2012/12/16 ragman <gaza...@gmail.com>: > Hi Folks, > > USB newbie here. I'm trying to (understand and) read data from an > interrupt endpoint: > Endpoint Descriptor: > bLength 7 > bDescriptorType 5 > bEndpointAddress 0x81 EP 1 IN > bmAttributes 3 > Transfer Type Interrupt > Synch Type None > Usage Type Data > wMaxPacketSize 0x0008 1x 8 bytes > bInterval 8 > > using: > print dev.read(0x81,8,0,1000) > > But I'm getting timouts every time, no matter the timout setting. As > I'm still learning USB I'm guessing I misunderstand (most of it) > interuppt endpoints. > > busdog shows me that the native software reads 2 bytes device every 60 > seconds. > Any help would be...helpful and much appreciated. >
Did you issue a set_configuration()? -- Best Regards, Wander Lairson Costa ------------------------------------------------------------------------------ LogMeIn Rescue: Anywhere, Anytime Remote support for IT. Free Trial Remotely access PCs and mobile devices and provide instant support Improve your efficiency, and focus on delivering more value-add services Discover what IT Professionals Know. Rescue delivers http://p.sf.net/sfu/logmein_12329d2d _______________________________________________ pyusb-users mailing list pyusb-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/pyusb-users
