On Fri, 2023-12-15 at 12:55 +0000, Mark Brown wrote: > On Fri, Dec 15, 2023 at 02:17:01AM +0100, Gergo Koteles wrote: > > On Thu, 2023-12-07 at 22:39 +0000, Mark Brown wrote: > > > On Thu, Dec 07, 2023 at 10:12:13PM +0100, Gergo Koteles wrote: > > > > On Thu, 2023-12-07 at 20:36 +0000, Mark Brown wrote: > > > > > > The code creates the impression that writing to one tas2781 writes to > > > > > all of them, is that not the case? > > > > > Yes, the tasdevice_* functions, but the regcache_sync doesn't know > > > > this. > > > > So this syncing is done in software not hardware? My understanding was > > > that this was a hardware thing. > > > If you mean that the amplifier does not know that there are several > > programs or configurations or profiles, but only runs the current one, > > yes. > > No, I mean that the amplifiers don't talk to each other at a hardware > level and the grouping is all in software. No, they don't talk to each other. But they have a global i2c address to speed up configuration, but the module doesn't use it yet.
