Index: uspace/srv/hid/output/ctl/serial.c
===================================================================
--- uspace/srv/hid/output/ctl/serial.c	(revision efdfebc372ac1a93545f90450c8e1fe0aa789daf)
+++ uspace/srv/hid/output/ctl/serial.c	(revision efdfebc372ac1a93545f90450c8e1fe0aa789daf)
@@ -0,0 +1,136 @@
+/*
+ * Copyright (c) 2006 Ondrej Palkovsky
+ * Copyright (c) 2008 Martin Decky
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ * - The name of the author may not be used to endorse or promote products
+ *   derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/** @addtogroup console
+ * @{
+ */
+/**
+ * @file
+ */
+
+#include <sys/types.h>
+#include <errno.h>
+#include <io/chargrid.h>
+#include "../output.h"
+#include "../proto/vt100.h"
+#include "serial.h"
+
+#define SERIAL_COLS  80
+#define SERIAL_ROWS  24
+
+/** Draw the character at the specified position.
+ *
+ * @param state VT100 protocol state.
+ * @param field Character field.
+ * @param col   Horizontal screen position.
+ * @param row   Vertical screen position.
+ *
+ */
+static void draw_char(vt100_state_t *state, charfield_t *field,
+    sysarg_t col, sysarg_t row)
+{
+	vt100_goto(state, col, row);
+	vt100_set_attr(state, field->attrs);
+	vt100_putchar(state, field->ch);
+}
+
+static int serial_yield(outdev_t *dev)
+{
+	vt100_state_t *state = (vt100_state_t *) dev->data;
+	
+	return vt100_yield(state);
+}
+
+static int serial_claim(outdev_t *dev)
+{
+	vt100_state_t *state = (vt100_state_t *) dev->data;
+	
+	return vt100_claim(state);
+}
+
+static void serial_get_dimensions(outdev_t *dev, sysarg_t *cols,
+    sysarg_t *rows)
+{
+	vt100_state_t *state = (vt100_state_t *) dev->data;
+	
+	vt100_get_dimensions(state, cols, rows);
+}
+
+static console_caps_t serial_get_caps(outdev_t *dev)
+{
+	return (CONSOLE_CAP_STYLE | CONSOLE_CAP_INDEXED);
+}
+
+static void serial_cursor_update(outdev_t *dev, sysarg_t prev_col,
+    sysarg_t prev_row, sysarg_t col, sysarg_t row, bool visible)
+{
+	vt100_state_t *state = (vt100_state_t *) dev->data;
+	
+	vt100_goto(state, col, row);
+	vt100_cursor_visibility(state, visible);
+}
+
+static void serial_char_update(outdev_t *dev, sysarg_t col, sysarg_t row)
+{
+	vt100_state_t *state = (vt100_state_t *) dev->data;
+	charfield_t *field =
+	    chargrid_charfield_at(dev->backbuf, col, row);
+	
+	draw_char(state, field, col, row);
+}
+
+static outdev_ops_t serial_ops = {
+	.yield = serial_yield,
+	.claim = serial_claim,
+	.get_dimensions = serial_get_dimensions,
+	.get_caps = serial_get_caps,
+	.cursor_update = serial_cursor_update,
+	.char_update = serial_char_update
+};
+
+int serial_init(vt100_putchar_t putchar_fn,
+    vt100_control_puts_t control_puts_fn)
+{
+	vt100_state_t *state =
+	    vt100_state_create(SERIAL_COLS, SERIAL_ROWS, putchar_fn,
+	    control_puts_fn);
+	if (state == NULL)
+		return ENOMEM;
+	
+	outdev_t *dev = outdev_register(&serial_ops, state);
+	if (dev == NULL) {
+		vt100_state_destroy(state);
+		return ENOMEM;
+	}
+	
+	return EOK;
+}
+
+/** @}
+ */