Messages in this thread Patch in this message | | | Date | Tue, 5 Nov 2019 12:09:37 +0200 | From | Matti Vaittinen <> | Subject | [PATCH 01/62] gpio: Add definition for GPIO direction |
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At least for me it is difficult to remember the meaning of GPIO direction values. Define GPIO_LINE_DIRECTION_IN and GPIO_LINE_DIRECTION_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@fi.rohmeurope.com> --- 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..cc9ade4552d9 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_LINE_DIRECTION_IN 1 +#define GPIO_LINE_DIRECTION_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 =]
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