spi_w8r16be — SPI synchronous 8 bit write followed by 16 bit big-endian read
ssize_t spi_w8r16be ( | struct spi_device * spi, |
u8 cmd); |
spidevice with which data will be exchanged
cmdcommand to be written before data is read back
This returns the (unsigned) sixteen bit number returned by the device in cpu endianness, or else a negative error code. Callable only from contexts that can sleep.
This function is similar to spi_w8r16, with the exception that it will convert the read 16 bit data word from big-endian to native endianness.