hello again
at the moment, i can't determine if the set option will be ignored or it simply doesn't work ( i know, it may sound a bit funny, but in case of ignored, i see the chance of correcting a mistake, that i may have done, but in case of not working it's more probable that i cant' do anything against that ...)
the actual behavior after setting this option is: dsd is being played as it is put in, but the pcm material also with its original sample rate properties - so you see, without having any more detailed log output etc. i can't decide if the player plays like initially not using any additional setting, or if in principle the allowed_formats setting partially works, but the implicite upsampling to 352800:24:2 only doesn't work
currently used mpd.conf ->
audio_output {
name "Project RS USB Audio 2.0"
type "alsa"
device "hw:1,0"
dsd_usb "yes"
dop "yes"
auto_resample "yes"
auto_format "yes"
allowed_formats "352800:24:2 dsd64:=dop dsd128:=dop dsd256:=dop dsd512:=dop"
}