From e5f330c482034b84f4c7ae2b8f3465f3c9863fb7 Mon Sep 17 00:00:00 2001
From: Bin Meng <bmeng.cn@gmail.com>
Date: Thu, 12 Nov 2015 05:33:04 -0800
Subject: [PATCH] input: Ban digit numbers if 'Num Lock' is not on
When 'Num Lock' is not on, we should not send these digit numbers
(0-9 and dot) to the output buffer.
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
---
drivers/input/input.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/input/input.c b/drivers/input/input.c
index 526769692b..a39db3cc9c 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -479,6 +479,12 @@ static int input_keycodes_to_ascii(struct input_config *config,
if ((config->flags & FLAG_CAPS_LOCK) &&
ch >= 'a' && ch <= 'z')
ch -= 'a' - 'A';
+ /* ban digit numbers if 'Num Lock' is not on */
+ if (!(config->flags & FLAG_NUM_LOCK)) {
+ if (key >= KEY_KP7 && key <= KEY_KPDOT &&
+ key != KEY_KPMINUS && key != KEY_KPPLUS)
+ ch = 0xff;
+ }
if (ch_count < max_chars && ch != 0xff)
output_ch[ch_count++] = (uchar)ch;
} else {
--
2.39.5