1. 1bb6f9b0 mcp23s08: get rid of setup/teardown callbacks by Peter Korsgaard · 13 years ago
  2. 0b7bb77 gpio/mcp23s08: support mcp23s17 variant by Peter Korsgaard · 14 years ago
  3. 8f1cc3b gpio: mcp23s08 handles multiple chips per chipselect by David Brownell · 16 years ago
  4. e58b9e2 mcp23s08 spi gpio expander support by David Brownell · 17 years ago