Topping D10s DAC auto standby?

[lelobster]

Thank you all for bringing information about this, this below worked for me on a raspberry 5 / topping dac.

I'm not sure if it suspends my other devices, an SSD and a FLIRC usb, probably, but so far it's not been an issue.

This is added in /etc/rc.local for a 15 minutes delay before port being suspended.

Code:

echo 900000 | sudo tee /sys/bus/usb/devices/1-2/power/autosuspend_delay_ms
echo auto | sudo tee /sys/bus/usb/devices/1-2/power/control

Thanks for this method, world that work for a RPI 4 as well?
And suspending turns your topping off? And it counts back to life when you start playing?
Because that procedure would be more convenient then mine...

The E70 DAC goes to standby a few seconds after and it goes live if I start playing, pretty convenient yes, but I don't know about rpi 4.

The DAC has an autostandby option that I turned on, I think I remember that D90 or D90S had that autostandby by default.

Maybe this can help about rpi 4: https://github.com/mvp/uhubctl#linux-usb-permissions