| SPI_W8R16(9) | Serial Peripheral Interface (S | SPI_W8R16(9) |
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
CONTEXT¶
can sleep
DESCRIPTION¶
This returns the (unsigned) sixteen bit number returned by the device, or else a negative error code. Callable only from contexts that can sleep.
The number is returned in wire-order, which is at least sometimes big-endian.
COPYRIGHT¶
| June 2024 | Kernel Hackers Manual 3.10 |