An initial modproble implementation.  Quite suboptimal still,
but it does work...
diff --git a/modprobe.c b/modprobe.c
new file mode 100644
index 0000000..971ff0a
--- /dev/null
+++ b/modprobe.c
@@ -0,0 +1,121 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * really dumb modprobe implementation for busybox
+ * Copyright (C) 2001 Lineo, davidm@lineo.com
+ */
+
+#include <stdio.h>
+#include <getopt.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <syslog.h>
+#include <string.h>
+#include "busybox.h"
+
+static char cmd[128];
+
+extern int modprobe_main(int argc, char** argv)
+{
+	int	ch, rc = 0;
+	int	loadall = 0, showconfig = 0, debug = 0, autoclean = 0, list = 0;
+	int	show_only = 0, quiet = 0, remove = 0, do_syslog = 0, verbose = 0;
+	char	*load_type = NULL, config = NULL;
+
+	while ((ch = getopt(argc, argv, "acdklnqrst:vVC:")) != -1)
+		switch(ch) {
+		case 'a':
+			loadall++;
+			break;
+		case 'c':
+			showconfig++;
+			break;
+		case 'd':
+			debug++;
+			break;
+		case 'k':
+			autoclean++;
+			break;
+		case 'l':
+			list++;
+			break;
+		case 'n':
+			show_only++;
+			break;
+		case 'q':
+			quiet++;
+			break;
+		case 'r':
+			remove++;
+			break;
+		case 's':
+			do_syslog++;
+			break;
+		case 't':
+			load_type = optarg;
+			break;
+		case 'v':
+			verbose++;
+			break;
+		case 'C':
+			config = optarg;
+			break;
+		case 'V':
+		default:
+			show_usage();
+			break;
+		}
+
+	if (load_type || config) {
+		fprintf(stderr, "-t and -C not supported\n");
+		exit(EXIT_FAILURE);
+	}
+
+	if (showconfig)
+		exit(EXIT_SUCCESS);
+	
+	if (list)
+		exit(EXIT_SUCCESS);
+	
+	if (remove) {
+		do {
+			sprintf(cmd, "rmmod %s %s %s",
+					optind >= argc ? "-a" : "",
+					do_syslog ? "-s" : "",
+					optind < argc ? argv[optind] : "");
+			if (do_syslog)
+				syslog(LOG_INFO, "%s", cmd);
+			if (show_only || verbose)
+				printf("%s\n", cmd);
+			if (!show_only)
+				rc = system(cmd);
+		} while (++optind < argc);
+		exit(EXIT_SUCCESS);
+	}
+
+	if (optind >= argc) {
+		fprintf(stderr, "No module or pattern provided\n");
+		exit(EXIT_FAILURE);
+	}
+
+	sprintf(cmd, "insmod %s %s %s",
+			do_syslog ? "-s" : "",
+			quiet ? "-q" : "",
+			autoclean ? "-k" : "");
+	while (optind < argc) {
+		strcat(cmd, argv[optind]);
+		strcat(cmd, " ");
+		optind++;
+	}
+	if (do_syslog)
+		syslog(LOG_INFO, "%s", cmd);
+	if (show_only || verbose)
+		printf("%s\n", cmd);
+	if (!show_only)
+		rc = system(cmd);
+	else
+		rc = 0;
+
+	exit(rc ? EXIT_FAILURE : EXIT_SUCCESS);
+}
+
+