Nothing get's printed. -------- Original-Nachricht -------- > Datum: Wed, 31 Oct 2012 20:55:54 +0100 > Von: Tormod Volden <lists.tor...@gmail.com> > An: pyusb-users@lists.sourceforge.net > Betreff: Re: [pyusb-users] Getting string descriptor
> On Tue, Oct 30, 2012 at 3:20 PM, Tormod Volden wrote: > > On Tue, Oct 30, 2012 at 3:06 PM, Stefano Di Martino wrote: > >> Well it did blow things up. Sorry for bothering you guys. :-( > >> But thanks for your help!! > > > > OK, but it should not blow up because of this. IMO pyusb should either > > guard against this, or give a warning or a better error message. Can > > you please tell what the device returns when you ask it for the 510 > > bytes descriptor? > > Before you go on to USB sniffing, maybe it will be enough to see what > libusb and libusbx are returning, to determine if there is a bug in > pyusb or libusbx. Can you please apply the below patch to pyusb and > run your test both with libusb and libusbx? > > Tormod > > > diff --git a/usb/backend/libusb1.py b/usb/backend/libusb1.py > index 8bf9515..bedb258 100644 > --- a/usb/backend/libusb1.py > +++ b/usb/backend/libusb1.py > @@ -598,6 +598,8 @@ class _LibUSB(usb.backend.IBackend): > if usb.util.ctrl_direction(bmRequestType) == usb.util.CTRL_OUT: > return ret.value > else: > + if (bRequest == 0x06) and ((wValue >> 8) == 0x03) and > ((wValue & 0xff) != 0): > + print "DEBUG:", data_or_wLength, length, ret.value, buff > return buff[:ret.value] > > @methodtrace(_logger) > > ------------------------------------------------------------------------------ > Everyone hates slow websites. So do we. > Make your web apps faster with AppDynamics > Download AppDynamics Lite for free today: > http://p.sf.net/sfu/appdyn_sfd2d_oct > _______________________________________________ > pyusb-users mailing list > pyusb-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/pyusb-users ------------------------------------------------------------------------------ LogMeIn Central: Instant, anywhere, Remote PC access and management. Stay in control, update software, and manage PCs from one command center Diagnose problems and improve visibility into emerging IT issues Automate, monitor and manage. Do more in less time with Central http://p.sf.net/sfu/logmein12331_d2d _______________________________________________ pyusb-users mailing list pyusb-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/pyusb-users
