Hannu Hartikainen f3f1017a98 docs: gpio: explain GPIOD_OUT_* values and toggling active low ...

I was confused about the gpiod_flags values and thought that
GPIOD_OUT_LOW and GPIOD_OUT_HIGH set the line to be active low / active
high. This is not true, but I got the misconception because the flags
GPIOD_OUT_*_OPEN_DRAIN do change line configuration and there's a
subchapter about *active low* and *open drain* semantics.

Add an explicit mention that the initial value is a logical value (and
not the line configuration or physical line level). Also add a mention
of the function gpiod_toggle_active_low which was previously missing
from this document.

Signed-off-by: Hannu Hartikainen <[email protected]>
Signed-off-by: Bartosz Golaszewski <[email protected]>

2021-07-21 15:21:36 +02:00

..

board.rst

gpiolib: Add support for GPIO lookup by line name

2020-05-18 10:12:42 +02:00

bt8xxgpio.rst

…

consumer.rst

docs: gpio: explain GPIOD_OUT_* values and toggling active low

2021-07-21 15:21:36 +02:00

driver.rst

Documentation: gpio: driver.rst: Remove gpiochip_irqchip_add mention

2021-07-21 15:17:53 +02:00

drivers-on-gpio.rst

gpio: Mention GPIO MUX in docs

2021-03-26 14:56:19 +01:00

index.rst

…

intro.rst

Documentation: gpio: chip should be plural

2021-03-25 11:41:37 -06:00

legacy.rst

Documentation: rename pinctl to pin-control

2021-03-10 14:41:58 +01:00

using-gpio.rst

docs: driver-api: gpio: using-gpio.rst: avoid using ReST :doc:foo markup

2021-06-17 13:24:37 -06:00