• Takashi Sakamoto's avatar
    ALSA: firewire-motu: add tracepoints for messages for unique protocol · c6b0b9e6
    Takashi Sakamoto authored
    MOTU units transfer/receive messages in each data block of their
    isochronous packet payload. A part of content in the message is cleard for
    MIDI message transmission, while the rest is unknown yet. Additional
    features are required to assist users and developers to reveal the
    details.
    
    This commit adds tracepoints for the purpose. The tracepoints are designed
    for MOTU's protocol version 2 and 3 (Protocol version 1 is not upstreamed
    yet). In the tracepoints, events are probed to gather first two 24 bit
    data chunks of each data block. The chunks are formatted into elements
    of 64 bit array with padding in MSB.
    Signed-off-by: default avatarTakashi Sakamoto <o-takashi@sakamocchi.jp>
    Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
    c6b0b9e6
amdtp-motu.c 10.2 KB