unable to switch usb3 ports on

[cglhu]

Hi all,

I have a problem with the usb3 ports. I run an arch linux installation on a rock64. I followed the instructions in this thread 
https://forum.pine64.org/showthread.php?tid=5001
and that helped me to get usb2 ports working. But I can't do the same thing for the usb3 ports (toggle the right gpio to switch the regulator for usb3 on). Mostly I don't know, which gpio port belongs to the usb3 regulator.

Maybe someone can give me a hint.

Thanks in advance and

Best regards,
Christoph

ROCK64 schematic page 15.

http://files.pine64.org/doc/rock64/ROCK6...171019.pdf

Hi tllim,

Thanks for your hint, but I can't read that. I tried something similar to usb3 that Mark Harris did for usb2 (thanks a lot Mark!):

Code:

#!/bin/bash
# rock64_usb_power_service.sh
#
# Mark H. Harris
# v0.1b
#
#
PWRON=0
PWROFF=1
GP=2
GPOUT="out"
GPPATH="/sys/class/gpio"
GPVALUE="value"
GPMODE="direction"

## remove gpio if already exported
if [ -d $GPPATH/gpio$GP ]
then
  echo $GP > $GPPATH/unexport
  sleep 2
fi

# export the gpio, and set if ready
echo $GP > $GPPATH/export
sleep 2
if [ -e $GPPATH/gpio$GP/$GPMODE ]
then
  echo $GPOUT > $GPPATH/gpio$GP/$GPMODE
  sleep 2
  echo $PWRON > $GPPATH/gpio$GP/$GPVALUE
fi

But I don't know, which gpio port to toggle for usb3 power.

Best regards,
Christoph