• Ruslan Bilovol's avatar
    ALSA: usb: initial USB Audio Device Class 3.0 support · 9a2fe9b8
    Ruslan Bilovol authored
    Recently released USB Audio Class 3.0 specification
    introduces many significant changes comparing to
    previous versions, like
     - new Power Domains, support for LPM/L1
     - new Cluster descriptor
     - changed layout of all class-specific descriptors
     - new High Capability descriptors
     - New class-specific String descriptors
     - new and removed units
     - additional sources for interrupts
     - removed Type II Audio Data Formats
     - ... and many other things (check spec)
    
    It also provides backward compatibility through
    multiple configurations, as well as requires
    mandatory support for BADD (Basic Audio Device
    Definition) on each ADC3.0 compliant device
    
    This patch adds initial support of UAC3 specification
    that is enough for Generic I/O Profile (BAOF, BAIF)
    device support from BADD document.
    Signed-off-by: default avatarRuslan Bilovol <ruslan.bilovol@gmail.com>
    Reviewed-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
    Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
    9a2fe9b8
format.c 15.5 KB