1ValueError -1
2ValueError 0
3SPI 1
4SPI 2
5SPI(1)
6SPI(1, SPI.MASTER, baudrate= , polarity=1, phase=0, bits=8)
7SPI(1, SPI.SLAVE, polarity=1, phase=1, bits=8)
8OSError
9b'\xff'
10b'\xff'
11