Messages in this thread | | | Subject | Re: [alsa-devel] [RFC/RFT PATCH] ASoC: topology: Improve backwards compatibility with v4 topology files | From | Pierre-Louis Bossart <> | Date | Wed, 23 May 2018 08:42:59 -0500 |
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On 5/23/18 3:24 AM, Mark Brown wrote: > On Tue, May 22, 2018 at 02:59:35PM -0500, Pierre-Louis Bossart wrote: > >> I am also not convinced by the notion that maintaining topology files is >> only a userspace/distro issue. This would mean some distros will have access >> to the required topology files, possibly enabling DSP processing >> capabilities, but other will not and will not be able to enable even basic >> playback/capture. Just like we have a basic firmware with limited >> functionality in /lib/firmware/intel, it would make sense to require a basic >> .conf file in alsa-lib for every upstream machine driver - along possibly >> with a basic UCM file so that audio works no matter what distro people use. > > The point here is that people should be able to update their kernel > without updating their userspace so things have to work with whatever > they have right now - anything that relies on shipping new firmware or > configuration files to userspace is a problem.
Agree.
My point was a bit different: distributions like Gallium start without the relevant topology files and UCM settings, and we should have a reference to quickly enable audio without having to borrow and modify files from another distro. I faced this issue when I worked with the Gallium folks to enable audio on Rambi and Cyan Chromebooks and ended-up creating this reference myself.
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