bybrooklyn/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-04-18 23:03:57 -04:00
Code Issues Packages Projects Releases Wiki Activity

Documentation: gpio: describe uAPI behaviour for unsupported config

Browse Source 
The existing uAPI documentation does not adequately describe how the kernel
handles the case where the underlying hardware or driver does not support
the requested configuration.

Add a Configuration Support section describing that behaviour to both the
v1 and v2 documentation, and better document the errors returned where the
requested configuration cannot be supported.

Signed-off-by: Kent Gibson <warthog618@gmail.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
This commit is contained in:
Kent Gibson
2024-01-23 21:38:28 +08:00
committed by Bartosz Golaszewski
parent 3473765920
commit 42969726a1
6 changed files with 106 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
Documentation/userspace-api/gpio/gpio-v2-line-set-config-ioctl.rst
View File

@@ -37,7 +37,8 @@ line or introducing potential glitches.
The new configuration must specify the configuration of all requested lines.
The same :ref:`gpio-v2-get-line-config-rules` that apply when requesting the lines
The same :ref:`gpio-v2-get-line-config-rules` and
:ref:`gpio-v2-get-line-config-support` that apply when requesting the lines
also apply when updating the line configuration.
The motivating use case for this command is changing direction of