1 files changed, 40 insertions, 0 deletions

diff --git a/include/misc/charlcd.h b/include/misc/charlcd.h
new file mode 100644
index 000000000000..c40047b673c9
--- /dev/null
+++ b/include/misc/charlcd.h
@@ -0,0 +1,40 @@
+/*
+ * Character LCD driver for Linux
+ *
+ * Copyright (C) 2000-2008, Willy Tarreau <w@1wt.eu>
+ * Copyright (C) 2016-2017 Glider bvba
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+struct charlcd {
+        const struct charlcd_ops *ops;
+        const unsigned char *char_conv; /* Optional */
+
+        int height;
+        int width;
+        int bwidth;                     /* Default set by charlcd_alloc() */
+        int hwidth;                     /* Default set by charlcd_alloc() */
+
+        void *drvdata;                  /* Set by charlcd_alloc() */
+};
+
+struct charlcd_ops {
+        /* Required */
+        void (*write_cmd)(struct charlcd *lcd, int cmd);
+        void (*write_data)(struct charlcd *lcd, int data);
+
+        /* Optional */
+        void (*clear_fast)(struct charlcd *lcd);
+        void (*backlight)(struct charlcd *lcd, int on);
+};
+
+struct charlcd *charlcd_alloc(unsigned int drvdata_size);
+
+int charlcd_register(struct charlcd *lcd);
+int charlcd_unregister(struct charlcd *lcd);
+
+void charlcd_poke(struct charlcd *lcd);