*
* \param[in] freq Required audio sampling frequency in HZ
*/
- #define AUDIO_SAMPLE_FREQ(freq) {((uint32_t)freq & 0x00FFFF), (((uint32_t)freq >> 16) & 0x0000FF)}
+ #define AUDIO_SAMPLE_FREQ(freq) {.Byte1 = (freq & 0x0000FF), .Byte2 = ((freq >> 8) & 0xFF), .Byte3 = ((freq >> 16) & 0xFF)}
/** Mask for the attributes parameter of an Audio class-specific Endpoint descriptor, indicating that the endpoint
* accepts only filled endpoint packets of audio samples.
*/
uint8_t TerminalID; /**< ID value of this terminal unit - must be a unique value within the device. */
- uint16_t TerminalType; /**< Type of terminal, a TERMINAL_* mask. */
+ uint16_t TerminalType; /**< Type of terminal, a \c TERMINAL_* mask. */
uint8_t AssociatedOutputTerminal; /**< ID of associated output terminal, for physically grouped terminals
* such as the speaker and microphone of a phone handset.
*/
uint8_t TotalChannels; /**< Total number of separate audio channels within this interface (right, left, etc.) */
- uint16_t ChannelConfig; /**< CHANNEL_* masks indicating what channel layout is supported by this terminal. */
+ uint16_t ChannelConfig; /**< \c CHANNEL_* masks indicating what channel layout is supported by this terminal. */
uint8_t ChannelStrIndex; /**< Index of a string descriptor describing this channel within the device. */
uint8_t TerminalStrIndex; /**< Index of a string descriptor describing this descriptor within the device. */
* must be \ref AUDIO_DSUBTYPE_CSInterface_InputTerminal.
*/
uint8_t bTerminalID; /**< ID value of this terminal unit - must be a unique value within the device. */
- uint16_t wTerminalType; /**< Type of terminal, a TERMINAL_* mask. */
+ uint16_t wTerminalType; /**< Type of terminal, a \c TERMINAL_* mask. */
uint8_t bAssocTerminal; /**< ID of associated output terminal, for physically grouped terminals
* such as the speaker and microphone of a phone handset.
*/
uint8_t bNrChannels; /**< Total number of separate audio channels within this interface (right, left, etc.) */
- uint16_t wChannelConfig; /**< CHANNEL_* masks indicating what channel layout is supported by this terminal. */
+ uint16_t wChannelConfig; /**< \c CHANNEL_* masks indicating what channel layout is supported by this terminal. */
uint8_t iChannelNames; /**< Index of a string descriptor describing this channel within the device. */
uint8_t iTerminal; /**< Index of a string descriptor describing this descriptor within the device. */
*/
uint8_t TerminalID; /**< ID value of this terminal unit - must be a unique value within the device. */
- uint16_t TerminalType; /**< Type of terminal, a TERMINAL_* mask. */
+ uint16_t TerminalType; /**< Type of terminal, a \c TERMINAL_* mask. */
uint8_t AssociatedInputTerminal; /**< ID of associated input terminal, for physically grouped terminals
* such as the speaker and microphone of a phone handset.
*/
* a value from the \ref Audio_CSInterface_AC_SubTypes_t enum.
*/
uint8_t bTerminalID; /**< ID value of this terminal unit - must be a unique value within the device. */
- uint16_t wTerminalType; /**< Type of terminal, a TERMINAL_* mask. */
+ uint16_t wTerminalType; /**< Type of terminal, a \c TERMINAL_* mask. */
uint8_t bAssocTerminal; /**< ID of associated input terminal, for physically grouped terminals
* such as the speaker and microphone of a phone handset.
*/
uint8_t UnitID; /**< ID value of this feature unit - must be a unique value within the device. */
uint8_t SourceID; /**< Source ID value of the audio source input into this feature unit. */
- uint8_t ControlSize; /**< Size of each element in the ChanelControlls array. */
+ uint8_t ControlSize; /**< Size of each element in the \c ChanelControlls array. */
uint8_t ChannelControls[3]; /**< Feature masks for the control channel, and each separate audio channel. */
uint8_t FeatureUnitStrIndex; /**< Index of a string descriptor describing this descriptor within the device. */
uint8_t bUnitID; /**< ID value of this feature unit - must be a unique value within the device. */
uint8_t bSourceID; /**< Source ID value of the audio source input into this feature unit. */
- uint8_t bControlSize; /**< Size of each element in the ChanelControlls array. */
+ uint8_t bControlSize; /**< Size of each element in the \c ChanelControlls array. */
uint8_t bmaControls[3]; /**< Feature masks for the control channel, and each separate audio channel. */
uint8_t iFeature; /**< Index of a string descriptor describing this descriptor within the device. */
*/
typedef struct
{
- uint16_t LowWord; /**< Low 16 bits of the 24-bit value. */
- uint8_t HighByte; /**< Upper 8 bits of the 24-bit value. */
+ uint8_t Byte1; /**< Lowest 8 bits of the 24-bit value. */
+ uint8_t Byte2; /**< Middle 8 bits of the 24-bit value. */
+ uint8_t Byte3; /**< Upper 8 bits of the 24-bit value. */
} USB_Audio_SampleFreq_t;
/** \brief Audio class-specific Format Descriptor (LUFA naming conventions).
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.
+ uint8_t bmAttributes; /**< Endpoint attributes, comprised of a mask of the endpoint type (\c EP_TYPE_*)
+ * and attributes (\c 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.
* a value from the \ref Audio_CSEndpoint_SubTypes_t enum.
*/
- uint8_t Attributes; /**< Audio class-specific endpoint attributes, such as ACCEPTS_SMALL_PACKETS. */
+ uint8_t Attributes; /**< Audio class-specific endpoint attributes, such as \ref AUDIO_EP_FULL_PACKETS_ONLY. */
uint8_t LockDelayUnits; /**< Units used for the LockDelay field, see Audio class specification. */
uint16_t LockDelay; /**< Time required to internally lock endpoint's internal clock recovery circuitry. */
* a value from the \ref Audio_CSEndpoint_SubTypes_t enum.
*/
- uint8_t bmAttributes; /**< Audio class-specific endpoint attributes, such as ACCEPTS_SMALL_PACKETS. */
+ uint8_t bmAttributes; /**< Audio class-specific endpoint attributes, such as \ref AUDIO_EP_FULL_PACKETS_ONLY. */
uint8_t bLockDelayUnits; /**< Units used for the LockDelay field, see Audio class specification. */
uint16_t wLockDelay; /**< Time required to internally lock endpoint's internal clock recovery circuitry. */
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