ValueError -1
ValueError 0
SPI 1
SPI 2
ValueError 3
SPI X
SPI Y
ValueError Z
SPI(1)
SPI(1, SPI.MASTER, baudrate=328125, prescaler=256, polarity=1, phase=0, bits=8)
SPI(1, SPI.SLAVE, polarity=1, phase=1, bits=8)
OSError
b'\xff'
b'\xff'