1 files changed, 50 insertions, 0 deletions

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
+};