Am Mittwoch, 1. Juli 2009 11:01:06 schrieb Arseniy Lartsev: > On Wednesday 01 July 2009 01:01:00 Alan Stern wrote: > > This looks like your problem. Low-speed devices are not allowed to > > have bulk endpoints. Linux internally changes them to interrupt > > endpoints with interval = 1 and maxpacket size no larger than 8. > > Maybe this device is a little "buggy". But Linux should support buggy > devices as well. Yes, it should. We just needed to understand why it failed. > + ep = (usb_pipein(acm->rx_endpoint) ? acm->dev->ep_in : acm->dev->ep_out) > + [usb_pipeendpoint(acm->rx_endpoint)]; > + if (usb_endpoint_xfer_int(&ep->desc)) > + usb_fill_int_urb(rcv->urb, acm->dev, > + acm->rx_endpoint, > + buf->base, > + acm->readsize, > + acm_read_bulk, rcv, 0xff); The patch is good except for this. We should make sure this interval matches usbcore's value. Would you care to redo it with that change? Regards Oliver -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
