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
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