At least for me it is difficult to remember the meaning of GPIO direction values. Define GPIO_IN and GPIO_OUT so that occasional GPIO contributors would not need to always check the meaning of hard coded values 1 and 0. Signed-off-by: Matti Vaittinen <matti.vaittinen@xxxxxxxxxxxxxxxxx> --- Changes since v2 - new patch include/linux/gpio/driver.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h index 5dd9c982e2cb..e83d3f519507 100644 --- a/include/linux/gpio/driver.h +++ b/include/linux/gpio/driver.h @@ -22,6 +22,9 @@ enum gpio_lookup_flags; struct gpio_chip; +#define GPIO_IN 1 +#define GPIO_OUT 0 + /** * struct gpio_irq_chip - GPIO interrupt controller */ -- 2.21.0 -- Matti Vaittinen, Linux device drivers ROHM Semiconductors, Finland SWDC Kiviharjunlenkki 1E 90220 OULU FINLAND ~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~ Simon says - in Latin please. ~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~ Thanks to Simon Glass for the translation =]