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fuchsia / fuchsia / refs/heads/main / . / src / devices / spi / bin / spiutil
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  1. BUILD.gn
  2. METADATA.textproto
  3. README.md
  4. spiutil.cc
src/devices/spi/bin/spiutil/README.md

SPI bus utility

  1. spiutil DEVICE r LENGTH

    Read LENGTH bytes from the specified devfs node. Output will be on the console in hexdump format.

  2. spiutil DEVICE w BYTES ...

    Write BYTES to the SPI bus represented by the specified devfs node.

  3. spiutil DEVICE x BYTES ...

    Perform a full-duplex SPI exchange on the SPI bus represented by the specified devfs node. Transmitted data as w option above, output as r option.