Name
spi_w8r16 —
SPI synchronous 8 bit write followed by 16 bit read
Synopsis
ssize_t spi_w8r16 ( | struct spi_device * spi, |
| u8 cmd) ; |
Arguments
spi
device with which data will be exchanged
cmd
command to be written before data is read back
Description
The number is returned in wire-order, which is at least sometimes
big-endian.
Callable only from contexts that can sleep.
Return
the (unsigned) sixteen bit number returned by the
device, or else a negative error code.