Index: acpi_asus.c
===================================================================
RCS file: /usr/repo/src/sys/dev/acpi_support/acpi_asus.c,v
retrieving revision 1.21
diff -u -p -r1.21 acpi_asus.c
--- acpi_asus.c	24 Mar 2005 21:07:55 -0000	1.21
+++ acpi_asus.c	30 Mar 2005 12:30:41 -0000
@@ -46,6 +46,7 @@ __FBSDID("$FreeBSD: src/sys/dev/acpi_sup
 #include <sys/module.h>
 #include <sys/bus.h>
 #include <sys/sbuf.h>
+#include <sys/taskqueue.h>
 
 #include "acpi.h"
 #include <dev/acpica/acpivar.h>
@@ -105,6 +106,14 @@ struct acpi_asus_softc {
 	int			s_lcd;
 };
 
+static struct acpi_asus_led_info {
+	struct acpi_asus_softc *sc;
+	char		*method;
+	int		 state;
+	struct task	 task;
+	int		 busy;
+} acpi_asus_led_ctx;
+
 /*
  * We can identify Asus laptops from the string they return
  * as a result of calling the ATK0100 'INIT' method.
@@ -400,6 +409,7 @@ acpi_asus_attach(device_t dev)
 	}
 
 	/* Attach leds */
+	acpi_asus_led_ctx.busy = 0;
 	if (sc->model->mled_set) {
 		sc->s_mled.dev = dev;
 		sc->s_mled.type = ACPI_ASUS_LED_MLED;
@@ -461,6 +471,20 @@ acpi_asus_detach(device_t dev)
 }
 
 static void
+acpi_asus_led_task(void *ctx __unused, int pending __unused)
+{
+	struct acpi_asus_softc *sc;
+	char *method;
+	int state;
+
+	sc = acpi_asus_led_ctx.sc;
+	method = acpi_asus_led_ctx.method;
+	state = acpi_asus_led_ctx.state;
+	acpi_SetInteger(sc->handle, method, state);
+	acpi_asus_led_ctx.busy = 0;
+}
+
+static void
 acpi_asus_led(struct acpi_asus_led *led, int state)
 {
 	struct acpi_asus_softc	*sc;
@@ -489,7 +513,14 @@ acpi_asus_led(struct acpi_asus_led *led,
 		return;
 	}
 
-	acpi_SetInteger(sc->handle, method, state);
+	if (acpi_asus_led_ctx.busy)
+		return;
+	acpi_asus_led_ctx.sc = sc;
+	acpi_asus_led_ctx.method = method;
+	acpi_asus_led_ctx.state = state;
+	acpi_asus_led_ctx.busy = 1;
+	TASK_INIT(&acpi_asus_led_ctx.task, 0, acpi_asus_led_task, NULL);
+	taskqueue_enqueue(taskqueue_swi, &acpi_asus_led_ctx.task);
 }
 
 static int