Component Type: kbuild config

Description: GPIO-based bitbanging SPI Master

More info: This simple GPIO bitbanging SPI master uses the arch-neutral GPIO interface to manage MOSI, MISO, SCK, and chipselect signals. SPI slaves connected to a bus using this driver are configured as usual, except that the spi_board_info.controller_data holds the GPIO number for the chipselect used by this controller driver. Note that this driver often won't achieve even 1 Mbit/sec speeds, making it unusually slow for SPI. If your platform can inline GPIO operations, you should be able to leverage that for better speed with a custom version of this driver; see the source code.

Build project: Kconfig (Linux kconfig) (Path: drivers\spi\Kconfig )

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