cregit-Linux how code gets into the kernel

Release 4.12 include/misc/charlcd.h

Directory: include/misc
 * Character LCD driver for Linux
 * Copyright (C) 2000-2008, Willy Tarreau <>
 * 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 ifwidth;			/* 4-bit or 8-bit (default) */
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 (*write_cmd_raw4)(struct charlcd *lcd, int cmd);	/* 4-bit only */
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);

Overall Contributors

Geert Uytterhoeven159100.00%2100.00%
Directory: include/misc
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