Files
simtrace2/usb_application/sniffer.py
Christina Quast 2b8a18bf3a Sniffer with ringbuf, works SOMETIMES
* Sniffer uses phone endpoints for communication and the ringbuffer
    routines the phone communication uses
* Most times the Usart1 interrupt is not triggered, and therefore
    no values are recorded
2015-04-12 09:31:36 +02:00

66 lines
1.4 KiB
Python
Executable File

#!/usr/bin/env python3
import usb.core
import usb.util
import sys
import array
from constants import PHONE_RD
def find_dev():
dev = usb.core.find(idVendor=0x03eb, idProduct=0x6004)
if dev is None:
raise ValueError("Device not found")
else:
print("Found device")
return dev
def find_eps(dev):
dev.set_configuration()
cfg = dev.get_active_configuration()
print("Active config: ")
print(cfg)
intf = cfg[(0,0)]
ep_in = usb.util.find_descriptor(
intf,
custom_match = \
lambda e: \
usb.util.endpoint_direction(e.bEndpointAddress) == \
usb.util.ENDPOINT_IN)
assert ep_in is not None
ep_out = usb.util.find_descriptor(
intf,
custom_match = \
lambda e: \
usb.util.endpoint_direction(e.bEndpointAddress) == \
usb.util.ENDPOINT_OUT)
assert ep_out is not None
print("****")
print(ep_in)
print(ep_out)
return (ep_in, ep_out)
# main code
def sniff():
dev = find_dev()
ans = array.array('B', [])
while True:
#ep_out.write("Hello")
try:
ans += dev.read(PHONE_RD, 64, 1000)
except KeyboardInterrupt:
print("Bye")
sys.exit()
except Exception as e:
print e
if len(ans) >= 15:
print("".join("%02x " % b for b in ans))
ans = array.array('B', [])