package/boot/uboot-mediatek/patches/006-cmd-button-return-button-status.patch

   1 From a6bfd71a96201127836d59736abcb54dc2d5e1a5 Mon Sep 17 00:00:00 2001
   2 From: Heinrich Schuchardt <xypron.glpk@gmx.de>
   3 Date: Mon, 14 Sep 2020 12:50:56 +0200
   4 Subject: [PATCH] cmd/button: return button status
   5
   6 To make the button command useful in a shell script it should return the
   7 status of the button:
   8
   9 * 0 (true) - pressed, on
  10 * 1 (false) - not pressed, off
  11
  12 The button command takes only one argument. Correct maxargs.
  13
  14 Adjust the Python unit test.
  15
  16 Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
  17 Reviewed-by: Philippe Reynes <philippe.reynes@softathome.com>
  18 ---
  19  cmd/button.c                 |  4 ++--
  20  test/py/tests/test_button.py | 34 ++++++++++++++++++++++++++--------
  21  2 files changed, 28 insertions(+), 10 deletions(-)
  22
  23 --- a/cmd/button.c
  24 +++ b/cmd/button.c
  25 @@ -75,11 +75,11 @@ int do_button(struct cmd_tbl *cmdtp, int
  26
  27         ret = show_button_state(dev);
  28
  29 -       return 0;
  30 +       return !ret;
  31  }
  32
  33  U_BOOT_CMD(
  34 -       button, 4, 1, do_button,
  35 +       button, 2, 1, do_button,
  36         "manage buttons",
  37         "<button_label> \tGet button state\n"
  38         "button list\t\tShow a list of buttons"