andrewdodd / pyccsniffer Goto Github PK

I already install the pyusb library but still getting this error

Traceback (most recent call last):
File "C:\Users\670296728\Downloads\pyCCSniffer-master\pyCCSniffer-master\pyCCSniffer.py", line 236, in
snifferDev = CC253xEMK(handler, args.channel)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\670296728\Downloads\pyCCSniffer-master\pyCCSniffer-master\cc253xemk.py", line 76, in init
self.initialise()
File "C:\Users\670296728\Downloads\pyCCSniffer-master\pyCCSniffer-master\cc253xemk.py", line 79, in initialise
self.dev, self.vendor_product = _select_device(
^^^^^^^^^^^^^^^
File "C:\Users\670296728\Downloads\pyCCSniffer-master\pyCCSniffer-master\cc253xemk.py", line 26, in _select_device
return usb.core.find(idVendor=vp.idVendor,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Users\670296728\AppData\Local\Programs\Python\Python311\Lib\site-packages\usb\core.py", line 1309, in find
raise NoBackendError('No backend available')
usb.core.NoBackendError: No backend available

What firmware is supposed to be loaded?

Hi,

could you provide some example on how to use it with wireshark please ?
or should I use another tool for that purpose ?
TIA

When running sudo python pyCCSniffer.py with Python 2.7.9 The following exception occurs:

Traceback (most recent call last):
  File "pyCCSniffer.py", line 520, in <module>
    snifferDev = CC2531EMK(handlerDispatcher, args.channel)
  File "pyCCSniffer.py", line 293, in __init__
    self.name = usb.util.get_string(self.dev, 256, 2) # get name from USB descriptor
  File "/usr/local/lib/python2.7/dist-packages/usb/util.py", line 318, in get_string
    raise ValueError("The device does not support the specified langid")
ValueError: The device does not support the specified langid

It seems to be related to pyusb, but I have no real experience with python so I don't really know.

I have the following python modules installed:

RPi.GPIO==0.6.3
argparse==1.2.1
chardet==2.3.0
colorama==0.3.2
future==0.16.0
html5lib==0.999
ndg-httpsclient==0.3.2
pyOpenSSL==0.13.1
pyasn1==0.1.7
python-apt==0.9.3.12
pyusb==1.0.0
requests==2.4.3
six==1.8.0
urllib3==1.9.1
wheel==0.24.0
wsgiref==0.1.2

For pyusb I have installed libusb:

libusb-0.1-4/stable,now 2:0.1.12-25 armhf [installed]
libusb-1.0-0/stable,now 2:1.0.19-1 armhf [installed]
libusb-1.0-0-dbg/stable,now 2:1.0.19-1 armhf [installed]
libusb-1.0-0-dev/stable,now 2:1.0.19-1 armhf [installed]
libusb-1.0-doc/stable,now 2:1.0.19-1 all [installed]

Hi. I've been using your code for sniffing 802.15.4 packets using the CC2531 dongle. I would just like to ask, what is the meaning of a series of 4 bytes received from the dongle when there is no activity in the channel.

I also asked this question in the TI forum and I showed there an example of what I'm currently seeing in the terminal when there is no activity.

https://e2e.ti.com/support/wireless-connectivity/zigbee-and-thread/f/158/p/807758/2991556#2991556

I also hope that I can get your email as I would like to ask questions regarding this sniffer code.

Thanks in advance!

I'm trying to use pyCCSniffer on Linux, with the latest walac/pyusb@2e46791.

I'm getting a crash in pyCCSniffer.py, line 332 at bytesteam = self.dev.read(CC2531EMK.DATA_EP, 4096, 0, CC2531EMK.DATA_TIMEOUT).

It looks like the signature is (now) usb.core.Device.read(self, endpoint, size_or_buffer, timeout=None), so the 0 argument shouldn't be there.

Turns out the interface parameter was removed in walac/pyusb@6ead753.