+/**
+ * store_remove_id - remove a USB device ID from this driver
+ * @driver: target device driver
+ * @buf: buffer for scanning device ID data
+ * @count: input size
+ *
+ * Removes a dynamic usb device ID from this driver.
+ */
+static ssize_t
+store_remove_id(struct device_driver *driver, const char *buf, size_t count)
+{
+ struct usb_dynid *dynid, *n;
+ struct usb_driver *usb_driver = to_usb_driver(driver);
+ u32 idVendor = 0;
+ u32 idProduct = 0;
+ int fields = 0;
+ int retval = 0;
+
+ fields = sscanf(buf, "%x %x", &idVendor, &idProduct);
+ if (fields < 2)
+ return -EINVAL;
+
+ spin_lock(&usb_driver->dynids.lock);
+ list_for_each_entry_safe(dynid, n, &usb_driver->dynids.list, node) {
+ struct usb_device_id *id = &dynid->id;
+ if ((id->idVendor == idVendor) &&
+ (id->idProduct == idProduct)) {
+ list_del(&dynid->node);
+ kfree(dynid);
+ retval = 0;
+ break;
+ }
+ }
+ spin_unlock(&usb_driver->dynids.lock);
+
+ if (retval)
+ return retval;
+ return count;
+}
+static DRIVER_ATTR(remove_id, S_IWUSR, NULL, store_remove_id);
+