On Thu, 12 Aug 2021 04:28:39 +0200, Takashi Sakamoto wrote:
OXFW 971 has no function to use the value in syt field of received isochronous packet for playback timing generation. In kernel prepatch for v5.14, ALSA OXFW driver got change to send NO_INFO value in the field instead of actual timing value. The change brings Apogee Duet FireWire to generate no playback sound, while output meter moves.
As long as I investigate, _any_ value in the syt field takes the device to generate sound. It's reasonable to think that the device just ignores data blocks in packet with NO_INFO value in its syt field for audio data processing.
This commit adds a new flag for the quirk to fix regression.
Fixes: 029ffc429440 ("ALSA: oxfw: perform sequence replay for media clock recovery") Cc: stable@vger.kernel.org Signed-off-by: Takashi Sakamoto o-takashi@sakamocchi.jp
Applied now. Thanks.
Takashi