21 	int		status;  in do_read()  local
30 	status = read(fd, buf, len);  in do_read()
31 	if (status < 0) {  in do_read()
35 	if (status != len) {  in do_read()
40 	printf("read(%2d, %2d): %02x %02x,", len, status,  in do_read()
42 	status -= 2;  in do_read()
44 	while (status-- > 0)  in do_read()
53 	int			status;  in do_msg()  local
68 	status = ioctl(fd, SPI_IOC_MESSAGE(2), xfer);  in do_msg()
69 	if (status < 0) {  in do_msg()
74 	printf("response(%2d, %2d): ", len, status);  in do_msg()