diff -upNr busybox-1.7.2/libbb/speed_table.c busybox-1.7.2-921600/libbb/speed_table.c
--- busybox-1.7.2/libbb/speed_table.c	2007-09-03 13:48:41.000000000 +0200
+++ busybox-1.7.2-921600/libbb/speed_table.c	2008-10-09 16:23:26.269592899 +0200
@@ -52,6 +52,9 @@ static const struct speed_map speeds[] =
 #ifdef B460800
 	{B460800, 460800/256 + 0x8000U},
 #endif
+#ifdef B921600
+	{B921600, 921600/256 + 0x8000U},
+#endif
 };
 
 enum { NUM_SPEEDS = ARRAY_SIZE(speeds) };