I2C_SDA 367 arch/arm/mach-omap1/include/mach/mux.h I2C_SDA, I2C_SDA 26 drivers/i2c/busses/i2c-via.c #define I2C_SDA 0x04 I2C_SDA 45 drivers/pinctrl/freescale/pinctrl-imx23.c I2C_SDA = PINID(0, 31),