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SPI_READ(9) Serial Peripheral Interface (S SPI_READ(9)

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

COPYRIGHT

May 2018 Kernel Hackers Manual 3.16