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/
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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
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> https://lists.sourceforge.net/lists/listinfo/pyusb-users
>
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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
>>
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>> ___
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>> pyusb-users@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/pyusb-users
>>
>
>
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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
>>> ___
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>>> pyusb-users@lists.sourceforge.net
>>> https://lists.sourceforge.net/lists/listinfo/pyusb-users
>>>
>>
>>
>
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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
--
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more
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>>>
>>>
>>
>
>
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Wander Lairson Costa
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