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SAM: Add Serial_::availableForWrite #5018

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Merged
merged 1 commit into from
Jul 7, 2016
Merged

SAM: Add Serial_::availableForWrite #5018

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7 changes: 7 additions & 0 deletions hardware/arduino/sam/cores/arduino/USB/CDC.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -214,6 +214,13 @@ int Serial_::available(void)
return (unsigned int)(CDC_SERIAL_BUFFER_SIZE + buffer->head - buffer->tail) % CDC_SERIAL_BUFFER_SIZE;
}

int Serial_::availableForWrite(void)
{
// return the number of bytes left in the current bank,
// always EP size - 1, because bank is flushed on every write
return (EPX_SIZE - 1);
}

int Serial_::peek(void)
{
ring_buffer *buffer = &cdc_rx_buffer;
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1 change: 1 addition & 0 deletions hardware/arduino/sam/cores/arduino/USB/USBAPI.h
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Expand Up @@ -54,6 +54,7 @@ class Serial_ : public Stream
void end(void);

virtual int available(void);
virtual int availableForWrite(void);
virtual void accept(void);
virtual int peek(void);
virtual int read(void);
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