diff options
Diffstat (limited to 'LUFA/Drivers/USB/HighLevel/StdDescriptors.h')
| -rw-r--r-- | LUFA/Drivers/USB/HighLevel/StdDescriptors.h | 535 |
1 files changed, 323 insertions, 212 deletions
diff --git a/LUFA/Drivers/USB/HighLevel/StdDescriptors.h b/LUFA/Drivers/USB/HighLevel/StdDescriptors.h index 0e0d1e9f4..0b56ab6d0 100644 --- a/LUFA/Drivers/USB/HighLevel/StdDescriptors.h +++ b/LUFA/Drivers/USB/HighLevel/StdDescriptors.h @@ -34,16 +34,6 @@ * Standard USB device descriptor defines and retrieval routines, for USB devices. This module contains
* structures and macros for the easy creation of standard USB descriptors in USB device projects.
*
- * All standard descriptors have their elements named in an identical manner to the official USB specification,
- * however slightly more verbose alternate (non-standard) names are also supplied if the macro
- * USE_NONSTANDARD_DESCRIPTOR_NAMES is defined in the user project makefile and passed to the compiler at
- * compilation time using the -D option.
- *
- * The non-standard names are documented here - if USE_NONSTANDARD_DESCRIPTOR_NAMES is not defined, then all
- * descriptors will contain elements named identically to the official USB specification. The alternately
- * named descriptor elements are placed in the same order inside the descriptor structures as their officially
- * named counterparts, thus they can be correlated easily with the official USB specification.
- *
* @{
*/
@@ -206,170 +196,232 @@ };
/* Type Defines: */
- /** Type define for all descriptor's header, indicating the descriptor's length and type.
+ /** Type define for all descriptors standard header, indicating the descriptor's length and type. This structure
+ * uses LUFA-specific element names to make each element's purpose clearer.
*
- * \note The non-standard structure element names are documented here. If the
- * USE_NONSTANDARD_DESCRIPTOR_NAMES token is not set, this structure contains elements
- * with names identical to those listed in the USB standard.
+ * \see \ref USB_StdDescriptor_Header_t for the version of this define with standard element names
*/
typedef struct
{
- #if defined(USE_NONSTANDARD_DESCRIPTOR_NAMES) || defined(__DOXYGEN__)
- uint8_t Size; /**< Size of the descriptor, in bytes. */
- uint8_t Type; /**< Type of the descriptor, either a value in \ref USB_DescriptorTypes_t or a value
- * given by the specific class.
- */
- #else
- uint8_t bLength;
- uint8_t bDescriptorType;
- #endif
+ uint8_t Size; /**< Size of the descriptor, in bytes. */
+ uint8_t Type; /**< Type of the descriptor, either a value in \ref USB_DescriptorTypes_t or a value
+ * given by the specific class.
+ */
} USB_Descriptor_Header_t;
- /** Type define for a standard device descriptor.
+ /** Type define for all descriptors standard header, indicating the descriptor's length and type. This structure
+ * uses the relevant standard's given element names to ensure compatibility with the standard.
+ *
+ * \see \ref USB_Descriptor_Header_t for the version of this define with non-standard LUFA specific element names
+ */
+ typedef struct
+ {
+ uint8_t bLength; /**< Size of the descriptor, in bytes. */
+ uint8_t bDescriptorType; /**< Type of the descriptor, either a value in \ref USB_DescriptorTypes_t or a value
+ * given by the specific class.
+ */
+ } USB_StdDescriptor_Header_t;
+
+ /** Type define for a standard Device Descriptor. This structure uses LUFA-specific element names to make each
+ * element's purpose clearer.
*
- * \note The non-standard structure element names are documented here. If the
- * USE_NONSTANDARD_DESCRIPTOR_NAMES token is not set, this structure contains elements
- * with names identical to those listed in the USB standard.
+ * \see \ref USB_StdDescriptor_Device_t for the version of this define with standard element names
*/
typedef struct
{
- #if defined(USE_NONSTANDARD_DESCRIPTOR_NAMES) || defined(__DOXYGEN__)
USB_Descriptor_Header_t Header; /**< Descriptor header, including type and size. */
- uint16_t USBSpecification; /**< BCD of the supported USB specification. */
- uint8_t Class; /**< USB device class. */
- uint8_t SubClass; /**< USB device subclass. */
- uint8_t Protocol; /**< USB device protocol. */
+ uint16_t USBSpecification; /**< BCD of the supported USB specification. */
+ uint8_t Class; /**< USB device class. */
+ uint8_t SubClass; /**< USB device subclass. */
+ uint8_t Protocol; /**< USB device protocol. */
- uint8_t Endpoint0Size; /**< Size of the control (address 0) endpoint's bank in bytes. */
+ uint8_t Endpoint0Size; /**< Size of the control (address 0) endpoint's bank in bytes. */
- uint16_t VendorID; /**< Vendor ID for the USB product. */
- uint16_t ProductID; /**< Unique product ID for the USB product. */
- uint16_t ReleaseNumber; /**< Product release (version) number. */
+ uint16_t VendorID; /**< Vendor ID for the USB product. */
+ uint16_t ProductID; /**< Unique product ID for the USB product. */
+ uint16_t ReleaseNumber; /**< Product release (version) number. */
- uint8_t ManufacturerStrIndex; /**< String index for the manufacturer's name. The
- * host will request this string via a separate
- * control request for the string descriptor.
- *
- * \note If no string supplied, use \ref NO_DESCRIPTOR.
- */
- uint8_t ProductStrIndex; /**< String index for the product name/details.
- *
- * \see ManufacturerStrIndex structure entry.
- */
- uint8_t SerialNumStrIndex; /**< String index for the product's globally unique hexadecimal
- * serial number, in uppercase Unicode ASCII.
- *
- * \note On some AVR models, there is an embedded serial number
- * in the chip which can be used for the device serial number.
- * To use this serial number, set this to USE_INTERNAL_SERIAL.
- * On unsupported devices, this will evaluate to 0 and will cause
- * the host to generate a pseudo-unique value for the device upon
- * insertion.
- *
- * \see ManufacturerStrIndex structure entry.
- */
-
- uint8_t NumberOfConfigurations; /**< Total number of configurations supported by
- * the device.
- */
- #else
- uint8_t bLength;
- uint8_t bDescriptorType;
- uint16_t bcdUSB;
- uint8_t bDeviceClass;
- uint8_t bDeviceSubClass;
- uint8_t bDeviceProtocol;
- uint8_t bMaxPacketSize0;
- uint16_t idVendor;
- uint16_t idProduct;
- uint16_t bcdDevice;
- uint8_t iManufacturer;
- uint8_t iProduct;
- uint8_t iSerialNumber;
- uint8_t bNumConfigurations;
- #endif
+ uint8_t ManufacturerStrIndex; /**< String index for the manufacturer's name. The
+ * host will request this string via a separate
+ * control request for the string descriptor.
+ *
+ * \note If no string supplied, use \ref NO_DESCRIPTOR.
+ */
+ uint8_t ProductStrIndex; /**< String index for the product name/details.
+ *
+ * \see ManufacturerStrIndex structure entry.
+ */
+ uint8_t SerialNumStrIndex; /**< String index for the product's globally unique hexadecimal
+ * serial number, in uppercase Unicode ASCII.
+ *
+ * \note On some AVR models, there is an embedded serial number
+ * in the chip which can be used for the device serial number.
+ * To use this serial number, set this to USE_INTERNAL_SERIAL.
+ * On unsupported devices, this will evaluate to 0 and will cause
+ * the host to generate a pseudo-unique value for the device upon
+ * insertion.
+ *
+ * \see ManufacturerStrIndex structure entry.
+ */
+ uint8_t NumberOfConfigurations; /**< Total number of configurations supported by
+ * the device.
+ */
} USB_Descriptor_Device_t;
- /** Type define for a standard configuration descriptor.
+ /** Type define for a standard Device Descriptor. This structure uses the relevant standard's given element names
+ * to ensure compatibility with the standard.
*
- * \note The non-standard structure element names are documented here. If the
- * USE_NONSTANDARD_DESCRIPTOR_NAMES token is not set, this structure contains elements
- * with names identical to those listed in the USB standard.
+ * \see \ref USB_Descriptor_Device_t for the version of this define with non-standard LUFA specific element names
+ */
+ typedef struct
+ {
+ uint8_t bLength; /**< Size of the descriptor, in bytes. */
+ uint8_t bDescriptorType; /**< Type of the descriptor, either a value in \ref USB_DescriptorTypes_t or a value
+ * given by the specific class.
+ */
+ uint16_t bcdUSB; /**< BCD of the supported USB specification. */
+ uint8_t bDeviceClass; /**< USB device class. */
+ uint8_t bDeviceSubClass; /**< USB device subclass. */
+ uint8_t bDeviceProtocol; /**< USB device protocol. */
+ uint8_t bMaxPacketSize0; /**< Size of the control (address 0) endpoint's bank in bytes. */
+ uint16_t idVendor; /**< Vendor ID for the USB product. */
+ uint16_t idProduct; /**< Unique product ID for the USB product. */
+ uint16_t bcdDevice; /**< Product release (version) number. */
+ uint8_t iManufacturer; /**< String index for the manufacturer's name. The
+ * host will request this string via a separate
+ * control request for the string descriptor.
+ *
+ * \note If no string supplied, use \ref NO_DESCRIPTOR.
+ */
+ uint8_t iProduct; /**< String index for the product name/details.
+ *
+ * \see ManufacturerStrIndex structure entry.
+ */
+ uint8_t iSerialNumber; /**< String index for the product's globally unique hexadecimal
+ * serial number, in uppercase Unicode ASCII.
+ *
+ * \note On some AVR models, there is an embedded serial number
+ * in the chip which can be used for the device serial number.
+ * To use this serial number, set this to USE_INTERNAL_SERIAL.
+ * On unsupported devices, this will evaluate to 0 and will cause
+ * the host to generate a pseudo-unique value for the device upon
+ * insertion.
+ *
+ * \see ManufacturerStrIndex structure entry.
+ */
+ uint8_t bNumConfigurations; /**< Total number of configurations supported by
+ * the device.
+ */
+ } USB_StdDescriptor_Device_t;
+
+ /** Type define for a standard Configuration Descriptor header. This structure uses LUFA-specific element names
+ * to make each element's purpose clearer.
+ *
+ * \see \ref USB_StdDescriptor_Configuration_Header_t for the version of this define with standard element names
*/
typedef struct
{
- #if defined(USE_NONSTANDARD_DESCRIPTOR_NAMES) || defined(__DOXYGEN__)
USB_Descriptor_Header_t Header; /**< Descriptor header, including type and size. */
- uint16_t TotalConfigurationSize; /**< Size of the configuration descriptor header,
- * and all sub descriptors inside the configuration.
- */
- uint8_t TotalInterfaces; /**< Total number of interfaces in the configuration. */
+ uint16_t TotalConfigurationSize; /**< Size of the configuration descriptor header,
+ * and all sub descriptors inside the configuration.
+ */
+ uint8_t TotalInterfaces; /**< Total number of interfaces in the configuration. */
- uint8_t ConfigurationNumber; /**< Configuration index of the current configuration. */
- uint8_t ConfigurationStrIndex; /**< Index of a string descriptor describing the configuration. */
+ uint8_t ConfigurationNumber; /**< Configuration index of the current configuration. */
+ uint8_t ConfigurationStrIndex; /**< Index of a string descriptor describing the configuration. */
- uint8_t ConfigAttributes; /**< Configuration attributes, comprised of a mask of zero or
- * more USB_CONFIG_ATTR_* masks.
- */
+ uint8_t ConfigAttributes; /**< Configuration attributes, comprised of a mask of zero or
+ * more USB_CONFIG_ATTR_* masks.
+ */
- uint8_t MaxPowerConsumption; /**< Maximum power consumption of the device while in the
- * current configuration, calculated by the \ref USB_CONFIG_POWER_MA()
- * macro.
- */
- #else
- uint8_t bLength;
- uint8_t bDescriptorType;
- uint16_t wTotalLength;
- uint8_t bNumInterfaces;
- uint8_t bConfigurationValue;
- uint8_t iConfiguration;
- uint8_t bmAttributes;
- uint8_t bMaxPower;
- #endif
+ uint8_t MaxPowerConsumption; /**< Maximum power consumption of the device while in the
+ * current configuration, calculated by the \ref USB_CONFIG_POWER_MA()
+ * macro.
+ */
} USB_Descriptor_Configuration_Header_t;
-
- /** Type define for a standard interface descriptor.
+
+ /** Type define for a standard Configuration Descriptor header. This structure uses the relevant standard's given element names
+ * to ensure compatibility with the standard.
*
- * \note The non-standard structure element names are documented here. If the
- * USE_NONSTANDARD_DESCRIPTOR_NAMES token is not set, this structure contains elements
- * with names identical to those listed in the USB standard.
+ * \see \ref USB_Descriptor_Device_t for the version of this define with non-standard LUFA specific element names
+ */
+ typedef struct
+ {
+ uint8_t bLength; /**< Size of the descriptor, in bytes. */
+ uint8_t bDescriptorType; /**< Type of the descriptor, either a value in \ref USB_DescriptorTypes_t or a value
+ * given by the specific class.
+ */
+ uint16_t wTotalLength; /**< Size of the configuration descriptor header,
+ * and all sub descriptors inside the configuration.
+ */
+ uint8_t bNumInterfaces; /**< Total number of interfaces in the configuration. */
+ uint8_t bConfigurationValue; /**< Configuration index of the current configuration. */
+ uint8_t iConfiguration; /**< Index of a string descriptor describing the configuration. */
+ uint8_t bmAttributes; /**< Configuration attributes, comprised of a mask of zero or
+ * more USB_CONFIG_ATTR_* masks.
+ */
+ uint8_t bMaxPower; /**< Maximum power consumption of the device while in the
+ * current configuration, calculated by the \ref USB_CONFIG_POWER_MA()
+ * macro.
+ */
+ } USB_StdDescriptor_Configuration_Header_t;
+
+ /** Type define for a standard Interface Descriptor. This structure uses LUFA-specific element names
+ * to make each element's purpose clearer.
+ *
+ * \see \ref USB_StdDescriptor_Interface_t for the version of this define with standard element names
*/
typedef struct
{
- #if defined(USE_NONSTANDARD_DESCRIPTOR_NAMES) || defined(__DOXYGEN__)
USB_Descriptor_Header_t Header; /**< Descriptor header, including type and size. */
- uint8_t InterfaceNumber; /**< Index of the interface in the current configuration. */
- uint8_t AlternateSetting; /**< Alternate setting for the interface number. The same
- * interface number can have multiple alternate settings
- * with different endpoint configurations, which can be
- * selected by the host.
- */
- uint8_t TotalEndpoints; /**< Total number of endpoints in the interface. */
+ uint8_t InterfaceNumber; /**< Index of the interface in the current configuration. */
+ uint8_t AlternateSetting; /**< Alternate setting for the interface number. The same
+ * interface number can have multiple alternate settings
+ * with different endpoint configurations, which can be
+ * selected by the host.
+ */
+ uint8_t TotalEndpoints; /**< Total number of endpoints in the interface. */
- uint8_t Class; /**< Interface class ID. */
- uint8_t SubClass; /**< Interface subclass ID. */
- uint8_t Protocol; /**< Interface protocol ID. */
-
- uint8_t InterfaceStrIndex; /**< Index of the string descriptor describing the
- * interface.
- */
- #else
- uint8_t bLength;
- uint8_t bDescriptorType;
- uint8_t bInterfaceNumber;
- uint8_t bAlternateSetting;
- uint8_t bNumEndpoints;
- uint8_t bInterfaceClass;
- uint8_t bInterfaceSubClass;
- uint8_t bInterfaceProtocol;
- uint8_t iInterface;
- #endif
- } USB_Descriptor_Interface_t;
+ uint8_t Class; /**< Interface class ID. */
+ uint8_t SubClass; /**< Interface subclass ID. */
+ uint8_t Protocol; /**< Interface protocol ID. */
- /** Type define for a standard Interface Association descriptor.
+ uint8_t InterfaceStrIndex; /**< Index of the string descriptor describing the
+ * interface.
+ */
+ } USB_Descriptor_Interface_t;
+
+ /** Type define for a standard Interface Descriptor. This structure uses the relevant standard's given element names
+ * to ensure compatibility with the standard.
+ *
+ * \see \ref USB_Descriptor_Interface_t for the version of this define with non-standard LUFA specific element names
+ */
+ typedef struct
+ {
+ uint8_t bLength; /**< Size of the descriptor, in bytes. */
+ uint8_t bDescriptorType; /**< Type of the descriptor, either a value in \ref USB_DescriptorTypes_t or a value
+ * given by the specific class.
+ */
+ uint8_t bInterfaceNumber; /**< Index of the interface in the current configuration. */
+ uint8_t bAlternateSetting; /**< Alternate setting for the interface number. The same
+ * interface number can have multiple alternate settings
+ * with different endpoint configurations, which can be
+ * selected by the host.
+ */
+ uint8_t bNumEndpoints; /**< Total number of endpoints in the interface. */
+ uint8_t bInterfaceClass; /**< Interface class ID. */
+ uint8_t bInterfaceSubClass; /**< Interface subclass ID. */
+ uint8_t bInterfaceProtocol; /**< Interface protocol ID. */
+ uint8_t iInterface; /**< Index of the string descriptor describing the
+ * interface.
+ */
+ } USB_StdDescriptor_Interface_t;
+
+ /** Type define for a standard Interface Association Descriptor. This structure uses LUFA-specific element names
+ * to make each element's purpose clearer.
*
* This descriptor has been added as a supplement to the USB2.0 standard, in the ECN located at
* <a>http://www.usb.org/developers/docs/InterfaceAssociationDescriptor_ecn.pdf</a>. It allows compound
@@ -377,72 +429,105 @@ * together at the point of enumeration, loading one generic driver for all the interfaces in the single
* function. Read the ECN for more information.
*
- * \note The non-standard structure element names are documented here. If the
- * USE_NONSTANDARD_DESCRIPTOR_NAMES token is not set, this structure contains elements
- * with names identical to those listed in the USB standard.
+ * \see \ref USB_StdDescriptor_Interface_Association_t for the version of this define with standard element names
*/
typedef struct
{
- #if defined(USE_NONSTANDARD_DESCRIPTOR_NAMES) || defined(__DOXYGEN__)
USB_Descriptor_Header_t Header; /**< Descriptor header, including type and size. */
- uint8_t FirstInterfaceIndex; /**< Index of the first associated interface. */
- uint8_t TotalInterfaces; /** Total number of associated interfaces. */
-
- uint8_t Class; /**< Interface class ID. */
- uint8_t SubClass; /**< Interface subclass ID. */
- uint8_t Protocol; /**< Interface protocol ID. */
-
- uint8_t IADStrIndex; /**< Index of the string descriptor describing the
- * interface association.
- */
- #else
- uint8_t bLength;
- uint8_t bDescriptorType;
- uint8_t bFirstInterface;
- uint8_t bInterfaceCount;
- uint8_t bFunctionClass;
- uint8_t bFunctionSubClass;
- uint8_t bFunctionProtocol;
- uint8_t iFunction;
- #endif
- } USB_Descriptor_Interface_Association_t;
+ uint8_t FirstInterfaceIndex; /**< Index of the first associated interface. */
+ uint8_t TotalInterfaces; /** Total number of associated interfaces. */
- /** Type define for a standard endpoint descriptor.
+ uint8_t Class; /**< Interface class ID. */
+ uint8_t SubClass; /**< Interface subclass ID. */
+ uint8_t Protocol; /**< Interface protocol ID. */
+
+ uint8_t IADStrIndex; /**< Index of the string descriptor describing the
+ * interface association.
+ */
+ } USB_Descriptor_Interface_Association_t;
+
+ /** Type define for a standard Interface Association Descriptor. This structure uses the relevant standard's given
+ * element names to ensure compatibility with the standard.
*
- * \note The non-standard structure element names are documented here. If the
- * USE_NONSTANDARD_DESCRIPTOR_NAMES token is not set, this structure contains elements
- * with names identical to those listed in the USB standard.
- */
+ * This descriptor has been added as a supplement to the USB2.0 standard, in the ECN located at
+ * <a>http://www.usb.org/developers/docs/InterfaceAssociationDescriptor_ecn.pdf</a>. It allows compound
+ * devices with multiple interfaces related to the same function to have the multiple interfaces bound
+ * together at the point of enumeration, loading one generic driver for all the interfaces in the single
+ * function. Read the ECN for more information.
+ *
+ * \see \ref USB_Descriptor_Interface_Association_t for the version of this define with non-standard LUFA specific
+ * element names
+ */
+ typedef struct
+ {
+ uint8_t bLength; /**< Size of the descriptor, in bytes. */
+ uint8_t bDescriptorType; /**< Type of the descriptor, either a value in \ref USB_DescriptorTypes_t or a value
+ * given by the specific class.
+ */
+ uint8_t bFirstInterface; /**< Index of the first associated interface. */
+ uint8_t bInterfaceCount; /** Total number of associated interfaces. */
+ uint8_t bFunctionClass; /**< Interface class ID. */
+ uint8_t bFunctionSubClass; /**< Interface subclass ID. */
+ uint8_t bFunctionProtocol; /**< Interface protocol ID. */
+ uint8_t iFunction; /**< Index of the string descriptor describing the
+ * interface association.
+ */
+ } USB_StdDescriptor_Interface_Association_t;
+
+ /** Type define for a standard Endpoint Descriptor. This structure uses LUFA-specific element names
+ * to make each element's purpose clearer.
+ *
+ * \see \ref USB_StdDescriptor_Endpoint_t for the version of this define with standard element names
+ */
typedef struct
{
- #if defined(USE_NONSTANDARD_DESCRIPTOR_NAMES) || defined(__DOXYGEN__)
USB_Descriptor_Header_t Header; /**< Descriptor header, including type and size. */
- uint8_t EndpointAddress; /**< Logical address of the endpoint within the device
- * for the current configuration, including direction
- * mask.
- */
- uint8_t Attributes; /**< Endpoint attributes, comprised of a mask of the
- * endpoint type (EP_TYPE_*) and attributes (ENDPOINT_ATTR_*)
- * masks.
- */
- uint16_t EndpointSize; /**< Size of the endpoint bank, in bytes. This indicates the
- * maximum packet size that the endpoint can receive at a time.
- */
+ uint8_t EndpointAddress; /**< Logical address of the endpoint within the device
+ * for the current configuration, including direction
+ * mask.
+ */
+ uint8_t Attributes; /**< Endpoint attributes, comprised of a mask of the
+ * endpoint type (EP_TYPE_*) and attributes (ENDPOINT_ATTR_*)
+ * masks.
+ */
+ uint16_t EndpointSize; /**< Size of the endpoint bank, in bytes. This indicates the
+ * maximum packet size that the endpoint can receive at a time.
+ */
- uint8_t PollingIntervalMS; /**< Polling interval in milliseconds for the endpoint
- * if it is an INTERRUPT or ISOCHRONOUS type.
- */
- #else
- uint8_t bLength;
- uint8_t bDescriptorType;
- uint8_t bEndpointAddress;
- uint8_t bmAttributes;
- uint16_t wMaxPacketSize;
- uint8_t bInterval;
- #endif
+ uint8_t PollingIntervalMS; /**< Polling interval in milliseconds for the endpoint
+ * if it is an INTERRUPT or ISOCHRONOUS type.
+ */
} USB_Descriptor_Endpoint_t;
+
+ /** Type define for a standard Endpoint Descriptor. This structure uses the relevant standard's given
+ * element names to ensure compatibility with the standard.
+ *
+ * \see \ref USB_Descriptor_Endpoint_t for the version of this define with non-standard LUFA specific
+ * element names
+ */
+ typedef struct
+ {
+ uint8_t bLength; /**< Size of the descriptor, in bytes. */
+ uint8_t bDescriptorType; /**< Type of the descriptor, either a value in \ref USB_DescriptorTypes_t or a value
+ * given by the specific class.
+ */
+ uint8_t bEndpointAddress; /**< Logical address of the endpoint within the device
+ * for the current configuration, including direction
+ * mask.
+ */
+ uint8_t bmAttributes; /**< Endpoint attributes, comprised of a mask of the
+ * endpoint type (EP_TYPE_*) and attributes (ENDPOINT_ATTR_*)
+ * masks.
+ */
+ uint16_t wMaxPacketSize; /**< Size of the endpoint bank, in bytes. This indicates the
+ * maximum packet size that the endpoint can receive at a time.
+ */
+ uint8_t bInterval; /**< Polling interval in milliseconds for the endpoint
+ * if it is an INTERRUPT or ISOCHRONOUS type.
+ */
+ } USB_StdDescriptor_Endpoint_t;
/** Type define for a standard string descriptor. Unlike other standard descriptors, the length
* of the descriptor for placement in the descriptor header must be determined by the \ref USB_STRING_LEN()
@@ -451,33 +536,59 @@ * This structure should also be used for string index 0, which contains the supported language IDs for
* the device as an array.
*
- * \note The non-standard structure element names are documented here. If the
- * USE_NONSTANDARD_DESCRIPTOR_NAMES token is not set, this structure contains elements
- * with names identical to those listed in the USB standard.
+ * This structure uses LUFA-specific element names to make each element's purpose clearer.
+ *
+ * \see \ref USB_StdDescriptor_String_t for the version of this define with standard element names
*/
typedef struct
{
- #if defined(USE_NONSTANDARD_DESCRIPTOR_NAMES) || defined(__DOXYGEN__)
USB_Descriptor_Header_t Header; /**< Descriptor header, including type and size. */
- int16_t UnicodeString[]; /**< String data, as unicode characters (alternatively,
- * string language IDs). If normal ASCII characters are
- * to be used, they must be added as an array of characters
- * rather than a normal C string so that they are widened to
- * Unicode size.
- *
- * Under GCC, strings prefixed with the "L" character (before
- * the opening string quotation mark) are considered to be
- * Unicode strings, and may be used instead of an explicit
- * array of ASCII characters.
- */
- #else
- uint8_t bLength;
- uint8_t bDescriptorType;
- int16_t bString[];
- #endif
+ int16_t UnicodeString[]; /**< String data, as unicode characters (alternatively,
+ * string language IDs). If normal ASCII characters are
+ * to be used, they must be added as an array of characters
+ * rather than a normal C string so that they are widened to
+ * Unicode size.
+ *
+ * Under GCC, strings prefixed with the "L" character (before
+ * the opening string quotation mark) are considered to be
+ * Unicode strings, and may be used instead of an explicit
+ * array of ASCII characters.
+ */
} USB_Descriptor_String_t;
+ /** Type define for a standard string descriptor. Unlike other standard descriptors, the length
+ * of the descriptor for placement in the descriptor header must be determined by the \ref USB_STRING_LEN()
+ * macro rather than by the size of the descriptor structure, as the length is not fixed.
+ *
+ * This structure should also be used for string index 0, which contains the supported language IDs for
+ * the device as an array.
+ *
+ * This structure uses the relevant standard's given element names to ensure compatibility with the standard.
+ *
+ * \see \ref USB_Descriptor_String_t for the version of this define with with non-standard LUFA specific
+ * element names
+ */
+ typedef struct
+ {
+ uint8_t bLength; /**< Size of the descriptor, in bytes. */
+ uint8_t bDescriptorType; /**< Type of the descriptor, either a value in
+ * \ref USB_DescriptorTypes_t or a value
+ * given by the specific class.
+ */
+ int16_t bString[]; /**< String data, as unicode characters (alternatively,
+ * string language IDs). If normal ASCII characters are
+ * to be used, they must be added as an array of characters
+ * rather than a normal C string so that they are widened to
+ * Unicode size.
+ *
+ * Under GCC, strings prefixed with the "L" character (before
+ * the opening string quotation mark) are considered to be
+ * Unicode strings, and may be used instead of an explicit
+ * array of ASCII characters.
+ */
+ } USB_StdDescriptor_String_t;
+
/* Private Interface - For use in library only: */
#if !defined(__DOXYGEN__)
/* Macros: */
|