IQaudIO dac+ not recognized

Hello.
I am using the IQaudIO dac+ on Raspberry Pi Model B+ (2014), and Volumio 2.587 (June 11, 2019).
When I set I2S DAC to “On” and choose DAC Model “IQaudIO Dac Plus” in General Playback Options, there is no sound.
Running aplay -l, I see the following:

**** List of PLAYBACK Hardware Devices **** card 0: ALSA [bcm2835 ALSA], device 0: bcm2835 ALSA [bcm2835 ALSA] Subdevices: 7/7 Subdevice #0: subdevice #0 Subdevice #1: subdevice #1 Subdevice #2: subdevice #2 Subdevice #3: subdevice #3 Subdevice #4: subdevice #4 Subdevice #5: subdevice #5 Subdevice #6: subdevice #6 card 0: ALSA [bcm2835 ALSA], device 1: bcm2835 ALSA [bcm2835 IEC958/HDMI] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: sndrpihifiberry [snd_rpi_hifiberry_dac], device 0: HifiBerry DAC HiFi pcm5102a-hifi-0 [] Subdevices: 1/1 Subdevice #0: subdevice #0

It seems the DAC is falsely recognized as HiFiBerry.

Any help would be greatly appreciated.