# Wait for any edge on either DP and/or DM.
pins = self.wait([{0: 'e'}, {1: 'e'}])
sym = symbols[self.signalling][pins]
if sym == 'SE0':
self.samplenum_lastedge = self.samplenum
# Wait for any edge on either DP and/or DM.
pins = self.wait([{0: 'e'}, {1: 'e'}])
sym = symbols[self.signalling][pins]
if sym == 'SE0':
self.samplenum_lastedge = self.samplenum