On Sat, Nov 04, 2006 at 07:24:14PM +0100, Till Harbaum wrote: > Hi, > > Am Samstag, 4. November 2006 18:51 schrieb David Brownell: > > On Saturday 04 November 2006 9:04 am, Alan Stern wrote: > > > [libusb can send control messages with appropriate USB_RECIP_* values] > > > > > > There is no way to prevent libusb from being used to send these kinds of > > > messages. If they interfere with the proper operation of the device, > > > that's an indication the device wasn't designed very carefully. > > > > Read that last as: "that indicates the device design is buggy". :) > Hmm, please explain this a little further since i am the one who built the > device and i can still change these things. > > My device does all its communication via its control endpoint. Is this already > a bad idea?
Yes. If it requires a state machine for that control endpoint. > This is a device based on a software bitbanginf usb on an avr > microcontroller and doing it this way since this makes the firmware > significant easier. I have implemented these as vendor specific > control messages. > > Is this a bad in idea in general? Probably, but if you can handle any type of control message at any time, then you should be fine. This really sounds like a bug in your firmware, perhaps you should create some more endpoints and use them instead :) good luck, greg k-h ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
