• Takashi Sakamoto's avatar
    ALSA: firewire-lib: Add support for duplex streams synchronization in blocking mode · 7b3b0d85
    Takashi Sakamoto authored
    Generally, the devices can synchronize to handle 'presentation timestamp'
    in CIP packets. This commit adds functionality to pick up this timestamp from
    in-packets transmitted by the device, then use it for out packets.
    
    In current implementation, this module generated the timestamp by itself. This
    is 'SYT Match' mode. Then drivers with this module acts as synchronization
    master. This commit allows this module to act as synchronization slave.
    
    This commit restricts this mechanism is only available in blocking mode because
    handling the timestamp in non-blocking mode is more complicated than in
    blocking mode.
    Signed-off-by: default avatarTakashi Sakamoto <o-takashi@sakamocchi.jp>
    Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
    7b3b0d85
amdtp.h 6.81 KB