diff options
| author | Jiri Slaby <jslaby@suse.cz> | 2016-06-23 14:34:26 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-06-25 19:04:48 +0300 |
| commit | 97293de977365fe672daec2523e66ef457104921 (patch) | |
| tree | 14c8bbf5c4c87a1b06afa1f4c800a15b4c92b135 /include/linux/console.h | |
| parent | 3cc5be7739295ce00f5658c6f45c5c453412f708 (diff) | |
| download | linux-97293de977365fe672daec2523e66ef457104921.tar.xz | |
tty: vt, consw->con_scrolldelta cleanup
* allow NULL consw->con_scrolldelta (some consoles define an empty
hook)
* => remove empty hooks now
* return value of consw->con_scrolldelta is never checked => make the
function void
* document consw->con_scrolldelta a bit
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Thomas Winischhofer <thomas@winischhofer.net>
Cc: linux-usb@vger.kernel.org
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-fbdev@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/console.h')
| -rw-r--r-- | include/linux/console.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/include/linux/console.h b/include/linux/console.h index 98c8615dc300..d175de8d7006 100644 --- a/include/linux/console.h +++ b/include/linux/console.h @@ -28,6 +28,12 @@ struct tty_struct; #define VT100ID "\033[?1;2c" #define VT102ID "\033[?6c" +/** + * struct consw - callbacks for consoles + * + * @con_scrolldelta: the contents of the console should be scrolled by @lines. + * Invoked by user. (optional) + */ struct consw { struct module *owner; const char *(*con_startup)(void); @@ -48,7 +54,7 @@ struct consw { int (*con_resize)(struct vc_data *, unsigned int, unsigned int, unsigned int); int (*con_set_palette)(struct vc_data *, const unsigned char *); - int (*con_scrolldelta)(struct vc_data *, int); + void (*con_scrolldelta)(struct vc_data *, int lines); int (*con_set_origin)(struct vc_data *); void (*con_save_screen)(struct vc_data *); u8 (*con_build_attr)(struct vc_data *, u8, u8, u8, u8, u8, u8); |