On Wed, Sep 20, 2017 at 06:45:05PM +0100, Mark Brown wrote:

As previously announced[1] by Takashi our annual Linux audio miniconference will be held this year at the SuSE offices in Prague on 27th October (the week of ELC-E). Thanks again to SuSe for sponsoring this. As with previous years let's pull together an agenda through a mailing list discussion - if people could reply to this mail with any topics they'd like to discuss we can take it from there. Of course if we can sort things out more quickly via the mailing list that's even better!

I'll start things off by mentining the TLV issues that Sakamoto-san was raising - do we have any better ideas to handle larger binary controls than what's currently being done?

[1] http://mailman.alsa-project.org/pipermail/alsa-devel/2017-August/124623.html

Yeah I would second that, I have a patch chain that pulls some bits of Sakamoto-san's previous work and updates the usage in the ADSP driver that I was hoping to send out for comments before the meeting. Don't think I will be able to get it out this week but probably next week. Although that is really just tidying up the current solution rather than looking at other alternatives.

I would also quite like to start some discussions about what might be some sensible first steps towards Lar's plans around rate domains.

Also I might like to have a quick discussion around ways of handling very large register maps. Obviously, the size of the regmaps on our CODECs are starting to annoy more than a few maintainers and it would be good to have a quick discussion on sensible ways to break that down and make it more managable for review. Primarily, I have been thinking about grouping more of the registers with the drivers that are using them and having less of it centralised in large header files and tables within the MFD system.

Thanks, Charles

Hi,

On Sep 21 2017 02:45, Mark Brown wrote:

As previously announced[1] by Takashi our annual Linux audio miniconference will be held this year at the SuSE offices in Prague on 27th October (the week of ELC-E). Thanks again to SuSe for sponsoring this. As with previous years let's pull together an agenda through a mailing list discussion - if people could reply to this mail with any topics they'd like to discuss we can take it from there. Of course if we can sort things out more quickly via the mailing list that's even better!

I'll bring two topics to discuss.

1. A plan to obsolete 'dimen' member in 'struct snd_ctl_elem_info'. 2. Rewrite 'aplay' and support timer-based scheduling

In detail, please refer to my presentation (partly WIP): https://github.com/takaswie/presentations/blob/topic/20171027/20171027/conte...

# Cross fingers not to get heavy jet-lag.

Regards

Takashi Sakamoto

On Wed, 20 Sep 2017 19:45:05 +0200, Mark Brown wrote:

As previously announced[1] by Takashi our annual Linux audio miniconference will be held this year at the SuSE offices in Prague on 27th October (the week of ELC-E). Thanks again to SuSe for sponsoring this. As with previous years let's pull together an agenda through a mailing list discussion - if people could reply to this mail with any topics they'd like to discuss we can take it from there. Of course if we can sort things out more quickly via the mailing list that's even better!

I'll start things off by mentining the TLV issues that Sakamoto-san was raising - do we have any better ideas to handle larger binary controls than what's currently being done?

[1] http://mailman.alsa-project.org/pipermail/alsa-devel/2017-August/124623.html

Thanks Mark for heading up. And sorry for the late reply, it took time to process backlogs after my vacation.

Here are the lists of topics I had in my mind:

- Status-quo; Recap what's been added/changed recently from API/ABI POV

- USB-audio - PCM handling; it's been a known issue regarding the unnecessary latency with USB-audio. Do we need a new operation mode?

- Dynamic device handling, e.g. HDMI/DP; currently we deal with only the card-level disconnection, but it doesn't work well with devices having multiple digital ports. The disconnected state also leads to a problem with PulseAudio.

- Year 2038 problem; PCM API changes RFC were posted recently on alsa-devel, and we have timespec in other APIs (rawmidi and timer), too.

- ASoC hotplug support; recent works / reports from Morimoto-san revealed the lack of hotplug support in ASoC.

- Drop of obsoleted drivers / features; time to think of diet?

- API/ABI documentation; do we have a better shape than before? How can it be improved?

- ALSA user-space stuff releases; maybe we should stick with more strict release schedule?

thanks,

Takashi