Hi Peter, > > - I use the port in HOST mode by plugging in a USB pendrive over the OTG- > > capable > > reduction ; this works OK > > - I disconnect the reduction and connect it to the computer ; here I get > > "timeout waiting for 00000800 in 11". > > > > This means the BSV bit in OTGSC register wasn't unset. > > > > Interestingly enough, transition the other way around (first use in > > gadget mode > > then in host mode) works fine, but if I do host mode -> gadget mode, I > > get the > > timeout. Do you have any hint for me? > > It means your OTG VBUS does not lower than BSV (B SESSION VALID, 0.8v) > after plugging out Micro-B-TO-A cable. Where can I measure this? > Two possible reasons: > > 1. You have not gpio control for vbus toggle when role switches. This works well. > 2. Your hardware has some problems that the vbus can't lower than 0.8v. How can I check that? > > btw. what is the plan about cleaning up and upstreaming all these patches > > we > > have here? Is anyone working on it? I'd hate to stomp on anyones' > > efforts,but > > I'd also like to see this mess sorted out. > > We had something un-decided before, now, things almost are cleared. > But I am a little busy recently, I hope I can begin to work on it > from next week. Ok then, I won't interfere. Best regards, Marek Vasut -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
