If the device is a USB -> parallel converter, it should behave like a parallel port, so why don't try to use it as a parallel port?
2011/7/8 Emilio Bellini <emilio.bell...@gmail.com>: > Hi all, > I'm sorry if this is a stupid question. > I want to control a circuit, which has 8 relè, and I want to switch them > on/off via software. Originally my idea was to control it using a parallel > port, but my laptop hasn't it. So, I'm trying to use an USB port with an USB > to Parallel converter. I can see the Device, and also I'm able to send some > data to the parallel port, but I don't know how to communicate efficently > with the Device. If I use dev.write(1, 'test', 0) or dev.write(1, '1', 0), > the result is the same: the 8 pins of my parallel port are set on the state > '00001000'. > The question is: is there a simple way to control the state of the 8 bits? > > Thank you in advanced for any hint! > Best regards, > Emilio > > ------------------------------------------------------------------------------ > All of the data generated in your IT infrastructure is seriously valuable. > Why? It contains a definitive record of application performance, security > threats, fraudulent activity, and more. Splunk takes this data and makes > sense of it. IT sense. And common sense. > http://p.sf.net/sfu/splunk-d2d-c2 > _______________________________________________ > pyusb-users mailing list > pyusb-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/pyusb-users > > -- Best Regards, Wander Lairson Costa ------------------------------------------------------------------------------ All of the data generated in your IT infrastructure is seriously valuable. Why? It contains a definitive record of application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-d2d-c2 _______________________________________________ pyusb-users mailing list pyusb-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/pyusb-users
