move /proc/gio to /proc/bus/gio/devices

[Guido Guenther <agx@sigxcpu.org>]

Hi,
the patch reformats /proc/gio and moves it to /proc/bus/gio/devices (for
better conformance with other busses). It also changes the format to be
better machine parseable. I discussed this with Ladis and he said it's
o.k. Can it be applied?
The new format is: "Slot DeviceID BaseAddress MapSize". I'd like to see
this in to cleanup the X-Server code.
 -- Guido

Index: arch/mips/sgi-ip22/ip22-gio.c
===================================================================
RCS file: /cvs/linux/arch/mips/sgi-ip22/ip22-gio.c,v
retrieving revision 1.1.2.3
diff -u -u -r1.1.2.3 ip22-gio.c
--- arch/mips/sgi-ip22/ip22-gio.c       2002/08/05 23:53:35     1.1.2.3
+++ arch/mips/sgi-ip22/ip22-gio.c       2002/08/09 13:09:43
@@ -69,14 +69,12 @@
        int i;
        char *p = buf;
 
-       p += sprintf(p, "GIO devices found:\n");
        for (i = 0; i < GIO_NUM_SLOTS; i++) {
                if (gio_slot[i].flags & GIO_NO_DEVICE)
                        continue;
-               p += sprintf(p, "  Slot %s, DeviceId 0x%02x\n",
-                            gio_slot[i].slot_name, gio_slot[i].device);
-               p += sprintf(p, "    BaseAddr 0x%08lx, MapSize 0x%08x\n",
-                            gio_slot[i].base_addr, gio_slot[i].map_size);
+               p += sprintf(p, "%s 0x%02x 0x%08lx 0x%08x\n",
+                               gio_slot[i].slot_name, gio_slot[i].device,
+                               gio_slot[i].base_addr, gio_slot[i].map_size);
        }
 
        return p - buf;
@@ -84,7 +82,16 @@
 
 void create_gio_proc_entry(void)
 {
-       create_proc_read_entry("gio", 0, NULL, gio_read_proc, NULL);
+       int i;
+
+       for (i = 0; i < GIO_NUM_SLOTS; i++) {
+               /* only create proc entry if we have at least one device */
+               if (! (gio_slot[i].flags & GIO_NO_DEVICE))
+                       if( proc_mkdir("bus/gio", NULL) )
+                               create_proc_read_entry("bus/gio/devices", 0,
+                                               NULL, gio_read_proc, NULL);
+                       break;
+       }
 }
 
 /**