Microchip MCP23S08 I/O expander
modulename: mcp23s08.ko
and/orgpio-mcp23s08.ko
configname: CONFIG_GPIO_MCP23S08
Linux Kernel Configuration
└─>Device Drivers
└─>GPIO Support
└─>Microchip MCP23S08 I/O expander
In linux kernel since version 2.6.25 (release Date: 2008-04-16)
SPI driver for Microchip MCP23S08 I/O expander. This provides
a GPIO interface supporting inputs and outputs.
a GPIO interface supporting inputs and outputs.
source code:
depends
CONFIG_HAVE_GPIO_LIBCONFIG_SPI_MASTER or CONFIG_GPIOLIB or CONFIG_I2C or CONFIG_SPI_MASTER or CONFIG_SPI_MASTER or NOT CONFIG_I2C