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documentation: Format button_dev as a pointer. 

The docs on creating an input device driver have an example in which
button_dev is a pointer to an input_dev struct. However, in two code
snippets below, button_dev is used as if it is not a pointer. Make these
occurrences of button_dev reflect that it is a pointer.

Signed-off-by: Nelson Penn <nelsonapenn@protonmail.com>
Link: https://lore.kernel.org/r/20220522194953.12097-1-nelsonapenn@protonmail.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Nelson Penn 2022-05-22 19:50:38 +00:00 committed by Jonathan Corbet
parent 6199e138fe
commit a27e51b45e
1 changed files with 3 additions and 3 deletions
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6
Documentation/input/input-programming.rst
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@ -85,15 +85,15 @@ accepted by this input device. Our example device can only generate EV_KEY
type events, and from those only BTN_0 event code. Thus we only set these type events, and from those only BTN_0 event code. Thus we only set these
two bits. We could have used:: two bits. We could have used::
set_bit(EV_KEY, button_dev.evbit); set_bit(EV_KEY, button_dev->evbit);
set_bit(BTN_0, button_dev.keybit); set_bit(BTN_0, button_dev->keybit);
as well, but with more than single bits the first approach tends to be as well, but with more than single bits the first approach tends to be
shorter. shorter.
Then the example driver registers the input device structure by calling:: Then the example driver registers the input device structure by calling::
input_register_device(&button_dev); input_register_device(button_dev);
This adds the button_dev structure to linked lists of the input driver and This adds the button_dev structure to linked lists of the input driver and
calls device handler modules _connect functions to tell them a new input calls device handler modules _connect functions to tell them a new input