On Tue, Jul 22, 2025 at 3:50 PM Liu Ying <victor....@nxp.com> wrote: > > Hi Shengjiu, > > On 07/21/2025, Shengjiu Wang wrote: > > On Fri, Jul 18, 2025 at 7:51 PM Alexander Stein > > <alexander.st...@ew.tq-group.com> wrote: > > [...] > > >> Am Freitag, 18. Juli 2025, 12:11:48 CEST schrieb Shengjiu Wang: > > [...] > > >>> + /* IEC60958 format */ > >>> + val = 31 << FIELD_CTRL_P_SEL_SHIFT; > >>> + val |= 30 << FIELD_CTRL_C_SEL_SHIFT; > >>> + val |= 29 << FIELD_CTRL_U_SEL_SHIFT; > >>> + val |= 28 << FIELD_CTRL_V_SEL_SHIFT; > >>> + val |= 4 << FIELD_CTRL_D_SEL_SHIFT; > >>> + val |= 0 << FIELD_CTRL_PRE_SEL_SHIFT; > > [...] > > >> But where do these numbers come from? I can see that downstream kernel > >> sets these bits depending on audio config being passed. > > > > These numbers are defined in standard IEC958 spec. > > Can these be defined by macros, even in a certain common header file, > include/sound/asoundef.h?
yes, then will include ALSA maintainer for the change. > > -- > Regards, > Liu Ying
