I get the same output: axiom /home/dean # hda-verb /dev/snd/hwC0D0 0x5a SET_COEF_INDEX 0x00 nid = 0x5a, verb = 0x500, param = 0x0 value = 0x0 axiom /home/dean # hda-verb /dev/snd/hwC0D0 0x5a GET_PROC_COEF 0x00 nid = 0x5a, verb = 0xc00, param = 0x0 value = 0x0 On Fri, 25 Oct 2024 at 02:16, Takashi Iwai <tiwai@xxxxxxx> wrote: > > On Fri, 25 Oct 2024 03:22:38 +0200, > Dean Matthew Menezes wrote: > > > > I get the same values for both > > > > axiom /home/dean/linux-6.11.3/sound/pci/hda # hda-verb /dev/snd/hwC0D0 > > 0x5a SET_COEF_INDEX 0x00 > > nid = 0x5a, verb = 0x500, param = 0x0 > > value = 0x0 > > Here OK, but... > > > axiom /home/dean/linux-6.11.3/sound/pci/hda # hda-verb /dev/snd/hwC0D0 > > 0x5a SET_PROC_COEF 0x00 > > ... here run GET_PROC_COEF instead, i.e. to read the value. > > > thanks, > > Takashi