Name

spi_read — SPI synchronous read

Synopsis

int spi_read (struct spi_device * spi,
 void * 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 function reads the buffer buf. Callable only from contexts that can sleep.

Return

zero on success, else a negative error code.