Some users have reported current ALSA Fireworks driver stops packet streaming due to detecting discontinuity.
[alsa-devel] ALSA snd-fireworks Echo AudioFire 2 http://mailman.alsa-project.org/pipermail/alsa-devel/2014-August/080379.html
[alsa-devel] AudioFire4 quirk http://mailman.alsa-project.org/pipermail/alsa-devel/2015-July/095697.html
As long as I investigate, this issue depends on firmware version installed in these devices. While, it's not clear that which version of firmwares for which model has this quirk. At least, firmware version 5.7.0, 5.7.3 and 5.8.0 for AudioFire2/AudioFire4/AudioFirePre8 have this quirk.
This patchset applies a solution for this issue, with my assumption that 'the same firmware binary has the same quirk'. These models, AudioFire8 (since Jul 2009) and Gibson Robot Interface Pack (RIP) series uses the same firmware binary in driver package.
Takashi Sakamoto (2): Revert "ALSA: fireworks: add support for AudioFire2 quirk" ALSA: fireworks/firewire-lib: add support for recent firmware quirk
sound/firewire/amdtp.c | 5 +++-- sound/firewire/amdtp.h | 2 ++ sound/firewire/fireworks/fireworks.c | 10 ++++++++-- sound/firewire/fireworks/fireworks.h | 2 +- sound/firewire/fireworks/fireworks_stream.c | 12 +++++++++--- 5 files changed, 23 insertions(+), 8 deletions(-)