Hi Tormod, Thank you for getting back to me regarding this issue. On April 20, 2012 08:36:39 AM Tormod Volden wrote: > On Fri, Apr 20, 2012 at 2:46 AM, Ron Eggler wrote: [snip] > > Hi, > You don't compile with libusb-compat support. An application (like > pyusb 0.4.x) simply builds against the libusb-0.1 interface, and at > run-time it links either a libusb-0.1 "real" library or a > libusb-compat library. Normally you only have one of these installed. > If you have both installed, it depends on the run-time linker which > one is picked (see ld.so.conf or LD_LIBRARY_PATH).
Now I'm confused, isn't libusb-compat here to guarantee backwards compatibility to libusb-0.10.x if libusb-1.x is installed? > > If your doing static builds, the one that the build linker picks will > be included. If you have both on your machine, you can massage the -L > options (e.g. through LDLIBS in makefiles) to search the right > directories first. I'm trying to put a buildroot environment together yhat includes libusb-1.0.8 but is backwards compatible to libusb-0.1.12 to get the pywws driver (http://pywws.googlecode.com/) for the weather station to work. I seeminly got troubles to get it to work in our little embedded environment but I can establish communication using my desktop PC that's running on Kubuntu 11.10 (kernel 3.0.0) which was built using libusb-1.0.0. On pywws website > > On typical Linux distributions, the package management assures that > only one of them is installed. > > Tormod > > > Thank you!1 > > Ron > > > > -- > > Ron Eggler > > Senior Systems Engineer > > > > SemiosBIO > > Discovery Parks Vancouver > > 887 Great Northern Way > > Vancouver, BC > > V5T 1E2 > > cell: 778 230 9442 > > www.semiosbio.com > > regg...@semiosbio.com > > > > ------------------------------------------------------------------------ > > ------ For Developers, A Lot Can Happen In A Second. > > Boundary is the first to Know...and Tell You. > > Monitor Your Applications in Ultra-Fine Resolution. Try it FREE! > > http://p.sf.net/sfu/Boundary-d2dvs2 > > _______________________________________________ > > pyusb-users mailing list > > pyusb-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/pyusb-users > > ---------------------------------------------------------------------------- > -- For Developers, A Lot Can Happen In A Second. > Boundary is the first to Know...and Tell You. > Monitor Your Applications in Ultra-Fine Resolution. Try it FREE! > http://p.sf.net/sfu/Boundary-d2dvs2 > _______________________________________________ > pyusb-users mailing list > pyusb-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/pyusb-users -- Ron Eggler Senior Systems Engineer SemiosBIO Discovery Parks Vancouver 887 Great Northern Way Vancouver, BC V5T 1E2 cell: 778 230 9442 www.semiosbio.com regg...@semiosbio.com ------------------------------------------------------------------------------ For Developers, A Lot Can Happen In A Second. Boundary is the first to Know...and Tell You. Monitor Your Applications in Ultra-Fine Resolution. Try it FREE! http://p.sf.net/sfu/Boundary-d2dvs2 _______________________________________________ pyusb-users mailing list pyusb-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/pyusb-users
