You could adapt the driver according to your needs. As far as I understand you would need to adapt the classes DigitalIn and/or DigitalOut, see https://github.com/petrockblog/ControlBlockService2/tree/master/src/controlblock/hal.

@cyperghost
I can confirm that. My file looks like this:

pcm.hifiberry {
type softvol
slave.pcm "plughw:0"
control.name "PCM"
control.card 0
}

pcm.!default {
type plug
slave.pcm "hifiberry"
}

ctl.!default {
type hw
card 0
}

So...
Today I installed the littel "I2S+Amp" device (called Adafruit MAX98357 I2S) in my latest build. The static sound is completly gone! It's crystal clear sound. I got two more wires to solder to my RPi. GPIO18 is used as usal, GPIO19 and GPIO21 are added.
The power is used from the old PAM module, no need to power it from the Pi by wiring PIN1 and a ground Pin.

Definitly worth the money :)

Popeye Pie Nr °2 Advanced Design Dual view (HDMI, SDTV) I2S Soundmodul Integrated 4 port USB Hub Powersaving by switchable videosignal via software Operates with 5V Wifi and BT with dongel Raspberry Pi Zero (not a W) build

--- is finished ;)

.... more to come ;)