Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / usb / gadget / function / u_printer.h

diff --git a/kernel/drivers/usb/gadget/function/u_printer.h b/kernel/drivers/usb/gadget/function/u_printer.h
new file mode 100644 (file)
index 0000000..0e2c49d
--- /dev/null
+++ b/kernel/drivers/usb/gadget/function/u_printer.h
@@ -0,0 +1,37 @@
+/*
+ * u_printer.h
+ *
+ * Utility definitions for the printer function
+ *
+ * Copyright (c) 2015 Samsung Electronics Co., Ltd.
+ *             http://www.samsung.com
+ *
+ * Author: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef U_PRINTER_H
+#define U_PRINTER_H
+
+#include <linux/usb/composite.h>
+
+#define PNP_STRING_LEN                 1024
+
+struct f_printer_opts {
+       struct usb_function_instance    func_inst;
+       int                             minor;
+       char                            pnp_string[PNP_STRING_LEN];
+       unsigned                        q_len;
+
+       /*
+        * Protect the data from concurrent access by read/write
+        * and create symlink/remove symlink
+        */
+       struct mutex                    lock;
+       int                             refcnt;
+};
+
+#endif /* U_PRINTER_H */