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

[Marcin Cieslak]

The following reply was made to PR usb/149283; it has been noted by GNATS.

From: Marcin Cieslak <saper at saper.info>
To: Hans Petter Selasky <hselasky at c2i.net>
Cc: freebsd-usb at freebsd.org, FreeBSD-gnats-submit at freebsd.org
Subject: Re: usb/149283: avrdude unable to talk to Arduino board (via
 uftdi)
Date: Thu, 5 Aug 2010 09:35:10 +0000

 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