4 Sep
2020
4 Sep
'20
10:44 a.m.
To make the button command useful in a shell script it should return the status of the button:
- 0 (true) - pressed, on
- 1 (false) - not pressed, off
The button command takes only one argument. Correct maxargs.
Signed-off-by: Heinrich Schuchardt xypron.glpk@gmx.de
Reviewed-by: Philippe Reynes philippe.reynes@softathome.com
cmd/button.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/cmd/button.c b/cmd/button.c index 84ad1653c7..64c5a8fa04 100644 --- a/cmd/button.c +++ b/cmd/button.c @@ -75,11 +75,11 @@ int do_button(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
ret = show_button_state(dev);
- return 0;
- return !ret;
}
U_BOOT_CMD(
- button, 4, 1, do_button,
- button, 2, 1, do_button,
"manage buttons", "<button_label> \tGet button state\n" "button list\t\tShow a list of buttons" -- 2.28.0