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Re: [pyusb-users] ValueError: No backend available
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From: Chris <ch...@pi...> - 2011-03-17 09:33:48
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On 16/03/2011 22:36, Emmanuel Blot wrote: >> -rwxr-xr-x 1 root admin 44980 12 Jun 2008 /sw/lib/libusb-0.1.4.4.4.dylib >> lrwxr-xr-x 1 root admin 22 16 Mar 13:58 /sw/lib/libusb-0.1.4.dylib >> -> libusb-0.1.4.4.4.dylib >> lrwxr-xr-x 1 root admin 22 16 Mar 13:58 /sw/lib/libusb.dylib -> >> libusb-0.1.4.4.4.dylib >> -rwxr-xr-x 1 root admin 39364 12 Jun 2008 >> /sw/lib/libusbpp-0.1.4.4.4.dylib >> lrwxr-xr-x 1 root admin 24 16 Mar 13:58 >> /sw/lib/libusbpp-0.1.4.dylib -> libusbpp-0.1.4.4.4.dylib >> lrwxr-xr-x 1 root admin 24 16 Mar 13:58 /sw/lib/libusbpp.dylib -> >> libusbpp-0.1.4.4.4.dylib >> >> Do any of these have to have the same name as listed in usb/backend? > > The first ones are (they are mostly symlinks to) the libusb-0.1.4 backend. > I'm not sure about the *pp* version, I have not used this deprecated > backend for a while. > > Have you tried to install libusb 1.0 ? > > I'm using homebrew (rather than Fink / MacPorts) with libusb 1.0 with > no issue. > > Cheers, > Manu > I've just installed it now, I have these in there now: -rwxr-xr-x 1 root admin 65296 17 Mar 02:28 /sw/lib/libusb-1.0.0.dylib lrwxr-xr-x 1 root admin 18 17 Mar 02:28 /sw/lib/libusb-1.0.dylib -> libusb-1.0.0.dylib Still no dice. It's a head scratcher. I must be missing something. Chris |