Hi Marek,
While working on enabling the musb device-model support on more sunxi boards, I noticed a problem with usb-keyboards when plugged into an usb-2 hub and thus connected via the ehci code.
In the scenario of a usb-kbd connected to an ehci controller, combined with using CONFIG_SYS_USB_EVENT_POLL_VIA_INT_QUEUE (*), an ehci code bug triggers which causes every other usb interrupt packet to get lost due to a data toggle mismatch. We've had this bug for a long time, loosing the key release packets most of the time, which did not matter, until my recent usb-kbd keyrepeat changes.
The first patch in this series fixes this, the second patch is a better safe then sorry patch I wrote while working on this.
Can you please queue both of these up for merging into v2015.07 ?
Thanks & Regards,
Hans
*) Which AFAIK sofar is only used by sunxi...