diff options
| author | Lars Poeschel <poeschel@lemonage.de> | 2020-11-03 10:58:13 +0100 |
|---|---|---|
| committer | Miguel Ojeda <ojeda@kernel.org> | 2020-11-04 11:04:03 +0100 |
| commit | 88645a86e3420cddfe5bb9cd8d7c15aff8f54b46 (patch) | |
| tree | 685137731ca062ddbfa71413bd8db9d6c750e3a0 /drivers/auxdisplay/charlcd.h | |
| parent | d3a2fb810f273b7a2c393d4de28ae91a3f76985d (diff) | |
auxdisplay: add home to charlcd_ops
This adds a home function to the charlcd_ops struct and offer an
implementation for hd44780_common. This implementation is used by our
two hd44780 drivers. This is to make charlcd device independent.
Reviewed-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Lars Poeschel <poeschel@lemonage.de>
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Diffstat (limited to 'drivers/auxdisplay/charlcd.h')
| -rw-r--r-- | drivers/auxdisplay/charlcd.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/auxdisplay/charlcd.h b/drivers/auxdisplay/charlcd.h index f36cc80ce385..236fd0e9e8ab 100644 --- a/drivers/auxdisplay/charlcd.h +++ b/drivers/auxdisplay/charlcd.h @@ -41,12 +41,15 @@ struct charlcd { * wrap to the next line at the end of a line. * @gotoxy: Set cursor to x, y. The x and y values to set the cursor to are * previously set in addr.x and addr.y by charlcd. + * @home: Set cursor to 0, 0. The values in addr.x and addr.y are set to 0, 0 by + * charlcd prior to calling this function. */ struct charlcd_ops { void (*clear_fast)(struct charlcd *lcd); void (*backlight)(struct charlcd *lcd, enum charlcd_onoff on); int (*print)(struct charlcd *lcd, int c); int (*gotoxy)(struct charlcd *lcd); + int (*home)(struct charlcd *lcd); }; struct charlcd *charlcd_alloc(void); |