Hi Wander, The files and the symbolic links are under /usr/lib/
# ls -l /usr/lib/libusb* lrwxrwxrwx 1 root root 19 Jan 24 10:12 /usr/lib/libusb-0.1. so.4 -> libusb-0.1.so.4.4.4 -rwxr-xr-x 1 root root 14912 Jan 24 10:34 /usr/lib/libusb-0.1. so.4.4.4 lrwxrwxrwx 1 root root 19 Jan 24 09:44 /usr/lib/libusb-1.0. so -> libusb-1.0.so.0.1.0 lrwxrwxrwx 1 root root 19 Jan 24 09:44 /usr/lib/libusb-1.0. so.0 -> libusb-1.0.so.0.1.0 -rwxr-xr-x 1 root root 84580 Jan 24 10:34 /usr/lib/libusb-1.0. so.0.1.0 lrwxrwxrwx 1 root root 19 Jan 24 10:12 /usr/lib/libusb.so -> libusb-0.1.so.4.4.4 Regards, Simone R >----Messaggio originale---- >Da: "Wander Lairson Costa" <wander.lair...@gmail.com> >Data: 26-gen-2017 15.05 >A: "sred...@libero.it"<sred...@libero.it>, "pyusb-users"<pyusb-users@lists. sourceforge.net> >Ogg: Re: [pyusb-users] libusb error > >Where is libusb installed? > >2017-01-26 8:57 GMT-02:00 sred...@libero.it <sred...@libero.it>: >> Dear Sirs, >> >> I have tried to use pyusb module and I have used a script in order to test >> it, but the script terminates with an error: >> >> 2017-01-26 07:46:41,662 ERROR:usb.libloader:'Libusb 1' could not be found >> 2017-01-26 07:46:41,685 ERROR:usb.backend.libusb1:Error loading libusb 1.0 >> backend >> 2017-01-26 07:46:41,795 ERROR:usb.libloader:'OpenUSB library' could not be >> found >> 2017-01-26 07:46:41,804 ERROR:usb.backend.openusb:Error loading OpenUSB >> backend >> 2017-01-26 07:46:42,098 ERROR:usb.libloader:'Libusb 0' could not be found >> 2017-01-26 07:46:42,108 ERROR:usb.backend.libusb0:Error loading libusb 0.1 >> backend >> Traceback (most recent call last): >> File "./usbtest.py", line 13, in <module> >> dev = usb.core.find(find_all=True) >> File >> "/root/Buildroot/output/target/usr/lib/python3.4/site-packages/usb/core. py", >> line 1263, in find >> usb.core.NoBackendError: No backend available >> >> >> libusb is already installed on the system, but it seems that it is not seen >> by the module. >> >> How can I fix this problem? >> >> Thanking you in advance, >> >> Simone Rossi >> >> ------------------------------------------------------------------------------ >> Check out the vibrant tech community on one of the world's most >> engaging tech sites, SlashDot.org! http://sdm.link/slashdot >> _______________________________________________ >> pyusb-users mailing list >> pyusb-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/pyusb-users >> > > > >-- >Best Regards, >Wander Lairson Costa > ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, SlashDot.org! http://sdm.link/slashdot _______________________________________________ pyusb-users mailing list pyusb-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/pyusb-users
