Only in sys/dev/smbus: lmc-smbus.c
diff -r -u /home/ctm/src/sys/dev/smbus/smb.c sys/dev/smbus/smb.c
--- /home/ctm/src/sys/dev/smbus/smb.c	Tue May 11 10:23:12 1999
+++ sys/dev/smbus/smb.c	Wed May 12 10:01:03 1999
@@ -105,7 +105,7 @@
 smb_probe(device_t dev)
 {
 	struct smb_softc *sc = (struct smb_softc *)device_get_softc(dev);
-
+	device_set_desc(dev,"SMBus General purpose I/O");
 	sc->sc_addr = smbus_get_addr(dev);
 
 	/* XXX detect chip with start/stop conditions */
@@ -126,7 +126,9 @@
 smbopen (dev_t dev, int flags, int fmt, struct proc *p)
 {
 	struct smb_softc *sc = IIC_SOFTC(minor(dev));
-
+	/*This device is as dangerous as PIO*/
+	if(suser(p))
+	         return (EPERM);
 	if (!sc)
 		return (EINVAL);
 
Only in sys/dev/smbus: smb.c~
diff -r -u /home/ctm/src/sys/dev/smbus/smbconf.c sys/dev/smbus/smbconf.c
--- /home/ctm/src/sys/dev/smbus/smbconf.c	Wed Feb 17 02:17:35 1999
+++ sys/dev/smbus/smbconf.c	Wed May 12 08:59:03 1999
@@ -36,7 +36,7 @@
 #include <dev/smbus/smbconf.h>
 #include <dev/smbus/smbus.h>
 #include "smbus_if.h"
-
+#include "smbus.h"
 /*
  * smbus_intr()
  */
@@ -86,16 +86,48 @@
  * Allocate a new bus connected to the given parent device
  */
 device_t
-smbus_alloc_bus(device_t parent)
+smbus_alloc_bus_unit(device_t parent,int unit)
 {
 	device_t child;
-
 	/* add the bus to the parent */
-	child = device_add_child(parent, "smbus", -1, NULL);
+	child = device_add_child(parent, "smbus", unit, NULL);
 
 	return (child);
 }
-
+device_t
+smbus_alloc_bus(device_t parent)
+{
+       int i;
+       char *value,*parent_name;
+       static char namebuf[32]="";
+       int unit=-1,parentunit;
+       parent_name=devclass_get_name(device_get_devclass(parent));
+       parentunit=device_get_unit(parent);
+       /*translate internal name to name appear in resource*/
+       if(strcmp(parent_name,"intsmb")==0){
+	 parent_name="intpm";
+       }
+       if(strcmp(parent_name,"bti2c")==0){
+	 parent_name="bktr";
+       }
+
+       /*Too long devclass name,so ignore locator*/	 
+       if(strlen(parent_name)>20){
+         printf("smbus_alloc_bus:too long parent name so ignore locator");
+       }else{
+	 sprintf(namebuf,"%s%d",parent_name,parentunit);
+       }
+       for(i=0;i<NSMBUS;i++){
+	 if(resource_string_value("smbus",i,"at",&value)){
+	   continue;
+	 }
+	 if(strcmp(value,namebuf)==0){
+	   unit=i;
+	   break;
+	 }
+       }
+       return smbus_alloc_bus_unit(parent,unit);
+}
 static int
 smbus_poll(struct smbus_softc *sc, int how)
 {
diff -r -u /home/ctm/src/sys/dev/smbus/smbconf.h sys/dev/smbus/smbconf.h
--- /home/ctm/src/sys/dev/smbus/smbconf.h	Wed Feb 17 02:17:35 1999
+++ sys/dev/smbus/smbconf.h	Wed May 12 08:22:39 1999
@@ -74,6 +74,7 @@
 extern int smbus_request_bus(device_t, device_t, int);
 extern int smbus_release_bus(device_t, device_t);
 extern device_t smbus_alloc_bus(device_t);
+extern device_t smbus_alloc_bus_unit(device_t,int);
 extern int smbus_error(int error);
 
 extern void smbus_intr(device_t, u_char, char low, char high, int error);
diff -r -u /home/ctm/src/sys/dev/smbus/smbus.c sys/dev/smbus/smbus.c
--- /home/ctm/src/sys/dev/smbus/smbus.c	Tue May 11 10:23:03 1999
+++ sys/dev/smbus/smbus.c	Wed May 12 09:30:20 1999
@@ -41,22 +41,6 @@
 
 #define DEVTOSMBUS(dev) ((struct smbus_device*)device_get_ivars(dev))
 
-/*
- * structure used to attach devices to the I2C bus
- */
-struct smbus_device {
-	const char *smbd_name;		/* device name */
-	const char *smbd_desc;		/* device descriptor */
-};
-
-/*
- * list of known devices
- */
-struct smbus_device smbus_children[] = {
-	{ "smb", "SMBus general purpose I/O" },
-	{ NULL, 0 }
-};
-
 static devclass_t smbus_devclass;
 
 /*
@@ -107,19 +91,23 @@
 static int
 smbus_attach(device_t dev)
 {
-	struct smbus_device *smbdev;
-
+        static char buf[]="smbusXXX";
+	int i;
+	sprintf(buf,"smbus%d",device_get_unit(dev));
 	/* add known devices */
-	for (smbdev = smbus_children; smbdev->smbd_name; smbdev++) {
-		device_t child;
-
-		if (devclass_find(smbdev->smbd_name)) {
-			child = device_add_child(dev, smbdev->smbd_name,
-								-1, smbdev);
-			device_set_desc(child, smbdev->smbd_desc);
-		} else if (bootverbose)
-			printf("smbus: %s devclass not found\n",
-				smbdev->smbd_name);
+	for (i = resource_query_string(-1,"at",buf);
+	     i!=-1; 
+	     i=resource_query_string(i,"at",buf)) {
+	  device_t child;
+	  child = device_add_child(dev, resource_query_name(i),
+				   resource_query_unit(i), 0);
+	}
+	for (i = resource_query_string(-1,"at","smbus");
+	     i!=-1; 
+	     i=resource_query_string(i,"at","smbus")) {
+	  device_t child;
+	  child = device_add_child(dev, resource_query_name(i),
+				   resource_query_unit(i), 0);
 	}
 	bus_generic_attach(dev);