3 files changed, 54 insertions, 1 deletions

diff --git a/drivers/macintosh/Makefile b/drivers/macintosh/Makefile
index f5ae171dbfef..236291bd48a4 100644
--- a/drivers/macintosh/Makefile
+++ b/drivers/macintosh/Makefile
@@ -4,7 +4,7 @@
 
 # Each configuration option enables a list of files.
 
-obj-$(CONFIG_PPC_PMAC)          += macio_asic.o
+obj-$(CONFIG_PPC_PMAC)          += macio_asic.o macio_sysfs.o
 
 obj-$(CONFIG_PMAC_MEDIABAY)     += mediabay.o
 obj-$(CONFIG_MAC_EMUMOUSEBTN)   += mac_hid.o
diff --git a/drivers/macintosh/macio_asic.c b/drivers/macintosh/macio_asic.c
index 37b18ee08a2d..7fa369cfcceb 100644
--- a/drivers/macintosh/macio_asic.c
+++ b/drivers/macintosh/macio_asic.c
@@ -126,11 +126,14 @@ static int macio_device_resume(struct device * dev)
         return 0;
 }
 
+extern struct device_attribute macio_dev_attrs[];
+
 struct bus_type macio_bus_type = {
        .name    = "macio",
        .match   = macio_bus_match,
        .suspend = macio_device_suspend,
        .resume  = macio_device_resume,
+       .dev_attrs = macio_dev_attrs,
 };
 
 static int __init macio_bus_driver_init(void)
diff --git a/drivers/macintosh/macio_sysfs.c b/drivers/macintosh/macio_sysfs.c
new file mode 100644
index 000000000000..97d22bb4516a
--- /dev/null
+++ b/drivers/macintosh/macio_sysfs.c
@@ -0,0 +1,50 @@
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/stat.h>
+#include <asm/macio.h>
+
+
+#define macio_config_of_attr(field, format_string)                      \
+static ssize_t                                                          \
+field##_show (struct device *dev, struct device_attribute *attr,        \
+              char *buf)                                                \
+{                                                                       \
+        struct macio_dev *mdev = to_macio_device (dev);                 \
+        return sprintf (buf, format_string, mdev->ofdev.node->field);   \
+}
+
+static ssize_t
+compatible_show (struct device *dev, struct device_attribute *attr, char *buf)
+{
+        struct of_device *of;
+        char *compat;
+        int cplen;
+        int length = 0;
+
+        of = &to_macio_device (dev)->ofdev;
+        compat = (char *) get_property(of->node, "compatible", &cplen);
+        if (!compat) {
+                *buf = '\0';
+                return 0;
+        }
+        while (cplen > 0) {
+                int l;
+                length += sprintf (buf, "%s\n", compat);
+                buf += length;
+                l = strlen (compat) + 1;
+                compat += l;
+                cplen -= l;
+        }
+
+        return length;
+}
+
+macio_config_of_attr (name, "%s\n");
+macio_config_of_attr (type, "%s\n");
+
+struct device_attribute macio_dev_attrs[] = {
+        __ATTR_RO(name),
+        __ATTR_RO(type),
+        __ATTR_RO(compatible),
+        __ATTR_NULL
+};