ChuanN-sudo/u-boot
1
0
Fork 0
forked from OERV-BSP/u-boot
Code Pull Requests Activity

doc: usage: Add general rule for $?

Browse Source 
For nearly all commands in U-Boot the '?' variable is handled the same
way with 0 meaning success, 1 meaning any failure.  Explain this in the
general rules section of the cmdline documentation (with a link to a
counter example) and then remove the redundant wording from most
commands. We retain a section about the return value in a number of
places where we are doing something such as always returning a specific
value or we have useful additional information to go along with the
normal return codes.

Signed-off-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
This commit is contained in:
Tom Rini
2025-10-24 10:02:57 -06:00
parent 1f6da608c3
commit 11da3403e9
45 changed files with 6 additions and 245 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
doc/usage/cmd/gpio.rst
View File

@@ -127,9 +127,3 @@ Configuration
The *gpio* command is only available if CONFIG_CMD_GPIO=y.
The *gpio read* command is only available if CONFIG_CMD_GPIO_READ=y.
Return value
------------
If the command succeds the return value $? is set to 0. If an error occurs, the
return value $? is set to 1.