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42 lines
1.7 KiB
Diff
42 lines
1.7 KiB
Diff
From 48565c3ac763f71918f75c1f22c10a119a05f1a8 Mon Sep 17 00:00:00 2001
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From: Hans de Goede <hdegoede@redhat.com>
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Date: Tue, 26 Jun 2018 20:05:32 +0200
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Subject: [PATCH] EFI: console: Fix the "enter" key not working on X86 tablets
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Most 8" or 7" x86 Windows 10 tablets come with volume up/down buttons and
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a power-button. In their UEFI these are almost always mapped to arrow
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up/down and enter.
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Pressing the volume buttons (sometimes by accident) will stop the
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menu countdown, but the power-button / "enter" key was not being recognized
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as enter, so the user would be stuck at the grub menu.
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The problem is that these tablets send scan_code 13 or 0x0d for the
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power-button, which officialy maps to the F3 key. They also set
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unicode_char to 0x0d.
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This commit recognizes the special case of both scan_code and unicode_char
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being set to 0x0d and treats this as an enter key press.
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This fixes things getting stuck at the grub-menu and allows the user
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to choice a grub-menu entry using the buttons on the tablet.
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Signed-off-by: Hans de Goede <hdegoede@redhat.com>
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---
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grub-core/term/efi/console.c | 3 +++
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1 file changed, 3 insertions(+)
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diff --git a/grub-core/term/efi/console.c b/grub-core/term/efi/console.c
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index a5abaf8e722..59786e30d66 100644
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--- a/grub-core/term/efi/console.c
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+++ b/grub-core/term/efi/console.c
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@@ -127,6 +127,9 @@ grub_efi_translate_key (grub_efi_input_key_t key)
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else
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return key.unicode_char;
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}
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+ /* Some devices send enter with scan_code 0x0d (F3) and unicode_char 0x0d */
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+ else if (key.scan_code == '\r' && key.unicode_char == '\r')
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+ return key.unicode_char;
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else if (key.scan_code < ARRAY_SIZE (efi_codes))
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return efi_codes[key.scan_code];
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