DComp_NextPRNTInterface(void* const CurrentDescriptor);\r
-                               static uint8_t DComp_NextPRNTInterfaceEndpoint(void* const CurrentDescriptor);\r
-                       #endif\r
-       #endif\r
-       \r
-       /* Disable C linkage for C++ Compilers: */\r
-               #if defined(__cplusplus)\r
-                       }\r
-               #endif\r
-\r
-#endif\r
-\r
-/** @} */\r
+/*
+             LUFA Library
+     Copyright (C) Dean Camera, 2010.
+              
+  dean [at] fourwalledcubicle [dot] com
+      www.fourwalledcubicle.com
+*/
+
+/*
+  Copyright 2010  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+  Permission to use, copy, modify, distribute, and sell this 
+  software and its documentation for any purpose is hereby granted
+  without fee, provided that the above copyright notice appear in 
+  all copies and that both that the copyright notice and this
+  permission notice and warranty disclaimer appear in supporting 
+  documentation, and that the name of the author not be used in 
+  advertising or publicity pertaining to distribution of the 
+  software without specific, written prior permission.
+
+  The author disclaim all warranties with regard to this
+  software, including all implied warranties of merchantability
+  and fitness.  In no event shall the author be liable for any
+  special, indirect or consequential damages or any damages
+  whatsoever resulting from loss of use, data or profits, whether
+  in an action of contract, negligence or other tortious action,
+  arising out of or in connection with the use or performance of
+  this software.
+*/
+
+/** \file
+ *  \brief Host mode driver for the library USB Printer Class driver.
+ *
+ *  Host mode driver for the library USB Printer Class driver.
+ *
+ *  \note This file should not be included directly. It is automatically included as needed by the class driver
+ *        dispatch header located in LUFA/Drivers/USB/Class/Printer.h.
+ */
+
+/** \ingroup Group_USBClassPrinter
+ *  @defgroup Group_USBClassPrinterHost Printer Class Host Mode Driver
+ *
+ *  \section Sec_Dependencies Module Source Dependencies
+ *  The following files must be built with any user project that uses this module:
+ *    - LUFA/Drivers/USB/Class/Host/Printer.c
+ *
+ *  \section Module Description
+ *  Host Mode USB Class driver framework interface, for the Printer USB Class driver.
+ *
+ *  @{
+ */
+
+#ifndef __PRINTER_CLASS_HOST_H__
+#define __PRINTER_CLASS_HOST_H__
+
+       /* Includes: */
+               #include "../../USB.h"
+               #include "../Common/Printer.h"
+               
+       /* Enable C linkage for C++ Compilers: */
+               #if defined(__cplusplus)
+                       extern "C" {
+               #endif
+
+       /* Preprocessor Checks: */
+               #if !defined(__INCLUDE_FROM_PRINTER_DRIVER)
+                       #error Do not include this file directly. Include LUFA/Drivers/Class/Printer.h instead.
+               #endif
+
+       /* Public Interface - May be used in end-application: */
+               /* Type Defines: */
+                       /** \brief Printer Class Host Mode Configuration and State Structure.
+                        *
+                        *  Class state structure. An instance of this structure should be made within the user application,
+                        *  and passed to each of the Printer class driver functions as the PRNTInterfaceInfo parameter. This
+                        *  stores each Printer interface's configuration and state information.
+                        */
+                       typedef struct
+                       {
+                               const struct
+                               {
+                                       uint8_t  DataINPipeNumber; /**< Pipe number of the Printer interface's IN data pipe */
+                                       bool     DataINPipeDoubleBank; /** Indicates if the Printer interface's IN data pipe should use double banking */
+
+                                       uint8_t  DataOUTPipeNumber; /**< Pipe number of the Printer interface's OUT data pipe */
+                                       bool     DataOUTPipeDoubleBank; /** Indicates if the Printer interface's OUT data pipe should use double banking */
+                               } Config; /**< Config data for the USB class interface within the device. All elements in this section
+                                          *   <b>must</b> be set or the interface will fail to enumerate and operate correctly.
+                                          */
+                               struct
+                               {
+                                       bool IsActive; /**< Indicates if the current interface instance is connected to an attached device, valid
+                                                       *   after \ref PRNT_Host_ConfigurePipes() is called and the Host state machine is in the
+                                                       *   Configured state
+                                                       */
+                                       uint8_t InterfaceNumber; /**< Interface index of the Printer interface within the attached device */
+                                       uint8_t AlternateSetting; /**< Alternate setting within the Printer Interface in the attached device */
+
+                                       uint16_t DataINPipeSize; /**< Size in bytes of the Printer interface's IN data pipe */
+                                       uint16_t DataOUTPipeSize;  /**< Size in bytes of the Printer interface's OUT data pipe */
+                               } State; /**< State data for the USB class interface within the device. All elements in this section
+                                                 *   <b>may</b> be set to initial values, but may also be ignored to default to sane values when
+                                                 *   the interface is enumerated.
+                                                 */
+                       } USB_ClassInfo_PRNT_Host_t;
+
+               /* Enums: */
+                       enum PRNTHost_EnumerationFailure_ErrorCodes_t
+                       {
+                               PRNT_ENUMERROR_NoError                    = 0, /**< Configuration Descriptor was processed successfully */
+                               PRNT_ENUMERROR_InvalidConfigDescriptor    = 1, /**< The device returned an invalid Configuration Descriptor */
+                               PRNT_ENUMERROR_NoPrinterInterfaceFound    = 2, /**< A compatible Printer interface was not found in the device's Configuration Descriptor */
+                               PRNT_ENUMERROR_EndpointsNotFound          = 3, /**< Compatible Printer endpoints were not found in the device's interfaces */
+                       };
+       
+               /* Function Prototypes: */
+                       /** Host interface configuration routine, to configure a given Printer host interface instance using the
+                        *  Configuration Descriptor read from an attached USB device. This function automatically updates the given Printer
+                        *  instance's state values and configures the pipes required to communicate with the interface if it is found within
+                        *  the device. This should be called once after the stack has enumerated the attached device, while the host state
+                        *  machine is in the Addressed state.
+                        *
+                        *  \param[in,out] PRNTInterfaceInfo  Pointer to a structure containing a Printer Class host configuration and state
+                        *  \param[in] ConfigDescriptorSize  Length of the attached device's Configuration Descriptor
+                        *  \param[in] DeviceConfigDescriptor  Pointer to a buffer containing the attached device's Configuration Descriptor
+                        *
+                        *  \return A value from the \ref PRNTHost_EnumerationFailure_ErrorCodes_t enum
+                        */
+                       uint8_t PRNT_Host_ConfigurePipes(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo, uint16_t ConfigDescriptorSize,
+                                                        void* DeviceConfigDescriptor) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(3);
+                       
+                       /** Configures the printer to enable Bidirectional mode, if it is not already in this mode. This should be called
+                        *  once the connected device's configuration has been set, to ensure the printer is ready to accept commands.
+                        *
+                        *  \param[in,out] PRNTInterfaceInfo  Pointer to a structure containing a Printer Class host configuration and state
+                        *
+                        *  \return A value from the \ref USB_Host_SendControlErrorCodes_t enum
+                        */
+                       uint8_t PRNT_Host_SetBidirectionalMode(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
+                       
+                       /** Retrieves the status of the virtual Printer port's inbound status lines. The result can then be masked against the
+                        *  PRNT_PORTSTATUS_* macros to determine the printer port's status.
+                        *
+                        *  \param[in,out] PRNTInterfaceInfo  Pointer to a structure containing a Printer Class host configuration and state
+                        *  \param[out]  PortStatus  Location where the retrieved port status should be stored
+                        *
+                        *  \return A value from the \ref USB_Host_SendControlErrorCodes_t enum
+                        */
+                       uint8_t PRNT_Host_GetPortStatus(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo, uint8_t* const PortStatus)
+                                                       ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);
+
+                       /** Soft-resets the attached printer, readying it for new commands.
+                        *
+                        *  \param[in,out] PRNTInterfaceInfo  Pointer to a structure containing a Printer Class host configuration and state
+                        *
+                        *  \return A value from the \ref USB_Host_SendControlErrorCodes_t enum
+                        */
+                       uint8_t PRNT_Host_SoftReset(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
+
+                       /** Sends the given raw data stream to the attached printer's input endpoint. This should contain commands that the
+                        *  printer is able to understand - for example, PCL data. Not all printers accept all printer languages; see
+                        *  \ref PRNT_Host_GetDeviceID() for details on determining acceptable languages for an attached printer.
+                        *
+                        *  \note This function must only be called when the Host state machine is in the HOST_STATE_Configured state or the
+                        *        call will fail.
+                        *
+                        *  \param[in,out] PRNTInterfaceInfo  Pointer to a structure containing a Printer Class host configuration and state
+                        *  \param[in] PrinterCommands  Pointer to a buffer containing the raw command stream to send to the printer
+                        *  \param[in] CommandSize  Size in bytes of the command stream to be sent
+                        *
+                        *  \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum
+                        */
+                       uint8_t PRNT_Host_SendData(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo, void* PrinterCommands, 
+                                                  uint16_t CommandSize) ATTR_NON_NULL_PTR_ARG(1) ATTR_NON_NULL_PTR_ARG(2);
+
+                       /** Retrieves the attached printer device's ID string, formatted according to IEEE 1284. This string is sent as a
+                        *  Unicode string from the device and is automatically converted to an ASCII encoded C string by this function, thus
+                        *  the maximum reportable string length is two less than the size given (to accommodate the Unicode string length
+                        *  bytes which are removed).
+                        *
+                        *  This string, when supported, contains the model, manufacturer and acceptable printer languages for the attached device.
+                        *
+                        *  \param[in,out] PRNTInterfaceInfo  Pointer to a structure containing a Printer Class host configuration and state
+                        *  \param[out] DeviceIDString  Pointer to a buffer where the Device ID string should be stored, in ASCII format
+                        *  \param[in] BufferSize  Size in bytes of the buffer allocated for the Device ID string
+                        *
+                        *  \return A value from the \ref Pipe_Stream_RW_ErrorCodes_t enum
+                        */
+                       uint8_t PRNT_Host_GetDeviceID(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo, char* DeviceIDString,
+                                                     uint16_t BufferSize) ATTR_NON_NULL_PTR_ARG(1);
+
+               /* Inline Functions: */
+                       /** General management task for a given Printer host class interface, required for the correct operation of
+                        *  the interface. This should be called frequently in the main program loop, before the master USB management task
+                        *  \ref USB_USBTask().
+                        *
+                        *  \param[in,out] PRNTInterfaceInfo  Pointer to a structure containing a Printer Class host configuration and state
+                        */
+                       static inline void PRNT_Host_USBTask(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo);
+                       static inline void PRNT_Host_USBTask(USB_ClassInfo_PRNT_Host_t* const PRNTInterfaceInfo)
+                       {
+                               (void)PRNTInterfaceInfo;
+                       }
+
+       /* Private Interface - For use in library only: */
+       #if !defined(__DOXYGEN__)
+               /* Macros: */
+                       #define PRINTER_CLASS                  0x07
+                       #define PRINTER_SUBCLASS               0x01
+                       #define PRINTER_PROTOCOL               0x02
+
+                       #define REQ_GetDeviceID                0
+                       #define REQ_GetPortStatus              1
+                       #define REQ_SoftReset                  2
+               
+                       #define PRNT_FOUND_DATAPIPE_IN         (1 << 0)
+                       #define PRNT_FOUND_DATAPIPE_OUT        (1 << 1)
+                       
+               /* Function Prototypes: */
+                       #if defined(__INCLUDE_FROM_PRINTER_CLASS_HOST_C)                
+                               static uint8_t DComp_NextPRNTInterface(void* const CurrentDescriptor);
+                               static uint8_t DComp_NextPRNTInterfaceEndpoint(void* const CurrentDescriptor);
+                       #endif
+       #endif
+       
+       /* Disable C linkage for C++ Compilers: */
+               #if defined(__cplusplus)
+                       }
+               #endif
+
+#endif
+
+/** @} */