diff -r 025cb00d19d7 sys/dev/puc/puc.c
--- a/sys/dev/puc/puc.c	Sat Feb 28 12:42:37 2009 -0800
+++ b/sys/dev/puc/puc.c	Mon Mar 02 12:55:26 2009 -0800
@@ -440,9 +440,6 @@
 	sc->sc_dev = dev;
 	sc->sc_cfg = cfg;
 
-	/* We don't attach to single-port serial cards. */
-	if (cfg->ports == PUC_PORT_1S || cfg->ports == PUC_PORT_1P)
-		return (EDOOFUS);
 	error = puc_config(sc, PUC_CFG_GET_NPORTS, 0, &res);
 	if (error)
 		return (error);
diff -r 025cb00d19d7 sys/dev/puc/pucdata.c
--- a/sys/dev/puc/pucdata.c	Sat Feb 28 12:42:37 2009 -0800
+++ b/sys/dev/puc/pucdata.c	Mon Mar 02 12:55:26 2009 -0800
@@ -761,6 +761,12 @@
 	    PUC_PORT_2P, 0x10, 8, 0,
 	}, 
 
+	{   0x9710, 0x9835, 0x1000, 1,
+	    "NetMos NM9835 based 1-port serial",
+	    DEFAULT_RCLK,
+	    PUC_PORT_1S, 0x10, 4, 0,
+	},
+
 	{   0x9710, 0x9835, 0xffff, 0,
 	    "NetMos NM9835 Dual UART and 1284 Printer port",
 	    DEFAULT_RCLK,