patch worked out a while back by Erik and myself to ensure numlock is turned off
on PC keyboards at boot.

This is important for me and my small (numeric keypad free) Qtronics keyboards with
a supermicro motherboard who's BIOS doesn't have an "initial numlock status" option.

-Steve

Reference: /n/sources/patch/applied/numlock-boot
Date: Wed Jun  9 12:01:46 CES 2010
Signed-off-by: steve@quintile.net

--- /sys/src/9/pc/kbd.c	Wed Jun  9 11:52:01 2010
+++ /sys/src/9/pc/kbd.c	Wed Jun  9 11:51:58 2010
@@ -318,6 +318,26 @@
 
 Kbscan kbscans[2];	/* kernel and external scan code state */
 static int kdebug;
+
+static void
+setleds(Kbscan *kbscan)
+{
+	int leds;
+
+	leds = 0;
+	if(kbscan->num)
+		leds |= 1<<1;
+	if(0 && kbscan->caps)
+		leds |= 1<<2;
+	ilock(&i8042lock);
+	outready();
+	outb(Data, 0xed);		/* talk directly to kbd, not ctlr */
+	outready();
+	outb(Data, leds);
+	outready();
+	iunlock(&i8042lock);
+}
+
 /*
  * Scan code processing
  */
@@ -436,6 +456,8 @@
 			return;
 		case Num:
 			kbscan->num ^= 1;
+			if(!external)
+				setleds(kbscan);
 			return;
 		case Shift:
 			kbscan->shift = 1;
@@ -615,6 +637,9 @@
 	ioalloc(Cmd, 1, 0, "kbd");
 
 	intrenable(IrqKBD, i8042intr, 0, BUSUNKNOWN, "kbd");
+
+	/* clears num-lock */
+	setleds(kbscans + 0);
 }
 
 void