1 files changed, 55 insertions, 0 deletions
diff --git a/payloads/libpayload/drivers/usb/usb_dev.c b/payloads/libpayload/drivers/usb/usb_dev.c
new file mode 100644
index 0000000000..0c6a34ca10
--- /dev/null
+++ b/payloads/libpayload/drivers/usb/usb_dev.c
@@ -0,0 +1,55 @@
+/*
+ * This file is part of the libpayload project.
+ *
+ * Copyright (C) 2008 coresystems GmbH
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include "usb.h"
+
+static void
+usb_nop_destroy (usbdev_t *dev)
+{
+	if (dev->descriptor != 0)
+		free (dev->descriptor);
+	usb_nop_init (dev);
+	dev->address = -1;
+	dev->hub = -1;
+	dev->port = -1;
+}
+
+static void
+usb_nop_poll (usbdev_t *dev)
+{
+	return;
+}
+
+void
+usb_nop_init (usbdev_t *dev)
+{
+	dev->descriptor = 0;
+	dev->destroy = usb_nop_destroy;
+	dev->poll = usb_nop_poll;
+}