Function i2c_transfer

src/include/device/i2c_simple.h:42–50

* software_i2c is supposed to be a debug feature. It's usually not compiled in, * but when it is it can be dynamically enabled at runtime for certain buses. * Need this ugly stub to arbitrate since I2C device drivers hardcode * 'i2c_transfer()' as their entry point. */

 * 'i2c_transfer()' as their entry point.
 */
static inline int i2c_transfer(unsigned int bus, struct i2c_msg *segments,
			       int count)
{
	if (CONFIG(SOFTWARE_I2C))
		if (bus < SOFTWARE_I2C_MAX_BUS && software_i2c[bus])
			return software_i2c_transfer(bus, segments, count);

	return platform_i2c_transfer(bus, segments, count);
}

/*
 * Read a raw chunk of data in one segment and one frame.