08-04-2017, 06:57 PM
(08-04-2017, 09:53 AM)gonzo Wrote: Thank you! Hm so it is still unknown until somebody can test it? The device from preprodution you mean... do you think it was able to power the USB2 ports separately from each other or does gpio2 low mean, that both ports will go down. i was not able to guess is... sorry
Well, it didn't work for me when I tried just then, but I haven't tracked it down through the DTS to see if the sysfs IO is even hooked up properly, or is overridden by something else.
The two USB2 ports don't appear to be independently controlled. They have independent current limiters, but the enable pins are tied together, and then hooked up to GPIO0_A2. So when it does work, it'll be a USB2 ports on or USB2 ports off affair. Because the USB3 port is always on, and you mentioned AC wireless, I'd be plugging that into the USB3 port, and then a HDD into one of the USB2 ports (probably the bottom one, I avoid USBOTG ports when any performance is needed as they tend to be slower unless they can be bypassed properly). Then you'd get the on/off functionality you want... unless you need the second USB2 port for something else that you would want to stay on... once somebody works out why it isn't working atm, of course
