Re: [pyusb-users] PyUSB on Intel Galileo Gen 2
On Tue, Nov 25, 2014 at 7:33 AM, Setia Budi wrote: > Hi all, > At the moment I am working with Intel Galileo Gen2 with Yocto Linux running > on top of it. This micro PC is planned to replace some other micro PC for > field experiment. > I installed pyusb on it without any issue, however, once I run my script, > which is using pyusb module, I found this error message: > > Traceback (most recent call last): > File "pyru824.py", line 71, in > RFID_READER = usb.core.find(idVendor=VENDOR_ID, idProduct=PRODUCT_ID) > File "/usr/lib/python2.7/site-packages/usb/core.py", line 1199, in find > raise ValueError('No backend available') > ValueError: No backend available > > I am just wondering whether anyone has a solution for this problem? > Thank you :) Did you install libusb-1.0? For Linux it is better to install libusb-1.0 as the backend for pyusb. If your Linux distro does not provide the package, then you need to build from source. But most Linux distros provide libusb-1.0. Website: http://libusb.info/ Download: http://sourceforge.net/projects/libusb/ -- Xiaofan -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk ___ pyusb-users mailing list pyusb-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/pyusb-users
Re: [pyusb-users] PyUSB on Intel Galileo Gen 2
Thanks for the hint. I will try it now :) Kind regards, Budi On Tue, Nov 25, 2014 at 12:17 PM, Xiaofan Chen wrote: > On Tue, Nov 25, 2014 at 7:33 AM, Setia Budi wrote: > > Hi all, > > At the moment I am working with Intel Galileo Gen2 with Yocto Linux > running > > on top of it. This micro PC is planned to replace some other micro PC for > > field experiment. > > I installed pyusb on it without any issue, however, once I run my script, > > which is using pyusb module, I found this error message: > > > > Traceback (most recent call last): > > File "pyru824.py", line 71, in > > RFID_READER = usb.core.find(idVendor=VENDOR_ID, idProduct=PRODUCT_ID) > > File "/usr/lib/python2.7/site-packages/usb/core.py", line 1199, in find > > raise ValueError('No backend available') > > ValueError: No backend available > > > > I am just wondering whether anyone has a solution for this problem? > > Thank you :) > > Did you install libusb-1.0? For Linux it is better to install libusb-1.0 > as the backend for pyusb. If your Linux distro does not provide > the package, then you need to build from source. But most > Linux distros provide libusb-1.0. > > Website: http://libusb.info/ > Download: http://sourceforge.net/projects/libusb/ > > > -- > Xiaofan > > > -- > Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server > from Actuate! Instantly Supercharge Your Business Reports and Dashboards > with Interactivity, Sharing, Native Excel Exports, App Integration & more > Get technology previously reserved for billion-dollar corporations, FREE > > http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk > ___ > pyusb-users mailing list > pyusb-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/pyusb-users > -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk___ pyusb-users mailing list pyusb-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/pyusb-users
Re: [pyusb-users] PyUSB on Intel Galileo Gen 2
configure: error: in `/home/root/libusb-1.0.9': configure: error: no acceptable C compiler found in $PATH Need to get c compiler >.< On Tue, Nov 25, 2014 at 12:23 PM, Setia Budi wrote: > Thanks for the hint. I will try it now :) > > Kind regards, > Budi > > On Tue, Nov 25, 2014 at 12:17 PM, Xiaofan Chen wrote: > >> On Tue, Nov 25, 2014 at 7:33 AM, Setia Budi wrote: >> > Hi all, >> > At the moment I am working with Intel Galileo Gen2 with Yocto Linux >> running >> > on top of it. This micro PC is planned to replace some other micro PC >> for >> > field experiment. >> > I installed pyusb on it without any issue, however, once I run my >> script, >> > which is using pyusb module, I found this error message: >> > >> > Traceback (most recent call last): >> > File "pyru824.py", line 71, in >> > RFID_READER = usb.core.find(idVendor=VENDOR_ID, >> idProduct=PRODUCT_ID) >> > File "/usr/lib/python2.7/site-packages/usb/core.py", line 1199, in >> find >> > raise ValueError('No backend available') >> > ValueError: No backend available >> > >> > I am just wondering whether anyone has a solution for this problem? >> > Thank you :) >> >> Did you install libusb-1.0? For Linux it is better to install libusb-1.0 >> as the backend for pyusb. If your Linux distro does not provide >> the package, then you need to build from source. But most >> Linux distros provide libusb-1.0. >> >> Website: http://libusb.info/ >> Download: http://sourceforge.net/projects/libusb/ >> >> >> -- >> Xiaofan >> >> >> -- >> Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server >> from Actuate! Instantly Supercharge Your Business Reports and Dashboards >> with Interactivity, Sharing, Native Excel Exports, App Integration & more >> Get technology previously reserved for billion-dollar corporations, FREE >> >> http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk >> ___ >> pyusb-users mailing list >> pyusb-users@lists.sourceforge.net >> https://lists.sourceforge.net/lists/listinfo/pyusb-users >> > > -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk___ pyusb-users mailing list pyusb-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/pyusb-users
Re: [pyusb-users] PyUSB on Intel Galileo Gen 2
Actually, libusb is available on Yocto Linux: root@clanton:~# ls /lib/ | grep libusb libusb-0.1.so.4 libusb-0.1.so.4.4.4 libusb-1.0.so.0 libusb-1.0.so.0.1.0 But still, every time I call my script, I always have this error message Traceback (most recent call last): File "pyru824.py", line 71, in RFID_READER = usb.core.find(idVendor=VENDOR_ID, idProduct=PRODUCT_ID) File "/usr/lib/python2.7/site-packages/usb/core.py", line 1199, in find raise ValueError('No backend available') ValueError: No backend available Kind regards, Budi On Tue, Nov 25, 2014 at 12:49 PM, Setia Budi wrote: > configure: error: in `/home/root/libusb-1.0.9': > configure: error: no acceptable C compiler found in $PATH > > > Need to get c compiler >.< > > > > On Tue, Nov 25, 2014 at 12:23 PM, Setia Budi wrote: > >> Thanks for the hint. I will try it now :) >> >> Kind regards, >> Budi >> >> On Tue, Nov 25, 2014 at 12:17 PM, Xiaofan Chen >> wrote: >> >>> On Tue, Nov 25, 2014 at 7:33 AM, Setia Budi >>> wrote: >>> > Hi all, >>> > At the moment I am working with Intel Galileo Gen2 with Yocto Linux >>> running >>> > on top of it. This micro PC is planned to replace some other micro PC >>> for >>> > field experiment. >>> > I installed pyusb on it without any issue, however, once I run my >>> script, >>> > which is using pyusb module, I found this error message: >>> > >>> > Traceback (most recent call last): >>> > File "pyru824.py", line 71, in >>> > RFID_READER = usb.core.find(idVendor=VENDOR_ID, >>> idProduct=PRODUCT_ID) >>> > File "/usr/lib/python2.7/site-packages/usb/core.py", line 1199, in >>> find >>> > raise ValueError('No backend available') >>> > ValueError: No backend available >>> > >>> > I am just wondering whether anyone has a solution for this problem? >>> > Thank you :) >>> >>> Did you install libusb-1.0? For Linux it is better to install libusb-1.0 >>> as the backend for pyusb. If your Linux distro does not provide >>> the package, then you need to build from source. But most >>> Linux distros provide libusb-1.0. >>> >>> Website: http://libusb.info/ >>> Download: http://sourceforge.net/projects/libusb/ >>> >>> >>> -- >>> Xiaofan >>> >>> >>> -- >>> Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server >>> from Actuate! Instantly Supercharge Your Business Reports and Dashboards >>> with Interactivity, Sharing, Native Excel Exports, App Integration & more >>> Get technology previously reserved for billion-dollar corporations, FREE >>> >>> http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk >>> ___ >>> pyusb-users mailing list >>> pyusb-users@lists.sourceforge.net >>> https://lists.sourceforge.net/lists/listinfo/pyusb-users >>> >> >> > -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk___ pyusb-users mailing list pyusb-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/pyusb-users
Re: [pyusb-users] PyUSB on Intel Galileo Gen 2
Hi, Could you please run with the env var PYUSB_DEBUG=debug and post the logs? 2014-11-25 3:31 GMT-02:00 Setia Budi : > Actually, libusb is available on Yocto Linux: > > root@clanton:~# ls /lib/ | grep libusb > libusb-0.1.so.4 > libusb-0.1.so.4.4.4 > libusb-1.0.so.0 > libusb-1.0.so.0.1.0 > > But still, every time I call my script, I always have this error message > > Traceback (most recent call last): > File "pyru824.py", line 71, in > RFID_READER = usb.core.find(idVendor=VENDOR_ID, idProduct=PRODUCT_ID) > File "/usr/lib/python2.7/site-packages/usb/core.py", line 1199, in find > raise ValueError('No backend available') > ValueError: No backend available > > Kind regards, > Budi > > > On Tue, Nov 25, 2014 at 12:49 PM, Setia Budi wrote: >> >> configure: error: in `/home/root/libusb-1.0.9': >> configure: error: no acceptable C compiler found in $PATH >> >> >> Need to get c compiler >.< >> >> >> >> On Tue, Nov 25, 2014 at 12:23 PM, Setia Budi wrote: >>> >>> Thanks for the hint. I will try it now :) >>> >>> Kind regards, >>> Budi >>> >>> On Tue, Nov 25, 2014 at 12:17 PM, Xiaofan Chen >>> wrote: On Tue, Nov 25, 2014 at 7:33 AM, Setia Budi wrote: > Hi all, > At the moment I am working with Intel Galileo Gen2 with Yocto Linux > running > on top of it. This micro PC is planned to replace some other micro PC > for > field experiment. > I installed pyusb on it without any issue, however, once I run my > script, > which is using pyusb module, I found this error message: > > Traceback (most recent call last): > File "pyru824.py", line 71, in > RFID_READER = usb.core.find(idVendor=VENDOR_ID, > idProduct=PRODUCT_ID) > File "/usr/lib/python2.7/site-packages/usb/core.py", line 1199, in > find > raise ValueError('No backend available') > ValueError: No backend available > > I am just wondering whether anyone has a solution for this problem? > Thank you :) Did you install libusb-1.0? For Linux it is better to install libusb-1.0 as the backend for pyusb. If your Linux distro does not provide the package, then you need to build from source. But most Linux distros provide libusb-1.0. Website: http://libusb.info/ Download: http://sourceforge.net/projects/libusb/ -- Xiaofan -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk ___ pyusb-users mailing list pyusb-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/pyusb-users >>> >>> >> > > > -- > Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server > from Actuate! Instantly Supercharge Your Business Reports and Dashboards > with Interactivity, Sharing, Native Excel Exports, App Integration & more > Get technology previously reserved for billion-dollar corporations, FREE > http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk > ___ > pyusb-users mailing list > pyusb-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/pyusb-users > -- Best Regards, Wander Lairson Costa -- Download BIRT iHub F-Type - The Free Enterprise-Grade BIRT Server from Actuate! Instantly Supercharge Your Business Reports and Dashboards with Interactivity, Sharing, Native Excel Exports, App Integration & more Get technology previously reserved for billion-dollar corporations, FREE http://pubads.g.doubleclick.net/gampad/clk?id=157005751&iu=/4140/ostg.clktrk ___ pyusb-users mailing list pyusb-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/pyusb-users