Please find the patches attached herewith for adding 3 new commands -

1. freeramdisk - If we unmount or detach the RAM disk based file system the Linux Kernel
   will not free the allocated memory associated with the RAM device. This can be useful if
   one wants to mount this device again:  All data will be preserved.
   If we need to free the memory back to the Kernel, one can use the command: "toybox freeramdisk <RAM device>".

2. openvt - Successfully opens a new virtual terminal as mentioned with -c option
        otherwise search and open next available VT.
with -s option it switches to new VT
with -s -w option, it switch back successfully to originating VT.

3. deallocvt - Deallocate specified virtual teminal.
   if no virtual terminal is specified, it deallocates all unused VT.

1 files changed, 37 insertions, 0 deletions

diff --git a/toys/pending/deallocvt.c b/toys/pending/deallocvt.c
new file mode 100644
index 00000000..8ac67016
--- /dev/null
+++ b/toys/pending/deallocvt.c
@@ -0,0 +1,37 @@
+/* deallocvt.c - Deallocate virtual terminal(s)
+ *
+ * Copyright 2014 Vivek Kumar Bhagat <vivek.bhagat89@gmail.com>
+ *
+ * No Standard.
+
+USE_DEALLOCVT(NEWTOY(deallocvt, ">1", TOYFLAG_USR|TOYFLAG_BIN|TOYFLAG_NEEDROOT))
+
+config DEALLOCVT
+  bool "deallocvt"
+	depends on OPENVT
+  default n
+  help
+		usage: deallocvt [N]
+
+		Deallocate unused virtual terminal /dev/ttyN
+		default value of N is 0, deallocate all unused consoles
+*/
+
+#include "toys.h"
+#include <linux/vt.h>
+
+void deallocvt_main(void)
+{
+	int fd;
+
+	// 0 : deallocate all unused consoles
+	int vt_num = 0;
+
+	if (toys.optargs[0])
+		vt_num = atolx_range(toys.optargs[0], 1, 63);
+
+	fd = find_console_fd();
+	if (fd < 0)	error_exit("can't open console");
+
+	xioctl(fd, VT_DISALLOCATE, (void *)(ptrdiff_t)vt_num);
+}