In many cases, one prefers to have e.g. the NumLock on by default. In
many cases, one doesn't want to have it by default, e.g. on laptops.
Distributions actually have a very hard time trying to set this
correctly after the kernel boot, and that doesn't work for new consoles
that are created via the openvt(1) command anyway. This hence adds a
keyboard.default_leds boot parameter that permits to configure the
default keyboard LEDs.
Signed-off-by: Samuel Thibault <samuel.thibault@xxxxxxxxxxxx>
---
Actually, what would be perfect would be to use the configuration that
the BIOS sets at boot by default. That is device-dependent, however.
--- linux/drivers/char/keyboard.c.orig 2008-01-14 00:26:12.000000000 +0000
+++ linux/drivers/char/keyboard.c 2008-01-14 00:33:03.000000000 +0000
@@ -67,6 +67,9 @@
#define KBD_DEFLOCK 0
+unsigned char default_leds = KBD_DEFLEDS;
+module_param(default_leds, byte, S_IRUGO | S_IWUSR);
+
void compute_shiftstate(void);
/*
@@ -1405,8 +1408,8 @@
int error;
for (i = 0; i < MAX_NR_CONSOLES; i++) {
- kbd_table[i].ledflagstate = KBD_DEFLEDS;
- kbd_table[i].default_ledflagstate = KBD_DEFLEDS;
+ kbd_table[i].ledflagstate = default_leds;
+ kbd_table[i].default_ledflagstate = default_leds;
kbd_table[i].ledmode = LED_SHOW_FLAGS;
kbd_table[i].lockstate = KBD_DEFLOCK;
kbd_table[i].slockstate = 0;
--- linux/include/linux/kbd_kern.h.orig 2008-01-14 00:32:36.000000000 +0000
+++ linux/include/linux/kbd_kern.h 2008-01-14 00:32:48.000000000 +0000
@@ -13,6 +13,7 @@
extern char func_buf[];
extern char *funcbufptr;
extern int funcbufsize, funcbufleft;
+extern unsigned char default_leds;
/*
* kbd->xxx contains the VC-local things (flag settings etc..)
--- linux/Documentation/kernel-parameters.txt.orig 2008-01-14 00:38:40.000000000 +0000
+++ linux/Documentation/kernel-parameters.txt 2008-01-14 00:41:21.000000000 +0000
@@ -550,6 +550,15 @@
Set system-wide default UTF-8 mode for all tty's.
Default is 0 and by setting to 1, it enables UTF-8
mode for all newly opened or allocated terminals.
+
+ keyboard.default_leds=
+ [KEYBOARD]
+ Format=<ledmask>
+ Mask of the leds to activate on consoles by default.
+ ScrollLock: 1
+ NumLock: 2
+ CapsLock: 4
+ KanaLock: 8
dhash_entries= [KNL]
Set number of hash buckets for dentry cache.
-
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