• Eldad Zack's avatar
    ALSA: usb-audio: use sender stride for implicit feedback · 28acb120
    Eldad Zack authored
    For implicit feedback endpoints, the number of bytes for each packet
    is matched by the corresponding synchronizing endpoint.
    The size is calculated by taking the actual size and dividing it by
    the stride - currently by the endpoint's stride, but we should use the
    synchronization source's stride.
    This is evident when the number of channels differ between the
    synchronization source and the implicitly fed-back endpoint, as with
    M-Audio Fast Track C400 - the synchronization source (capture)
    has 4 channels, while the implicit feedback mode endpoint has 6.
    Signed-off-by: default avatarEldad Zack <eldad@fogrefinery.com>
    Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>