> > so, when the function is still busy completing command or the command > sequence failed to complete, how do gadget driver tell udc to response > Control writes with NAK/STALL?
The gadget driver only has to worry about telling the controller to complete the request (by submitting a usb_request in response), or stalling it (returning a fault code from the setup callback, or later setting an explicit halt). One of the controller driver's responsibilities is to issue NAKs until the gadget driver decides which of those responses to use. ------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Do you grep through log files for problems? Stop! Download the new AJAX search engine that makes searching your log files as easy as surfing the web. DOWNLOAD SPLUNK! http://sel.as-us.falkag.net/sel?cmd=lnk&kid=103432&bid=230486&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
