On Fri, 16 Apr 2021 10:47:32 +0200, Jaroslav Kysela wrote: > > Dne 16. 04. 21 v 10:12 Takashi Iwai napsal(a): > > Lenovo Ideapad S740 requires quite a few COEF setups to make its > > speakers working. The verb table was provided from Ryan Prescott as > > the result of investigation via qemu: > > https://github.com/ryanprescott/realtek-verb-tools/wiki/How-to-sniff-verbs-from-a-Windows-sound-driver > > [Cc: to Kailang / Realtek] > > I believe that this sequence contains I2C writes to amplifier chips. It would > be really helpful, if Realtek can provide more information for the I2C master > interface for their codecs (describe basic I2C I/O). Indeed. Already a few drivers need the initialization of the chip behind HD-audio, and it'd be good if we have some standard interface for that. thanks, Takashi