spi-io

Documentation

Overview

spi-io writes to an SPI port data from stdin and outputs to stdout or writes arguments and outputs hex encoded output.

Usage:

echo -n -e '\x88\x00' | spi-io -b SPI0.0 | hexdump
spi-io -b SPI0.0 0x88 0

For "read only" operation, writes zeros. For "write only" operation, ignore stdout.