On Fri, 27 Jul 2007, Gabriel Maganis wrote: > > A more important question is: Why do you want to change > > usb_device->speed from USB_SPEED_LOW to USB_SPEED_FULL? Was there > > something wrong with the USB_SPEED_LOW setting? > > > > Alan Stern > > > > > > Hello Alan, > I would just like to know what response (if at all, garbage, or > meaningful) it would give me if I send it a packet "at > USB_SPEED_FULL". Do I also need to change some fields in the > usb_device structure? I tried changing the ep0.desc.wMaxPacketSize to > match a device configured at full speed but it didn't work also.
But why? If you have a low-speed device like a keyboard and you send it a packet at full-speed, the device won't be able to receive the packet. Hence it won't send a reply, at any speed. There's no need to actually do a test; it can't possibly work. Alan Stern ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
