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Add return codes to the CDC Host Class driver String/Byte transmission functions.

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This commit is contained in:
Dean Camera 2009-08-31 13:58:03 +00:00
parent cf2776531c
commit dac7b046fd
6 changed files with 26 additions and 13 deletions
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16
LUFA/Drivers/USB/Class/Host/CDC.c
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@ -256,21 +256,27 @@ uint8_t CDC_Host_SendControlLineStateChange(USB_ClassInfo_CDC_Host_t* CDCInterfa
return USB_Host_SendControlRequest(NULL);
}
void CDC_Host_SendString(USB_ClassInfo_CDC_Host_t* CDCInterfaceInfo, char* Data, uint16_t Length)
uint8_t CDC_Host_SendString(USB_ClassInfo_CDC_Host_t* CDCInterfaceInfo, char* Data, uint16_t Length)
{
if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.Active))
return;
uint8_t ErrorCode;
Pipe_SelectPipe(CDCInterfaceInfo->Config.DataOUTPipeNumber);
Pipe_Unfreeze();
Pipe_Write_Stream_LE(Data, Length, NO_STREAM_CALLBACK);
ErrorCode = Pipe_Write_Stream_LE(Data, Length, NO_STREAM_CALLBACK);
Pipe_Freeze();
return ErrorCode;
}
void CDC_Host_SendByte(USB_ClassInfo_CDC_Host_t* CDCInterfaceInfo, uint8_t Data)
uint8_t CDC_Host_SendByte(USB_ClassInfo_CDC_Host_t* CDCInterfaceInfo, uint8_t Data)
{
if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.Active))
return;
uint8_t ErrorCode = PIPE_READYWAIT_NoError;
Pipe_SelectPipe(CDCInterfaceInfo->Config.DataOUTPipeNumber);
Pipe_Unfreeze();
@ -278,11 +284,13 @@ void CDC_Host_SendByte(USB_ClassInfo_CDC_Host_t* CDCInterfaceInfo, uint8_t Data)
if (!(Pipe_IsReadWriteAllowed()))
{
Pipe_ClearOUT();
Pipe_WaitUntilReady();
ErrorCode = Pipe_WaitUntilReady();
}
Pipe_Write_Byte(Data);
Pipe_Freeze();
return ErrorCode;
}
uint16_t CDC_Host_BytesReceived(USB_ClassInfo_CDC_Host_t* CDCInterfaceInfo)