import os, struct, fcntl
RANDOM_READ_BYTE = 1000
RANDOM_WRITE_BYTE = 2000
fd = os.open('/dev/seeprom', os.O_RDONLY)
fcntl.ioctl(fd, RANDOM_WRITE_BYTE, struct.pack('II', 10, 121))
r = fcntl.ioctl(fd, RANDOM_READ_BYTE, struct.pack('I', 10))
print ord(r[0])