cx25821_set_gpiopin_direction
cx25821_set_gpiopin_direction(chip->dev, 0, 0);
EXPORT_SYMBOL(cx25821_set_gpiopin_direction);
cx25821_set_gpiopin_direction(dev, pin_number, 0);
extern void cx25821_set_gpiopin_direction(struct cx25821_dev *dev,