* See the USB Audio specification for more details.
*
* \see \ref USB_MIDI_StdDescriptor_AudioInterface_AS_t for the version of this type with standard element names.
+ *
+ * \note Regardless of CPU architecture, these values should be stored as little endian.
*/
typedef struct
{
* specification version.
*/
uint16_t TotalLength; /**< Total length of the Audio class-specific descriptors, including this descriptor. */
- } USB_MIDI_Descriptor_AudioInterface_AS_t;
+ } ATTR_PACKED USB_MIDI_Descriptor_AudioInterface_AS_t;
/** \brief MIDI class-specific Streaming Interface Descriptor (USB-IF naming conventions).
*
*
* \see \ref USB_MIDI_Descriptor_AudioInterface_AS_t for the version of this type with non-standard LUFA specific
* element names.
+ *
+ * \note Regardless of CPU architecture, these values should be stored as little endian.
*/
typedef struct
{
uint16_t bcdMSC; /**< Binary coded decimal value, indicating the supported MIDI Class specification version. */
uint16_t wTotalLength; /**< Total length of the Audio class-specific descriptors, including this descriptor. */
- } USB_MIDI_StdDescriptor_AudioInterface_AS_t;
+ } ATTR_PACKED USB_MIDI_StdDescriptor_AudioInterface_AS_t;
/** \brief MIDI class-specific Input Jack Descriptor (LUFA naming conventions).
*
* a physical input jack, or a logical jack (receiving input data internally, or from the host via an endpoint).
*
* \see \ref USB_MIDI_StdDescriptor_InputJack_t for the version of this type with standard element names.
+ *
+ * \note Regardless of CPU architecture, these values should be stored as little endian.
*/
typedef struct
{
uint8_t JackID; /**< ID value of this jack - must be a unique value within the device. */
uint8_t JackStrIndex; /**< Index of a string descriptor describing this descriptor within the device. */
- } USB_MIDI_Descriptor_InputJack_t;
+ } ATTR_PACKED USB_MIDI_Descriptor_InputJack_t;
/** \brief MIDI class-specific Input Jack Descriptor (USB-IF naming conventions).
*
*
* \see \ref USB_MIDI_Descriptor_InputJack_t for the version of this type with non-standard LUFA specific
* element names.
+ *
+ * \note Regardless of CPU architecture, these values should be stored as little endian.
*/
typedef struct
{
uint8_t bJackID; /**< ID value of this jack - must be a unique value within the device. */
uint8_t iJack; /**< Index of a string descriptor describing this descriptor within the device. */
- } USB_MIDI_StdDescriptor_InputJack_t;
+ } ATTR_PACKED USB_MIDI_StdDescriptor_InputJack_t;
/** \brief MIDI class-specific Output Jack Descriptor (LUFA naming conventions).
*
* a physical output jack, or a logical jack (sending output data internally, or to the host via an endpoint).
*
* \see \ref USB_MIDI_StdDescriptor_OutputJack_t for the version of this type with standard element names.
+ *
+ * \note Regardless of CPU architecture, these values should be stored as little endian.
*/
typedef struct
{
uint8_t SourcePinID[1]; /**< Pin number in the input jack of each output pin's source data. */
uint8_t JackStrIndex; /**< Index of a string descriptor describing this descriptor within the device. */
- } USB_MIDI_Descriptor_OutputJack_t;
+ } ATTR_PACKED USB_MIDI_Descriptor_OutputJack_t;
/** \brief MIDI class-specific Output Jack Descriptor (USB-IF naming conventions).
*
*
* \see \ref USB_MIDI_Descriptor_OutputJack_t for the version of this type with non-standard LUFA specific
* element names.
+ *
+ * \note Regardless of CPU architecture, these values should be stored as little endian.
*/
typedef struct
{
uint8_t baSourcePin[1]; /**< Pin number in the input jack of each output pin's source data. */
uint8_t iJack; /**< Index of a string descriptor describing this descriptor within the device. */
- } USB_MIDI_StdDescriptor_OutputJack_t;
+ } ATTR_PACKED USB_MIDI_StdDescriptor_OutputJack_t;
/** \brief Audio class-specific Jack Endpoint Descriptor (LUFA naming conventions).
*
* class-specific extended MIDI endpoint descriptor. See the USB Audio specification for more details.
*
* \see \ref USB_MIDI_StdDescriptor_Jack_Endpoint_t for the version of this type with standard element names.
+ *
+ * \note Regardless of CPU architecture, these values should be stored as little endian.
*/
typedef struct
{
uint8_t TotalEmbeddedJacks; /**< Total number of jacks inside this endpoint. */
uint8_t AssociatedJackID[1]; /**< IDs of each jack inside the endpoint. */
- } USB_MIDI_Descriptor_Jack_Endpoint_t;
+ } ATTR_PACKED USB_MIDI_Descriptor_Jack_Endpoint_t;
/** \brief Audio class-specific Jack Endpoint Descriptor (USB-IF naming conventions).
*
*
* \see \ref USB_MIDI_Descriptor_Jack_Endpoint_t for the version of this type with non-standard LUFA specific
* element names.
+ *
+ * \note Regardless of CPU architecture, these values should be stored as little endian.
*/
typedef struct
{
uint8_t bNumEmbMIDIJack; /**< Total number of jacks inside this endpoint. */
uint8_t bAssocJackID[1]; /**< IDs of each jack inside the endpoint. */
- } USB_MIDI_StdDescriptor_Jack_Endpoint_t;
+ } ATTR_PACKED USB_MIDI_StdDescriptor_Jack_Endpoint_t;
/** \brief MIDI Class Driver Event Packet.
*
* Type define for a USB MIDI event packet, used to encapsulate sent and received MIDI messages from a USB MIDI interface.
+ *
+ * \note Regardless of CPU architecture, these values should be stored as little endian.
*/
typedef struct
{
- unsigned char Command : 4; /**< Upper nibble of the MIDI command being sent or received in the event packet. */
- unsigned char CableNumber : 4; /**< Virtual cable number of the event being sent or received in the given MIDI interface. */
+ unsigned Command : 4; /**< Upper nibble of the MIDI command being sent or received in the event packet. */
+ unsigned CableNumber : 4; /**< Virtual cable number of the event being sent or received in the given MIDI interface. */
- uint8_t Data1; /**< First byte of data in the MIDI event. */
- uint8_t Data2; /**< Second byte of data in the MIDI event. */
- uint8_t Data3; /**< Third byte of data in the MIDI event. */
- } MIDI_EventPacket_t;
+ uint8_t Data1; /**< First byte of data in the MIDI event. */
+ uint8_t Data2; /**< Second byte of data in the MIDI event. */
+ uint8_t Data3; /**< Third byte of data in the MIDI event. */
+ } ATTR_PACKED MIDI_EventPacket_t;
/* Disable C linkage for C++ Compilers: */
#if defined(__cplusplus)
projects / pub / USBasp.git / blobdiff