Misuse of parentheses for multiplication Life on Smooth World Why do neural network researchers care about epochs? Steepest descent/gradient descent as dynamical system Can anyone identify the city in this photo? In the IDLE gui I get the following result: IDLE 2.6.6 >>> import usb.core Traceback (most recent call last): File "
Whats the best way to view HEX files on Raspberry PiI quite like hexedit.sudo apt-get install hexedit Microprocessor, Raspberry Pi & Arduino HackerMainframe database troubleshooterMQTT EvangelistRPi owner since '12.Twitter: @DougieLawson2B, B+, Terms Privacy Security Status Help You can't perform that action at this time. There is something weird in the way I access an interface... If you don't know anything about USB, I recommend you the excellent Jan Axelson's book USB Complete. http://raspberrypi.stackexchange.com/questions/6774/installed-pyusb-still-importerror-no-module-named-core
I did fined the cause, at least on my machine: Raspberry pi comes with two installations of Python: 2.x and 3.x, but the installation script of pyusb installs the software on I have been struggling to get to grips with being able to "see" my pyusb installation from the IDLE3 editor. Enough talk, let's code! Goossens Apr 4 '13 at 9:49 add a comment| up vote 6 down vote pyusb library comes in two versions: stable (0.4.x) under development (1.0.x) Debian distribution only contains stable version
You can use manual interface claim to solve the configuration selection problem described in the libusb documentation. Date: Wednesday, February 23, 2011, 2:55 PM Hello, I've recently updated my OS (to openSuSe 11.3), after changing my motherboard (long story). claim_interface will claim the specified interface if the device has not done it yet. It also accepts the early described custom_match parameter.
I understand that I can withdraw my consent at any time. However I have stared at the two lines of "import usb.core" for several minutes and the are the same (at a text level). Easiness: Communicating with an USB device has never been so easy! Visit Website I would expect > it comes others ways of reading the kWh and not only > rely on IR pulse. > > > > -- > Xiaofan > > > ------------------------------------------------------------------------------
For example, if we have a configuration descriptor cfg and want to find all alternate settings of the interface 1, we do so: import usb.util alt = usb.util.find_descriptor(cfg, find_all=True, bInterfaceNumber=1) Notice I am now going slightly insane - any help / pointers would be much appreciated.RgdsCla Posts: 6Joined: Wed Feb 12, 2014 10:54 am by DeeJay » Wed Feb 12, 2014 2:32 Why didn't Dave Lister go home? Reporting bugs/Submitting patches Some people have been sending patches and reporting bugs directly at my email.
The find function has one more parameter that I haven't told you. page http://p.sf.net/sfu/splunk-dev2dev > _______________________________________________ > pyusb-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/pyusb-users > > -- Best Regards, Wander Lairson Costa LCoN - Laboratório de Computação Natural - Natural Computing Laboratory (http://www.mackenzie.com.br/lcon.html) Programa Thanks -Sarah -----Inline Attachment Follows----- ------------------------------------------------------------------------------ Free Software Download: Index, Search & Analyze Logs and other IT data in Real-Time with Splunk. I know I didn't import the file from windows as I haven't even looked at moving files from one to the other yet.I'm struggling with a new OS and programming environment
By default the messages are sent to sys.stderr. check my blog Thank you! /Tomas 2011/2/23 Xiaofan Chen
Jump to Line Go Contact GitHub API Training Shop Blog About © 2016 GitHub, Inc. Sep 9, 2012 setup.cfg Update docs to include pip install. The returned data if either an instance of the array object for the read method or the number of bytes written for the write method. http://caribtechsxm.com/python-error/python-error-log-mac.php Once the above packages are installed, you can install PyUSB with the command: $ sudo python setup.py install Run it as root from within the same directory as this README file.
And worst, you cannot simply ignore them, a device does not work without setting a configuration, even if it has just one! You better understand this concept if you think of an interface as a logical device. Installing PyUSB on GNU/Linux Systems These instructions are for Debian-based systems.
How to flood the entire lunar surfaces? See #20. Although PyUSB makes USB programming less painful, it is assumed in this tutorial that you have a minimal USB protocol background. http://caribtechsxm.com/python-error/python-error-function-2-6.php Because of it, you have a different function to deal with control transfers, all the other transfers are managed by the same functions.
Running python on Windows 7 32 bit. /Tomas Re: [pyusb-users] Can't "import usb.core" From: Xiaofan Chen
So far everything ok. For example, what if we would like to discover if there is a USB printer connected to the system? I had not made any connection that the version of python was different for IDLE 3, and after many hours I didn't come across anything that explained it (well so that With 1.0 version, things changed considerably.
So when we try to use it in version 3.x the error: "ImportError: no module named core" automaticly rises. Word for making your life circumstances seem much worse than they are Why do you use Bitcoin addresses instead of public keys? Apparently libusb isn't even needed or is already installed by default. For example, after getting your device object, one of the first things you need to do before communicating with it is issuing a set_configuration request.
So, to really find all printers connected to the system, we would need to transverse all configurations, and then all interfaces and check if one of the interfaces has its bInterfaceClass Now pyrow works like a charm! Do I have to use a specific version of pyusb on the Raspberry Pi? And a TV remote may be too complicate to start the experiment.
If you give it a true value, find will instead return a list with all devices matching the criteria. To enable it, define the environment variable PYUSB_DEBUG with one of the following level names: critical, error, warning, info or debug. Briefly describe the problem (required): Upload screenshot of ad (required): Select a file, or drag & drop file here. ✔ ✘ Please provide the ad click URL, if possible: Home Browse You can use a Configuration object as a parameter to set_configuration!
For fun, I'm trying to read what an IrDA usb dongle is receiving. However I was not able to pass the kernel extension issues with Yosemite. Reload to refresh your session.