Hi, On 22/03/18 10:45, Martin Lucina wrote: > Hi, > > On Tuesday, 20.03.2018 at 11:10, Andre Przywara wrote: >>> Tried a flash drive in the standard-size USB with these changes, nothing >>> shows up. Is there an easy way of testing the micro-USB (OTG?) port? >> >> Can you try to measure if there is 5V on the outer pins of the USB socket? >> >> For testing I would use an USB-OTG adaptor, that kind of dongle like >> cable with a micro-B plug on one end and an USB A socket on the other >> (used with tablets and phones to connect normal USB peripherals). Then >> use a normal flash drive. This avoids you setting up the USB OTG/device >> stuff in Linux. You might want to use: dr_mode = "host"; in the DT in >> this case. > > Ok, I just measured both ports (via a cannibalised USB cable + OTG for the > micro-USB) and there's no power on either of them. Cross-checked the > measurement setup against an old Thinkpad to be sure.
Thanks, that's very useful. Are there any messages about a regulator not working or something? I think at least the PG9 GPIO thing should work. I need to look up what's the exact story about the N_VBUSEN pin for the other socket and whether we need something in the AXP Linux driver to support this or not. Cheers, Andre. -- You received this message because you are subscribed to the Google Groups "linux-sunxi" group. To unsubscribe from this group and stop receiving emails from it, send an email to linux-sunxi+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
