spi_read(9)
NAME
spi_read - SPI synchronous read
SYNOPSIS
int spi_read(struct spi_device * spi, u8 * buf, size_t len);
ARGUMENTS
- spi
- device from which data will be read
- buf
- data buffer
- len
- data buffer size
CONTEXT
can sleep
DESCRIPTION
This reads the buffer and returns zero or a negative error code.
Callable only from contexts that can sleep.