usb/149283: avrdude unable to talk to Arduino board (via uftdi)

[Marcin Cieslak]

On Wed, 4 Aug 2010, Hans Petter Selasky wrote:

> You can try to comment out:
>
>        /* clear stall at first run */
>        mtx_lock(&sc->sc_mtx);
>        usbd_xfer_set_stall(sc->sc_xfer[UFTDI_BULK_DT_WR]);
>        usbd_xfer_set_stall(sc->sc_xfer[UFTDI_BULK_DT_RD]);
>        mtx_unlock(&sc->sc_mtx);
>
> In uftdi_attach in sys/dev/usb/serial/uftdi.c.

That did not fix it ...

--Marcin