On 10/28/13 10:37, Aurélien Croc de Suray wrote:
You can try to edit the "sys/dev/usb/serial/ulpt.c" driver and remove
the reading of the status message.
Please can you be more precise? I'm not sure what to do. And do you think this
will solve the reading / writing problem?
I think your device might be counterfeit, given the bad spelling of the
manufacturer. This string comes from the device itself.
Well, very nice... I bought it in a famous computer shop..
Thank you again for your help
Hi,
Look for function "ulpt_watchdog()":
static void
ulpt_watchdog(void *arg)
{
struct ulpt_softc *sc = arg;
mtx_assert(&sc->sc_mtx, MA_OWNED);
#if 0 /* add this */
/*
* Only read status while the device is not opened, due to
* possible hardware or firmware bug in some printers.
*/
if (sc->sc_fflags == 0)
usbd_transfer_start(sc->sc_xfer[ULPT_INTR_DT_RD]);
#endif /* add this */
usb_callout_reset(&sc->sc_watchdog,
hz, &ulpt_watchdog, sc);
}
--HPS
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