spi_read(9) 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 reads the buffer and returns zero or a negative error code. Callable only from contexts that can sleep.

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