• Takashi Sakamoto's avatar
    ALSA: firewire-lib: Add some AV/C general commands · 1017abed
    Takashi Sakamoto authored
    This commit adds three commands, which may be used by some firewire device
    drivers. These commands are defined in 'AV/C Digital Interface Command Set
    General Specification Version 4.2 (2004006, 1394TA)'.
    1. PLUG INFO command (clause 10.1)
    2. INPUT PLUG SIGNAL FORMAT command (clause 10.10)
    3. OUTPUT PLUG SIGNAL FORMAT command (clause 10.11)
    By the command 1, the drivers can get the number of plugs for AV/C unit or
    By the command 2 and 3, the drivers can get/set sampling frequency.
    The 'firewire-speakers' already uses INPUT PLUG SIGNAL FORMAT command to set
    sampling rate. So this commit also affects the driver.
    Signed-off-by: default avatarTakashi Sakamoto <o-takashi@sakamocchi.jp>
    Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
fcp.h 1.01 KB