def open(self):
with self.mylock:
if not self.isOpen():
if self.olimex_sn:
self.port = ttyusb.find_tty_acm_sn(
'0483', '5740', self.olimex_sn)
else:
olimex_ports = ttyusb.find_tty_acm('0483', '5740')
if len(olimex_ports) > 1:
raise 'more than one olimex connected'\
'but serial number is not specified'
self.port = olimex_ports[0]
super(Olimex, self).open()
return self.port
def find_olimex_port(self):
""" Find the Olimex serial port that is connected"""
self.olimex_port = ttyusb.find_tty_acm_sn('0483', '5740', olimex_sn)
return self.olimex_port
