> Modified Files: > src/sys/dev: audio.c > > Log Message: > Expose the audio_info structure of vchan zero(0) the mix ring to allow > setting the hardware gain and balance via audioctl(1) using the -p 0 > switch. > > It is not possible to influence the hardware gain/blance from the > audio_info structure of vchans 1 onwards. It is now possible to return > the audio mixers audio format from the audio_info structure of vchan 0 to > ease applications configuring for mmapped play back. > > This is conformant to the audio specification posted on tech-kern see: > "NetBSD Audio Specification 2018" > or audio.7 manual page to be added in a follow up commit. > > > To generate a diff of this commit: > cvs rdiff -u -r1.453 -r1.454 src/sys/dev/audio.c
! if (SPECIFIED(r->gain)) { ! if (!sc->sc_usemixer || vc == &sc->sc_mixring) { ! au_get_gain(sc, &sc->sc_outports, &gain, &balance); ! error = au_set_gain(sc, &sc->sc_outports, r->gain, balance); i think this should be sc_inports. i wonder if the check of vc vs mixring should be put in an macro or function. thanks. .mrg.