--- zzzz-none-000/linux-4.4.60/drivers/usb/core/sysfs.c	2017-04-08 07:53:53.000000000 +0000
+++ jet-2400-727/linux-4.4.60/drivers/usb/core/sysfs.c	2021-03-17 14:36:41.000000000 +0000
@@ -382,6 +382,13 @@
 			value <= -INT_MAX/1000)
 		return -EINVAL;
 
+/* == 20171115 AVM/VGJ Prevent suspension of blacklisted devices == */
+#if defined (CONFIG_AVM_USB_PM)
+	if (avm_usb_pm_is_blacklisted(to_usb_device(dev))) {
+		value = -1;
+	}
+#endif
+
 	pm_runtime_set_autosuspend_delay(dev, value * 1000);
 	return count;
 }
@@ -728,6 +735,68 @@
 }
 static DEVICE_ATTR_IGNORE_LOCKDEP(remove, S_IWUSR, NULL, remove_store);
 
+#if 1 /* == 20160222 AVM/VGJ - CHANGESET: noprobe Extension for AURA == */
+
+/* show if probing is allowed (0) or not allowed (1) for the device */
+static ssize_t usb_dev_noprobe_show(struct device *dev,
+				       struct device_attribute *attr,
+				       char *buf)
+{
+	struct usb_device *usb_dev = to_usb_device(dev);
+	return snprintf(buf, PAGE_SIZE, "%u\n", usb_dev->noprobe);
+}
+
+/*
+ * Prevent probing for a device
+ * (configures or deconfigures the device as a side effect)
+ *
+ * Writing a 0 allows probing and reconfigures the device
+ * writing a 1 prevents probing and unconfigures the device it
+ * writing a 2 prevents probing and resets the device
+ * 
+ */
+static ssize_t usb_dev_noprobe_store(struct device *dev,
+					struct device_attribute *attr,
+					const char *buf, size_t size)
+{
+	ssize_t result;
+	struct usb_device *usb_dev = to_usb_device(dev);
+	unsigned val;
+	result = sscanf(buf, "%u\n", &val);
+	if (result != 1)
+		result = -EINVAL;
+	else {
+		usb_lock_device(usb_dev);
+		if (val == 0) {
+			int c,err;
+			usb_dev->noprobe = 0;
+			c = usb_choose_configuration(usb_dev);
+			if (c >= 0) {
+				err = usb_set_configuration(usb_dev, c);
+				if (err) {
+					dev_err(&usb_dev->dev,
+						"can't set config #%d, error %d\n", c, err);
+					/* This need not be fatal.  The user can try to
+					 * set other configurations. */
+				}
+			}
+		} else {
+			usb_dev->noprobe = 1;
+			usb_set_configuration(usb_dev, -1);
+			/* == 20160219 AVM/VGJ - CHANGESET: noprobe: extra value 2 resets device */
+			if (val == 2) {
+				usb_reset_device (usb_dev);
+			}
+		}
+		usb_unlock_device(usb_dev);
+	}
+	return result < 0? result : size;
+}
+
+static DEVICE_ATTR(noprobe, 0644,
+	    usb_dev_noprobe_show, usb_dev_noprobe_store);
+
+#endif
 
 static struct attribute *dev_attrs[] = {
 	/* current configuration's attributes */
@@ -758,6 +827,9 @@
 	&dev_attr_remove.attr,
 	&dev_attr_removable.attr,
 	&dev_attr_ltm_capable.attr,
+#if 1 /* == 20160222 AVM/VGJ - CHANGESET: noprobe Extension == */
+	&dev_attr_noprobe.attr,
+#endif
 	NULL,
 };
 static struct attribute_group dev_attr_grp = {