This adds userspace support for baud rates reater than 230400, provided the tty
also supports it.
#endif
#ifdef B230400
{230400, B230400},
+#endif
+#ifdef B460800
+ {460800, B460800},
+#endif
+#ifdef B500000
+ {500000, B500000},
+#endif
+#ifdef B576000
+ {576000, B576000},
+#endif
+#ifdef B921600
+ {921600, B921600},
+#endif
+#ifdef B1000000
+ {1000000, B1000000},
+#endif
+#ifdef B1152000
+ {1152000, B1152000},
+#endif
+#ifdef B1500000
+ {1500000, B1500000},
+#endif
+#ifdef B2000000
+ {2000000, B2000000},
+#endif
+#ifdef B2500000
+ {2500000, B2500000},
+#endif
+#ifdef B3000000
+ {3000000, B3000000},
+#endif
+#ifdef B3500000
+ {3500000, B3500000},
+#endif
+#ifdef B4000000
+ {4000000, B4000000},
#endif
{0, 0},
};