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Added return values to the CDC and MIDI class driver transmit functions.

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This commit is contained in:
Dean Camera 2009-08-16 14:30:46 +00:00
parent 5d4478b3b4
commit 09bedd6555
6 changed files with 44 additions and 25 deletions
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12
LUFA/Drivers/USB/Class/Device/CDC.h
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@ -156,16 +156,20 @@
* \param[in,out] CDCInterfaceInfo Pointer to a structure containing a CDC Class configuration and state.
* \param[in] Data Pointer to the string to send to the host
* \param[in] Length Size in bytes of the string to send to the host
*
* \return A value from the \ref Endpoint_Stream_RW_ErrorCodes_t enum
*/
void CDC_Device_SendString(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo, char* const Data, const uint16_t Length);
uint8_t CDC_Device_SendString(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo, char* const Data, const uint16_t Length);
/** Sends a given byte to the attached USB host, if connected. If a host is not connected when the function is called, the
* byte is discarded.
*
* \param[in,out] CDCInterfaceInfo Pointer to a structure containing a CDC Class configuration and state.
* \param[in] Data Byte of data to send to the host
*
* \return A value from the \ref Endpoint_WaitUntilReady_ErrorCodes_t enum
*/
void CDC_Device_SendByte(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo, const uint8_t Data);
uint8_t CDC_Device_SendByte(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo, const uint8_t Data);
/** Determines the number of bytes received by the CDC interface from the host, waiting to be read.
*
@ -188,8 +192,10 @@
/** Flushes any data waiting to be sent, ensuring that the send buffer is cleared.
*
* \param[in,out] CDCInterfaceInfo Pointer to a structure containing a CDC Class configuration and state.
*
* \return A value from the \ref Endpoint_WaitUntilReady_ErrorCodes_t enum
*/
void CDC_Device_Flush(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo);
uint8_t CDC_Device_Flush(USB_ClassInfo_CDC_Device_t* const CDCInterfaceInfo);
/** Sends a Serial Control Line State Change notification to the host. This should be called when the virtual serial
* control lines (DCD, DSR, etc.) have changed states, or to give BREAK notfications to the host. Line states persist