USB Device Release

python pyusb
user977601 picture user977601 · Sep 2, 2014 · Viewed 7.1k times · Source

I am currently working on PyUSB. As I am new to USB, I don’t know, how can I do the following.

I have successfully connected to my USB Device hardware from Python PyUSB. In the code I required to reset the USB Device hardware. Which I did by sending a command to the hardware. Now after hardware reset, I want to release the current USB device from Python PyUSB. And then I want to connect again to the USB Device Hardware after it come back from reset.

Please let me know, how can I release the USB Device Connection and interfaces etc so that I can reconnect?

Thank you very much in advance.

Answer

rishta picture rishta · Dec 25, 2016 
#!/usr/bin/python
from usb.core import find as finddev
dev = finddev(idVendor=0x1234, idProduct=0x5678)
dev.reset()

Related questions

Pyusb on windows - no backend available

I'm trying to have my python application interface with an NFC device via USB. The best option seems to be pyusb, but I can't get it to connect to the libusb backend. I keep getting ValueError: No backend available I've …

Read More
python pyusb import usb.core doesn't work

I am following the tutorial(http://pyusb.sourceforge.net/docs/1.0/tutorial.html) I am on windows xp sp3, my python version is 2.7 and I downloaded and installed the pyusb-1.0.0-a1.zip and libusb-win32-bin-1.2.4.0.zip import usb works fine but …

Read More
PyUsb USB Barcode Scanner

I'm trying to output a string from a barcode or qrcode using a Honeywell USB 3310g scanner in Ubuntu. I have libusb and a library called metro-usb (http://gitorious.org/other/metro-usb) which are enabling my scanner to work. If …

Read More