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docs: gpio: note lineinfo padding must be zero filled

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GPIO_V2_GET_LINEINFO_IOCTL and GPIO_V2_GET_LINEINFO_WATCH_IOCTL reject
non-zero lineinfo.padding with -EINVAL; align the uapi comment with
gpio_v2_line_request.padding.

Signed-off-by: Iván Ezequiel Rodriguez <ivanrwcm25@gmail.com>
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260831143125.151360-4-ivanrwcm25@gmail.com>
This commit is contained in:
Iván Ezequiel Rodriguez 2026-08-31 11:31:21 -03:00 committed by Jonathan Corbet
parent 2ef355c4e6
commit f0756b6ebd
1 changed files with 1 additions and 1 deletions
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2
include/uapi/linux/gpio.h
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@ -218,7 +218,7 @@ struct gpio_v2_line_request {
* gpio_v2_line_flag, such as %GPIO_V2_LINE_FLAG_ACTIVE_LOW,
* %GPIO_V2_LINE_FLAG_OUTPUT etc, added together
* @attrs: the configuration attributes associated with the line
* @padding: reserved for future use
* @padding: reserved for future use, must be zero filled
*/
struct gpio_v2_line_info {
char name[GPIO_MAX_NAME_SIZE];