Index: kernel/genarch/include/drivers/dsrln/dsrlnin.h
===================================================================
--- kernel/genarch/include/drivers/dsrln/dsrlnin.h	(revision 67a88c34de6b29d84b4ea8c0f06dfa98cbcf09bd)
+++ kernel/genarch/include/drivers/dsrln/dsrlnin.h	(revision 67a88c34de6b29d84b4ea8c0f06dfa98cbcf09bd)
@@ -0,0 +1,61 @@
+/*
+ * Copyright (c) 2009 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 genarch
+ * @{
+ */
+/**
+ * @file
+ * @brief Dummy serial line input.
+ */
+
+#ifndef KERN_DSRLNIN_H_
+#define KERN_DSRLNIN_H_
+
+#include <ddi/irq.h>
+#include <arch/types.h>
+#include <console/chardev.h>
+#include <typedefs.h>
+
+typedef struct {
+	ioport8_t data;
+} __attribute__ ((packed)) dsrlnin_t;
+
+typedef struct {
+	devno_t devno;
+	irq_t irq;
+	dsrlnin_t *dsrlnin;
+	indev_t kbrdin;
+} dsrlnin_instance_t;
+
+extern indev_t *dsrlnin_init(dsrlnin_t *, devno_t, inr_t);
+
+#endif
+
+/** @}
+ */
Index: kernel/genarch/include/drivers/dsrln/dsrlnout.h
===================================================================
--- kernel/genarch/include/drivers/dsrln/dsrlnout.h	(revision 67a88c34de6b29d84b4ea8c0f06dfa98cbcf09bd)
+++ kernel/genarch/include/drivers/dsrln/dsrlnout.h	(revision 67a88c34de6b29d84b4ea8c0f06dfa98cbcf09bd)
@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2009 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 genarch
+ * @{
+ */
+/**
+ * @file
+ * @brief Dummy serial line output.
+ */
+
+#ifndef KERN_DSRLNOUT_H_
+#define KERN_DSRLNOUT_H_
+
+#include <arch/types.h>
+#include <typedefs.h>
+
+extern void dsrlnout_init(ioport8_t *);
+
+#endif
+
+/** @}
+ */