From: Jason Dravet <dravetj@yahoo.com>

Add sysfs support to parport_pc.  Without this patch parport_pc does not
provide enough information to udev to create a /dev node.  This eliminates
the need to create the lp and parport nodes using /etc/udev/makedev.d.

Signed-off-by: Jason Dravet <dravet@hotmail.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---

 drivers/parport/parport_pc.c |   16 ++++++++++++++++
 1 files changed, 16 insertions(+)

diff -puN drivers/parport/parport_pc.c~add-udev-support-to-parport_pc drivers/parport/parport_pc.c
--- devel/drivers/parport/parport_pc.c~add-udev-support-to-parport_pc	2006-01-04 02:22:02.000000000 -0800
+++ devel-akpm/drivers/parport/parport_pc.c	2006-01-04 02:22:02.000000000 -0800
@@ -14,6 +14,7 @@
  * More PCI support now conditional on CONFIG_PCI, 03/2001, Paul G. 
  * Various hacks, Fred Barnes, 04/2001
  * Updated probing logic - Adam Belay <ambx1@neo.rr.com>
+ * Added sysfs support, January 2, 2006 - Jason Dravet <dravet@hotmail.com>
  */
 
 /* This driver should work with any hardware that is broadly compatible
@@ -55,6 +56,7 @@
 #include <linux/pci.h>
 #include <linux/pnp.h>
 #include <linux/sysctl.h>
+#include <linux/sysfs.h>
 
 #include <asm/io.h>
 #include <asm/dma.h>
@@ -99,6 +101,9 @@ static struct superio_struct {	/* For Su
 	int dma;
 } superios[NR_SUPERIOS] __devinitdata = { {0,},};
 
+static struct class *parallel_class;
+int countports = 0;
+
 static int user_specified;
 #if defined(CONFIG_PARPORT_PC_SUPERIO) || \
        (defined(CONFIG_PARPORT_1284) && defined(CONFIG_PARPORT_PC_FIFO))
@@ -2232,6 +2237,11 @@ struct parport *parport_pc_probe_port (u
                                            is mandatory (see above) */
 		p->dma = PARPORT_DMA_NONE;
 
+	parallel_class = class_create(THIS_MODULE, "lp");
+	class_device_create(parallel_class, NULL, MKDEV(6, countports), NULL, "lp%i", countports);
+	class_device_create(parallel_class, NULL, MKDEV(99, countports), NULL, "parport%i", countports);
+	countports++;
+
 #ifdef CONFIG_PARPORT_PC_FIFO
 	if (parport_ECP_supported(p) &&
 	    p->dma != PARPORT_DMA_NOFIFO &&
@@ -3406,6 +3416,12 @@ static void __exit parport_pc_exit(void)
 	if (pnp_registered_parport)
 		pnp_unregister_driver (&parport_pc_pnp_driver);
 
+	for (countports--; countports >=0; countports--) {
+		class_device_destroy(parallel_class, MKDEV(99, countports));
+		class_device_destroy(parallel_class, MKDEV(6, countports));
+	}
+	class_destroy(parallel_class);
+
 	spin_lock(&ports_lock);
 	while (!list_empty(&ports_list)) {
 		struct parport_pc_private *priv;
_