Hi, On mar 7 2016 22:35, Takashi Sakamoto wrote: > Hi, > > This patchset updates my previous RFT, and goes for merging. > [RFT][PATCH 0/4] ALSA: dice: enabled to handle several streams > http://mailman.alsa-project.org/pipermail/alsa-devel/2016-March/105387.html > > For the previous one, Stefan Richter worked as a tester with his devices > (Focusrite Saffire Pro 24 and 40), while current patchset includes changes > related to userspace interface. Therefore, I don't add Tested-by. > > > In previous one, ALSA dice driver uses subdevice for userspace to access > any PCM substreams. On the other hand, the design of PCM subdevice leaves > a bit cumbersome for userspace to handle several subdevices simultaneously > in one process. These PCM substreams on a batch of AMDTP streams and it's > better for ALSA dice driver to enable one process to handle them with > simpler way. > > Based on this concept, this patchset adds PCM character devices, instead of > PCM subdevice. Thus, userspace applications can utilize PCM substreams via > individual PCM character devices. In configuration space of alsa-lib, via > 'hw:0,0' and 'hw:0,1' if available, like: > > $ arecord -l > ... > card 1: Pro26000f5a [Pro26-000f5a], device 0: DICE [Pro26-000f5a] > Subdevices: 1/1 > Subdevice #0: subdevice #0 > card 1: Pro26000f5a [Pro26-000f5a], device 1: DICE [Pro26-000f5a] > Subdevices: 1/1 > Subdevice #0: subdevice #0 > > > For the other parts, there's no code changes. Therefore, Stefan's result > still has meanings. > > Changes: > * Add additional PCM character device instead of PCM subdevice > * Correct string entries to force-pcm > * Improve comments > > Takashi Sakamoto (4): > ALSA: dice: have two sets of isochronous resources/streams > ALSA: dice: handle whole available isochronous streams > ALSA: dice: handle several PCM substreams when any isochronous streams > are available > ALSA: dice: force to add two pcm devices for listed models > > sound/firewire/dice/dice-midi.c | 8 +- > sound/firewire/dice/dice-pcm.c | 147 +++++++++----- > sound/firewire/dice/dice-stream.c | 398 ++++++++++++++++++++++++-------------- > sound/firewire/dice/dice.c | 41 ++++ > sound/firewire/dice/dice.h | 33 +++- > 5 files changed, 424 insertions(+), 203 deletions(-) I strongly request to merge this patchset to linux-next for 4.6 kernel. For already supported models, this patchset basically adds no changes except for actual codes. Therefore few possibilities of regressions. Regards Takashi Sakamoto _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
