On Wed, 14 Feb 2007, Sven Anders wrote: > Hello! > > I want to change the actual "appletouch.c" USB driver and run into a problem. > > > After I called > > usb_fill_int_urb(dev->urb, udev, > usb_rcvintpipe(udev, int_in_endpointAddr), > dev->data, dev->datalen, atp_complete, dev, 1); > > > the driver waits until the USB device (here the touchpad) starts sending data > (after I touched it). It does this continuously until I unload the driver.
Isn't that exactly what it's supposed to do? What good is a driver if it doesn't wait for the device to send data? > If I change the driver to not (re)call the function > > usb_submit_urb(dev->urb, GFP_ATOMIC); > > in the "atp_complete" function, it stops. But it does not wait (as the first > time) to restart the transfer. Is it possible to let the USB device restart > the transfer after I touched the pad again? Yes. :-) Your question isn't clear. It looks like you're asking how to restart the transfer. The answer is obvious: Change the driver back so that it _does_ call usb_submit_urb() inside atp_complete(). Alan Stern ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
