So it looks like there are three lines: USB0-IDDET -- input, detects an OTG cable USB0-VBUSDET - input, +5 on the connector. USB0-DRV - output, enable +5 output onto the connector
And I don't see anything in the Cubietruck DTS hooking those GPIOs into the OTG driver. So now I wonder what is the state of this, is it a simple fix or a month's work? On Thu, Oct 9, 2014 at 3:07 PM, [email protected] <[email protected]> wrote: > USB0-VBUSDET goes into GPIO PH22 on the Cubietruck. > I wonder that that does? It is marked as input. > > My understanding was that plugging an OTG device in would trigger that > input and signal the system to go into OTG mode. So how do I set this > up in a Cubietruck DTS? > > On Thu, Oct 9, 2014 at 3:00 PM, Benjamin Henrion <[email protected]> wrote: >> On Thu, Oct 9, 2014 at 8:49 PM, [email protected] <[email protected]> >> wrote: >>> Has anyone tried USB gadget mode on the A20? >>> >>> Any success? Which kernels does it work on? >>> >>> I tried it on mainline and the OTG device is not in the device tree, >>> I'm poking around and trying to figure out how to get it going. >> >> On the Ralink RT5350F, I spent quite some time to find out that you >> had to put a GPIO low in order to get the OTG mode. >> >> Maybe it is the same on A20? >> >> -- >> Benjamin Henrion <bhenrion at ffii.org> >> FFII Brussels - +32-484-566109 - +32-2-4148403 >> "In July 2005, after several failed attempts to legalise software >> patents in Europe, the patent establishment changed its strategy. >> Instead of explicitly seeking to sanction the patentability of >> software, they are now seeking to create a central European patent >> court, which would establish and enforce patentability rules in their >> favor, without any possibility of correction by competing courts or >> democratically elected legislators." >> >> -- >> 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 [email protected]. >> For more options, visit https://groups.google.com/d/optout. > > > > -- > Jon Smirl > [email protected] -- Jon Smirl [email protected] -- 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 [email protected]. For more options, visit https://groups.google.com/d/optout.
