from ch.psi.pshell.bs import Stream as Stream
try:
    s.close()
except:
    pass    
s = Stream("stream", bs)
s.initialize()
s.start(True)

s.waitCacheChange(5000)
print s.getIdentifiers()


for channel in s.children:
    add_device(channel, True)


#pid = s.getPidReader()

bscan(s, 10000)