```
pcm0:play:dsp0.p0[pcm0:virtual_play:dsp0.vp0]: spd 8000, fmt 0x00100008, flags 0x10000000, 0x00000000
interrupts 0, underruns 0, feed 0, ready 0 [b:0/0/0|bs:0/0/0]
channel flags=0x10000000<VIRTUAL>
{userland} -> feeder_root(0x00000000) -> {pcm0:play:dsp0.p0}
```