Interrupt out pipe toggle bit does not change

[Ryzee119]

When using tusb_host_xfer_data on a interrupt endpoint only the first packet is registered by my USB device. Subsequent packets are ignored.

The hc->toggle_out variable is never toggled by tusb_otg_out_channel_handler . Interrupt endpoints should behave the same as bulk endpoints in this regard.

The below code should also check HCCHAR_INTR and toggle the toggle_out bit. https://github.com/xtoolbox/TeenyUSB/blob/303431c66cc6f31935d090c5269550f31d49a351/usb_stack/src/teeny_usb_stm32_otg_host.c#L602-L604

I changed it to this which resolved my issue.

if(HcEpType == HCCHAR_BULK || HcEpType == HCCHAR_INTR){
    hc->toggle_out ^= 1U;
}

Reference: https://books.google.com.au/books?id=pkefBgAAQBAJ&lpg=PA52&ots=6_nyePBwxH&dq=interrupt%20endpoint%20toggle%20bits&pg=PA52#v=onepage&q&f=false