Index: tools/makeobjops.awk
===================================================================
--- tools/makeobjops.awk	(revision 230401)
+++ tools/makeobjops.awk	(working copy)
@@ -192,7 +192,7 @@
 #   Handle "METHOD" and "STATICMETHOD" sections.
 #
 
-function handle_method (static, doc)
+function handle_method (static, api, doc)
 {
 	#
 	#   Get the return type and function name and delete that from
@@ -204,6 +204,8 @@
 		error = 1;
 		return;
 	}
+	if (api)
+		needs_apicheck = 1;
 	sub(/^[^ 	]+[ 	]+/, "");
 	ret = $0;
 	sub(/[ 	]*\{.*$/, "", ret);
@@ -305,7 +307,35 @@
 	prototype = "typedef " ret " " mname "_t(";
 	printh(format_line(prototype argument_list ");",
 	    line_width, length(prototype)));
+	# API function
+	if (api) {
+		delete api_arguments
+		delete api_varnames
+		api_varnames[1] = "_provider";
+		for (i = 2; i <= num_arguments; i++) {
+			api_arguments[i-1] = arguments[i];
+			api_varnames[i] = varnames[i];
+		}
+		api_argument_list = join(", ", api_arguments, num_arguments - 1);
+		api_varname_list = join(", ", api_varnames, num_varnames);
 
+		if (opt_d) {
+			warn("API Arguments: " api_argument_list);
+			warn("API Varnames: " api_varname_list);
+		}
+
+		printh("/** @brief An exported API function for " umname "() method */");
+		printh(ret " " mname "(" api_argument_list ");");
+
+		# Implementation 
+		printc(ret " " mname "(" api_argument_list ")");
+		printc("{");
+		printc("\tdevice_t _provider = devclass_get_device(devclass_find(\"" intname "\"), 0);") 
+		retrn =  (ret != "void") ? "return " : "";
+		printc("\t" retrn umname"(" api_varname_list ");");
+		printc("}\n");
+	}
+
 	# Print out the method desc
 	printc("struct kobjop_desc " mname "_desc = {");
 	printc("\t0, { &" mname "_desc, (kobjop_t)" default_function " }");
@@ -469,11 +499,16 @@
 		else if (/^HEADER[	 ]*{$/)
 			printh(handle_code());
 		else if (/^METHOD/) {
-			handle_method(0, lastdoc);
+			handle_method(0, 0, lastdoc);
 			lastdoc = "";
-		} else if (/^STATICMETHOD/) {
-			handle_method(1, lastdoc);
+		} 
+		else if (/^APIMETHOD/) {
+			handle_method(0, 1, lastdoc);
 			lastdoc = "";
+		} 
+		else if (/^STATICMETHOD/) {
+			handle_method(1, 0, lastdoc);
+			lastdoc = "";
 		} else {
 			debug($0);
 			warnsrc("Invalid line encountered");
@@ -481,6 +516,14 @@
 		}
 	}
 
+	if (needs_apicheck) {
+		printh("int " intname "_available(void);");
+		printc("int " intname "_available(void)");
+		printc("{");
+		printc("\treturn (devclass_get_device(devclass_find(\"" intname "\"), 0) != NULL);");
+		printc("}");
+	}
+
 	#
 	#   Print the final '#endif' in the header file.
 	#
Index: dev/gpio/gpio_if.m
===================================================================
--- dev/gpio/gpio_if.m	(revision 230401)
+++ dev/gpio/gpio_if.m	(working copy)
@@ -34,7 +34,7 @@
 #
 # Get total number of pins
 #
-METHOD int pin_max {
+APIMETHOD int pin_max {
 	device_t dev;
 	int *npins;
 };
@@ -42,7 +42,7 @@
 #
 # Set value of pin specifed by pin_num 
 #
-METHOD int pin_set {
+APIMETHOD int pin_set {
 	device_t dev;
 	uint32_t pin_num;
 	uint32_t pin_value;
@@ -51,7 +51,7 @@
 #
 # Get value of pin specifed by pin_num 
 #
-METHOD int pin_get {
+APIMETHOD int pin_get {
 	device_t dev;
 	uint32_t pin_num;
 	uint32_t *pin_value;
@@ -60,7 +60,7 @@
 #
 # Toggle value of pin specifed by pin_num 
 #
-METHOD int pin_toggle {
+APIMETHOD int pin_toggle {
 	device_t dev;
 	uint32_t pin_num;
 };
@@ -68,7 +68,7 @@
 #
 # Get pin capabilities
 #
-METHOD int pin_getcaps {
+APIMETHOD int pin_getcaps {
 	device_t dev;
 	uint32_t pin_num;
 	uint32_t *caps;
@@ -77,7 +77,7 @@
 #
 # Get pin flags
 #
-METHOD int pin_getflags {
+APIMETHOD int pin_getflags {
 	device_t dev;
 	uint32_t pin_num;
 	uint32_t *flags;
@@ -86,7 +86,7 @@
 #
 # Get pin name
 #
-METHOD int pin_getname {
+APIMETHOD int pin_getname {
 	device_t dev;
 	uint32_t pin_num;
 	char *name;
@@ -95,7 +95,7 @@
 #
 # Set current configuration and capabilities
 #
-METHOD int pin_setflags {
+APIMETHOD int pin_setflags {
 	device_t dev;
 	uint32_t pin_num;
 	uint32_t flags;