Volumio 3 Buster Beta for RPi

Hello,

I have a Raspberry Pi 4 and Volumio 3.0.51
A Dac Amp Suptronics X450

Actually i manage to get it working listening internet radio, it works with Generic_i2s_dac and hifiberry_dac

I have this error in dmesg:
snd-rpi-simple soc:sound: ASoC: failed to init link HifiBerry DAC: -517
[ 15.671780] snd-rpi-simple soc:sound: ASoC: failed to init link HifiBerry DAC: -517
[ 15.703929] snd-rpi-simple soc:sound: pcm5102a-hifi <-> fe203000.i2s mapping ok
[ 15.824878] cfg80211: Loaded X.509 cert ‘sforshee: 00b28ddf47aef9cea7’
[ 16.005820] brcmfmac: F1 signature read @0x18000000=0x15264345
[ 16.014814] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43455-sdio for chip BCM4345/6
[ 16.018373] usbcore: registered new interface driver brcmfmac
[ 16.131907] brcmfmac mmc1:0001:1: Direct firmware load for brcm/brcmfmac43455-sdio.raspberrypi,4-model-b.txt failed with error -2
[ 16.444869] brcmfmac: brcmf_fw_alloc_request: using brcm/brcmfmac43455-sdio for chip BCM4345/6
[ 16.482561] brcmfmac: brcmf_c_preinit_dcmds: Firmware: BCM4345/6 wl0: Jan 4 2021 19:56:29 version 7.45.229 (617f1f5 CY) FWID 01-2dbd9d2e
[ 17.581496] 8021q: 802.1Q VLAN Support v1.8
[ 17.676455] brcmfmac: brcmf_cfg80211_set_power_mgmt: power save disabled

It seems that the second error is relative to wifi firmware, and i don’t understand the first error relative to sound
Should i have to test with different settins in i2S dac

The mixer is software
and the volume is apparently lower with hifiberry_ dac than with generic_i2s_dac

Is there a person who can comment or have a hint concerning suptronics x450 ?

Thanks in advance for any input or question