vserver 2.0 rc7

[linux-2.6.git] / drivers / input / serio / parkbd.c

diff --git a/drivers/input/serio/parkbd.c b/drivers/input/serio/parkbd.c
index d0510ec..1d15c28 100644 (file)
--- a/drivers/input/serio/parkbd.c
+++ b/drivers/input/serio/parkbd.c
@@ -1,31 +1,47 @@
 /*
- * $Id: parkbd.c,v 1.10 2002/03/13 10:09:20 vojtech Exp $
+ *  Parallel port to Keyboard port adapter driver for Linux
  *
- *  Copyright (c) 1999-2001 Vojtech Pavlik
+ *  Copyright (c) 1999-2004 Vojtech Pavlik
  */
 
 /*
- *  Parallel port to Keyboard port adapter driver for Linux
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
  */
 
 /*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
+ * To connect an AT or XT keyboard to the parallel port, a fairly simple adapter
+ * can be made:
+ * 
+ *  Parallel port            Keyboard port
  *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
+ *     +5V --------------------- +5V (4)
+ *  
+ *                 ______
+ *     +5V -------|______|--.
+ *                          |
+ *     ACK (10) ------------|
+ *                          |--- KBD CLOCK (5)
+ *     STROBE (1) ---|<|----'
+ *     
+ *                 ______
+ *     +5V -------|______|--.
+ *                          |
+ *     BUSY (11) -----------|
+ *                          |--- KBD DATA (1)
+ *     AUTOFD (14) --|<|----'
  *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *     GND (18-25) ------------- GND (3)
+ *     
+ * The diodes can be fairly any type, and the resistors should be somewhere
+ * around 5 kOhm, but the adapter will likely work without the resistors,
+ * too.
  *
- * Should you need to contact me, the author, you can do so either by
- * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
- * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
+ * The +5V source can be taken either from USB, from mouse or keyboard ports,
+ * or from a joystick port. Unfortunately, the parallel port of a PC doesn't
+ * have a +5V pin, and feeding the keyboard from signal pins is out of question
+ * with 300 mA power reqirement of a typical AT keyboard.
  */
 
 #include <linux/module.h>
@@ -158,7 +174,7 @@ static struct serio * __init parkbd_allocate_serio(void)
        serio = kmalloc(sizeof(struct serio), GFP_KERNEL);
        if (serio) {
                memset(serio, 0, sizeof(struct serio));
-               serio->type = parkbd_mode;
+               serio->id.type = parkbd_mode;
                serio->write = parkbd_write,
                strlcpy(serio->name, "PARKBD AT/XT keyboard adapter", sizeof(serio->name));
                snprintf(serio->phys, sizeof(serio->phys), "%s/serio0", parkbd_dev->port->name);
@@ -167,7 +183,7 @@ static struct serio * __init parkbd_allocate_serio(void)
        return serio;
 }
 
-int __init parkbd_init(void)
+static int __init parkbd_init(void)
 {
        int err;
 
@@ -191,7 +207,7 @@ int __init parkbd_init(void)
        return 0;
 }
 
-void __exit parkbd_exit(void)
+static void __exit parkbd_exit(void)
 {
        parport_release(parkbd_dev);
        serio_unregister_port(parkbd_port);