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path: root/drivers/usb/gadget/function/u_printer.h
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Diffstat (limited to 'drivers/usb/gadget/function/u_printer.h')
-rw-r--r--drivers/usb/gadget/function/u_printer.h37
1 files changed, 37 insertions, 0 deletions
diff --git a/drivers/usb/gadget/function/u_printer.h b/drivers/usb/gadget/function/u_printer.h
new file mode 100644
index 000000000000..0e2c49d4274e
--- /dev/null
+++ b/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 */