URL:
<http://savannah.gnu.org/bugs/?38242>
Summary: grub-mklayout won't handle the keys to input a
backslash character on Japanese keyboard layout
Project: GNU GRUB
Submitted by: moritasho
Submitted on: 2013年02月04日 10時49分36秒
Category: Terminal
Severity: Major
Priority: 5 - Normal
Item Group: Software Error
Status: None
Privacy: Public
Assigned to: None
Originator Name:
Originator Email:
Open/Closed: Open
Discussion Lock: Any
Release:
Release: Bazaar - trunk
Reproducibility: Every Time
Planned Release: None
_______________________________________________________
Details:
Hi,
I noticed that grub-mklayout rejects the keys to input a backslash on Japanese
keyboard layout.
Executing grub-mklayout for Japanese keymap will outputs the following
message:
% ckbcomp jp | grub-mklayout -o /dev/null
Unknown keycode 0x54
Unknown keycode 0x65
Unknown keycode 0x7f
Unknown keycode 0x7c <==
Unknown keycode 0x79
Unknown keycode 0x59 <==
The keys 0x7c(124) and 0x59(89) are necessary to input a backslash character
on Japanese keyboard layout.
The output of ckbcomp for these keys are as follow:
% ckbcomp jp | grep '124\|89'
keycode 124 = U+005c U+007c U+005c U+007c ...
keycode 89 = U+005c U+005f U+005c U+005f ...
Here is the information about these keys:
Linux keycode: 0x59(89), defined as KEY_RO in include/uapi/linux/input.h
AT Set 1 Scancode: 0x73
AT Set 2 Scancode: 0x51
USB Usage ID: 0x87, Keyboard International1
Linux keycode: 0x7C(124), defined as KEY_YEN in include/uapi/linux/input.h
AT Set 1 Scancode: 0x7D
AT Set 2 Scancode: 0x6A
USB Usage ID: 0x89, Keyboard International3
References:
* Key Layout and Scancodes
<http://hp.vector.co.jp/authors/VA003720/lpproj/others/kbdjpn.htm>
* Universal Serial Bus HID Usage Tables: 10 Keyboard/Keypad Page
<http://www.usb.org/developers/devclass_docs/Hut1_12v2.pdf>
I think some modifications to util/grub-mklayout.c,
grub-core/term/at_keyboard.c and include/grub/keyboard_layouts.h is needed to
add support for those keys. I made and attached a patch. But I'm afraid for
that this patch might breaks backward compatibility as it changes the value of
GRUB_KEYBOARD_LAYOUTS_ARRAY_SIZE...
Regards,
_______________________________________________________
File Attachments:
-------------------------------------------------------
Date: 2013年02月04日 10時49分36秒 Name: patch Size: 4kB By:
moritasho
<http://savannah.gnu.org/bugs/download.php?file_id=27377>
_______________________________________________________
Reply to this item at:
<http://savannah.gnu.org/bugs/?38242>
_______________________________________________
Message sent via/by Savannah
http://savannah.gnu.org/
_______________________________________________
Bug-grub mailing list
Bug-grub@gnu.org
https://lists.gnu.org/mailman/listinfo/bug-grub
