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feat(gpio): Add 595 shift register driver.

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* Use SPI for sending serial data.
* Supports 1-4 shift registers chained together by
  setting `ngios` property appropriately.
This commit is contained in:
Peter Johanson
2022-06-03 03:25:59 +00:00
committed by Pete Johanson
parent 8e67524e62
commit 6a86cd0547
5 changed files with 274 additions and 1 deletions
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2
app/drivers/gpio/CMakeLists.txt
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@@ -4,5 +4,5 @@
zephyr_library_named(zmk__drivers__gpio)
zephyr_library_include_directories(${CMAKE_SOURCE_DIR}/include)
zephyr_library_sources_ifdef(CONFIG_GPIO_595 gpio_595.c)
zephyr_library_sources_ifdef(CONFIG_GPIO_MCP23017 gpio_mcp23017.c)
zephyr_library_sources_ifndef(CONFIG_GPIO_MCP23017 ${ZEPHYR_BASE}/misc/empty_file.c)