5ee03afdb5
- 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> |
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