- for the Mekotronics R58X Pro LCD
- The Vinka VK2C21 (and pin-compatible VK2C21A/VK2C21B) is a memory-mapping
segment LCD controller that communicates over I2C. It can drive up to
128 segments (e.g. 32 SEG × 4 COM in 1/3 bias mode).
- Some SBCs wire this chip to GPIO pins without I2C pull-up
resistors, making the standard i2c-gpio (open-drain) driver unusable.
This driver therefore bit-bangs I2C in push-pull mode directly via GPIO,
requiring no external pull-ups.
- extra glyphs and fix for top-bar
Signed-off-by: Ricardo Pardini <ricardo@pardini.net>
