# HG changeset patch
# User Thinker K.F. Li <thinker@branda.to>
# Date 1215491489 -28800
# Node ID e59963b503cbdc336b10e84e83cedb496aa6738b
# Parent  5fa5e5199d1a1ffbb0c38fa208e2eb96e20222ad
Remove tedious messages.

diff -r 5fa5e5199d1a -r e59963b503cb vordog.c
--- a/vordog.c	Tue Jul 08 12:21:12 2008 +0800
+++ b/vordog.c	Tue Jul 08 12:31:29 2008 +0800
@@ -57,7 +57,6 @@
 vordog_open(struct cdev *dev, int oflags, int devtype, struct thread *td) {
     vd_softc_t sc;
 
-    printf("vordog_open\n");
     sc = CDEV_2_SOFTC(dev);
     sc->open_cnt++;
 
@@ -68,7 +67,6 @@
 vordog_close(struct cdev *dev, int fflag, int devtype, struct thread *td) {
     vd_softc_t sc;
 
-    printf("vordog_close\n");
     sc = CDEV_2_SOFTC(dev);
     sc->open_cnt--;
 
@@ -81,22 +79,18 @@
     device_t vd_dev, nexus_dev;
     int r;
 
-    printf("go_detach 1\n");
     vd_dc = devclass_find("vordog");
     if(vd_dc == NULL)
 	return EINVAL;
 
-    printf("go_detach 2\n");
     vd_dev = devclass_get_device(vd_dc, 0);
     if(vd_dev == NULL)
 	return EINVAL;
 
-    printf("go_detach 3\n");
     nexus_dev = device_get_parent(vd_dev);
     if(nexus_dev == NULL)
 	return EINVAL;
 
-    printf("go_detach 4\n");
     r = device_delete_child(nexus_dev, vd_dev);
     return r;
 }
@@ -157,6 +151,10 @@
     .d_name = "vordog",
 };
 
+/* Following implements a new bus device.
+ * It is attached under nexus bus, an on board device as `vordog0'.
+ */
+
 static void vordog_identify(driver_t *driver, device_t parent) {
     device_t vordog;