On 30 June 2016 at 22:30, Ondřej Jirman <m...@xff.cz> wrote: > On 30.6.2016 20:21, Michal Suchanek wrote: >> On 30 June 2016 at 20:06, Michal Suchanek <hramr...@gmail.com> wrote: >>> Hello, >>> >>> On 30 June 2016 at 16:44, Ondřej Jirman <m...@xff.cz> wrote: >>>> Hi, >>>> >>>> hopefuly, it was the NPE that I fixed. It was specifically in the H3 usb >>>> phy code path for phy0. So I believe it was untested, >>>> because I didn't find any dts file that would use phy0. >>>> >>> >>> This WorksForMe(TM). >> >> There is still small problem left. When I boot with the USB cable >> connected I have to disconnect and reconnect the cable to get the >> gadget working. >> > > Good to know, I'll test this case. It will probably be something around > the iddet handling during phy0 initialization, which leads to the > connected cable being treated as OTG, which would turn the usb port into > host mode. You can verify that by looking into sysfs where there's an > attribute that tells the current mode (peripheral / host). I don't > rember where exactly it could be found. >
This is interesting. The USB gadget works (from the start without reconnecting) with one PC + hub and fails with other PC + hub. Both pretty much 100% Ironically the broken hub provides sound voltage above 5.1V and the working one should give about 4.75V given its 0.2V drop from the board power level. Thanks Michal -- 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.
