diff options
Diffstat (limited to 'drivers/auxdisplay/lcd2s.c')
| -rw-r--r-- | drivers/auxdisplay/lcd2s.c | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/drivers/auxdisplay/lcd2s.c b/drivers/auxdisplay/lcd2s.c index 2578b2d45439..e28ec8452d46 100644 --- a/drivers/auxdisplay/lcd2s.c +++ b/drivers/auxdisplay/lcd2s.c @@ -1,10 +1,10 @@ // SPDX-License-Identifier: GPL-2.0 /* - * console driver for LCD2S 4x20 character displays connected through i2c. - * The display also has a spi interface, but the driver does not support + * Console driver for LCD2S 4x20 character displays connected through i2c. + * The display also has a SPI interface, but the driver does not support * this yet. * - * This is a driver allowing you to use a LCD2S 4x20 from modtronix + * This is a driver allowing you to use a LCD2S 4x20 from Modtronix * engineering as auxdisplay character device. * * (C) 2019 by Lemonage Software GmbH @@ -214,16 +214,15 @@ static int lcd2s_lines(struct charlcd *lcd, enum charlcd_lines lines) return 0; } +/* + * Generator: LGcxxxxx...xx; must have <c> between '0' and '7', + * representing the numerical ASCII code of the redefined character, + * and <xx...xx> a sequence of 16 hex digits representing 8 bytes + * for each character. Most LCDs will only use 5 lower bits of + * the 7 first bytes. + */ static int lcd2s_redefine_char(struct charlcd *lcd, char *esc) { - /* Generator : LGcxxxxx...xx; must have <c> between '0' - * and '7', representing the numerical ASCII code of the - * redefined character, and <xx...xx> a sequence of 16 - * hex digits representing 8 bytes for each character. - * Most LCDs will only use 5 lower bits of the 7 first - * bytes. - */ - struct lcd2s_data *lcd2s = lcd->drvdata; u8 buf[LCD2S_CHARACTER_SIZE + 2] = { LCD2S_CMD_DEF_CUSTOM_CHAR }; u8 value; |