hi, Michael thanks for your quick reply I don't concern the CPU efficiency. I just to write a applied program , get the foot switch keycode and sent it to another programe named keycode operation pannel. Because I don't know when the user will click the foot switch, and no hardware interrupt can be used , I hope to set an receieve event in the applied program to notice me. Do you have any good idea?
-----Original Message----- From: Michael Plante [mailto:michael.pla...@gmail.com] Sent: 2011年3月18日 10:56 To: libftdi@developer.intra2net.com Subject: RE: how to set receieve event in libftdi-0.18 Wu, Ruiyu wrote: >> I don't want to use the polling way. USB is inherently polled. If YOU are not polling it manually, then some lower layer is polling for you. Is your concern CPU efficiency, or is it that you want any "complexity" to lie somewhere other than in your code? Regards, Michael -- libftdi - see http://www.intra2net.com/en/developer/libftdi for details. To unsubscribe send a mail to libftdi+unsubscr...@developer.intra2net.com -- libftdi - see http://www.intra2net.com/en/developer/libftdi for details. To unsubscribe send a mail to libftdi+unsubscr...@developer.intra2net.com
