On 19-12-18, 14:21, Takashi Iwai wrote: > On Wed, 19 Dec 2018 09:46:37 +0100, > Daniel Baluta wrote: > > > > Hello Pierre, Liam, Mark, > > > > What is the standard ALSA way of loading tables of coefficients for > > various audio IPs? > > > > We have IPs like PDM or ASRC which need large table of coefficients > > depending on configuration. This tables can reach up to 120K in size. > > > > Creating this kind of tables as arrays of integers in kernel doesn't seem > > to be a common used solution and we will end up with large files that > > contains only numbers. > > > > Another approach that we are thinking of is to create and compile this > > tables in userspace as raw binary files and then loading them in kernel > > using the firmware interface. > > > > Would this be an acceptable approach? > > This is a topic we discuss every year in the conference ;) Yeah and a deprecated solution exists. Daniel you *can* use TLV_BYTES which allow you to load any size bytes into kernel using a kcontrol. Again, it is deprecated and we are supposed to come with a cooler solution, so you would need to move then as well -- ~Vinod _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
