+static int macio_uevent(struct device *dev, char **envp, int num_envp,
+ char *buffer, int buffer_size)
+{
+ struct macio_dev * macio_dev;
+ struct of_device * of;
+ char *scratch, *compat, *compat2;
+ int i = 0;
+ int length, cplen, cplen2, seen = 0;
+
+ if (!dev)
+ return -ENODEV;
+
+ macio_dev = to_macio_device(dev);
+ if (!macio_dev)
+ return -ENODEV;
+
+ of = &macio_dev->ofdev;
+
+ /* stuff we want to pass to /sbin/hotplug */
+ envp[i++] = scratch = buffer;
+ length = scnprintf (scratch, buffer_size, "OF_NAME=%s", of->node->name);
+ ++length;
+ buffer_size -= length;
+ if ((buffer_size <= 0) || (i >= num_envp))
+ return -ENOMEM;
+ scratch += length;
+
+ envp[i++] = scratch;
+ length = scnprintf (scratch, buffer_size, "OF_TYPE=%s", of->node->type);
+ ++length;
+ buffer_size -= length;
+ if ((buffer_size <= 0) || (i >= num_envp))
+ return -ENOMEM;
+ scratch += length;
+
+ /* Since the compatible field can contain pretty much anything
+ * it's not really legal to split it out with commas. We split it
+ * up using a number of environment variables instead. */
+
+ compat = (char *) get_property(of->node, "compatible", &cplen);
+ compat2 = compat;
+ cplen2= cplen;
+ while (compat && cplen > 0) {
+ envp[i++] = scratch;
+ length = scnprintf (scratch, buffer_size,
+ "OF_COMPATIBLE_%d=%s", seen, compat);
+ ++length;
+ buffer_size -= length;
+ if ((buffer_size <= 0) || (i >= num_envp))
+ return -ENOMEM;
+ scratch += length;
+ length = strlen (compat) + 1;
+ compat += length;
+ cplen -= length;
+ seen++;
+ }
+
+ envp[i++] = scratch;
+ length = scnprintf (scratch, buffer_size, "OF_COMPATIBLE_N=%d", seen);
+ ++length;
+ buffer_size -= length;
+ if ((buffer_size <= 0) || (i >= num_envp))
+ return -ENOMEM;
+ scratch += length;
+
+ envp[i++] = scratch;
+ length = scnprintf (scratch, buffer_size, "MODALIAS=of:N%sT%s",
+ of->node->name, of->node->type);
+ /* overwrite '\0' */
+ buffer_size -= length;
+ if ((buffer_size <= 0) || (i >= num_envp))
+ return -ENOMEM;
+ scratch += length;
+
+ if (!compat2) {
+ compat2 = "";
+ cplen2 = 1;
+ }
+ while (cplen2 > 0) {
+ length = snprintf (scratch, buffer_size, "C%s", compat2);
+ buffer_size -= length;
+ if (buffer_size <= 0)
+ return -ENOMEM;
+ scratch += length;
+ length = strlen (compat2) + 1;
+ compat2 += length;
+ cplen2 -= length;
+ }
+
+ envp[i] = NULL;
+
+ return 0;
+}
+
+extern struct device_attribute macio_dev_attrs[];
+