SPI_IOC_MESSAGE 320 drivers/spi/spidev.c || _IOC_NR(cmd) != _IOC_NR(SPI_IOC_MESSAGE(0)) SPI_IOC_MESSAGE 543 drivers/spi/spidev.c && _IOC_NR(cmd) == _IOC_NR(SPI_IOC_MESSAGE(0)) SPI_IOC_MESSAGE 68 tools/spi/spidev_fdx.c status = ioctl(fd, SPI_IOC_MESSAGE(2), xfer); SPI_IOC_MESSAGE 141 tools/spi/spidev_test.c ret = ioctl(fd, SPI_IOC_MESSAGE(1), &tr);