[PATCH] pckeyb legacy free option vs kbd_controller_present() ( Yet Another Patch)

From: Isabelle, Francois
Date: Wed Jun 21 2006 - 16:08:00 EST


There is already some patches for this feature (see http://lkml.org/lkml/2002/12/4/162)
This one has the benefit of not being "CONFIG" time, but rather "BOOT" time using pc_keyb=off.



--- /usr/src/linux-2.4.32/drivers/char/pc_keyb.c Thu Nov 28 18:53:12 2002
+++ /usr/src/linux-2.4.32-82571ACPI/drivers/char/pc_keyb.c Wed Jun 21 16:01:42 2006
@@ -13,6 +13,8 @@
* Code fixes to handle mouse ACKs properly.
* C. Scott Ananian <cananian@xxxxxxxxxxxxxxxxxxxx> 1999-01-29.
*
+ * Added pc_keyb setup option to avoid boot delays on legacy free PCs
+ * Francois Isabelle <isabellf@xxxxxxxxxxxx> 2006-06-21
*/

#include <linux/config.h>
@@ -48,6 +50,11 @@

#include <linux/pc_keyb.h>

+unsigned int pc_keyb_probe=1;
+
+static int __devinit pc_keyb_setup(char *str);
+
+
/* Simple translation table for the SysRq keys */

#ifdef CONFIG_MAGIC_SYSRQ
@@ -801,6 +810,18 @@
}
#endif /* CONFIG_PSMOUSE */

+
+static int __devinit pc_keyb_setup(char *str)
+{
+ if (!strcmp(str, "off")) {
+ pc_keyb_probe = 0;
+ return 0;
+ }
+ return 1;
+}
+
+__setup("pc_keyb=", pc_keyb_setup);
+
static char * __init initialize_kbd(void)
{
int status;
@@ -898,6 +919,11 @@

void __init pckbd_init_hw(void)
{
+ if(!pc_keyb_probe ){
+ kbd_exists = 0;
+ return;
+ }
+
if (!kbd_controller_present()) {
kbd_exists = 0;
return;

Francois Isabelle

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/