Topping D10s DAC auto standby?

[Falco]

It seems not to be possible due to RPi hardware limitations

Yes, I see, all ports are wired together...

Then I think it should work on all Pi models before model 4 with

Code:

sudo uhubctl -l 1-1 -p 2 -a 0/1

and on the model 4 with just

Code:

sudo uhubctl -l 1-1 -a 0/1

What do you think?

Yes I agree, with the remark that on the RPi4 you should connect your usb DAC to one of the black USB2 ports