snd_rawmidi_transmit_peek - copy data from the internal buffer
2. SYNOPSIS ▲
int snd_rawmidi_transmit_peek(struct snd_rawmidi_substream * substream , unsigned char * buffer , int count );
3. ARGUMENTS ▲
the rawmidi substream
the buffer pointer
data size to transfer
4. DESCRIPTION ▲
Copies data from the internal output buffer to the given buffer.
Call this in the interrupt handler when the midi output is ready, and call snd_rawmidi_transmit_ack after the transmission is finished.
5. RETURN ▲
The size of copied data, or a negative error code on failure.
6. COPYRIGHT ▲