def cfg_write(self, offset, val):
assert offset >= 0 and offset < 0x400
buf = c.create_string_buffer(struct.pack("I", val))
c.pwrite(self.device, buf, 4, self.config_offset + offset)
def cfg_read(self, offset):
assert offset >= 0 and offset < 0x400
buf = c.create_string_buffer(4)
c.pread(self.device, buf, 4, self.config_offset + offset)
return struct.unpack("I", buf)[0]
