diff options
| author | Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> | 2019-11-06 10:51:47 +0200 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2019-11-07 09:19:39 +0100 |
| commit | 9208b1e77d6e8e9776f34f46ef4079ecac9c3c25 (patch) | |
| tree | b7709295d8d0bdbfce5435dfed75cd345dc584f8 /include/linux/gpio | |
| parent | 5d682fa3d8943c19a632ebeaf70e8b9e41c78a5b (diff) | |
| download | linux-9208b1e77d6e8e9776f34f46ef4079ecac9c3c25.tar.gz linux-9208b1e77d6e8e9776f34f46ef4079ecac9c3c25.tar.bz2 linux-9208b1e77d6e8e9776f34f46ef4079ecac9c3c25.zip | |
gpio: Add definition for GPIO direction
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>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'include/linux/gpio')
| -rw-r--r-- | include/linux/gpio/driver.h | 3 |
1 files changed, 3 insertions, 0 deletions
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 */ |