Tactility/Drivers/cst816t-module
Ken Van Hoeylandt 85b61e1e43
Improve module configuration (#661)
DTS modules (device modules) often have a single source file with an empty `struct Module`.
The module's yaml file now allows a `dts-only` boolean to be set, so the source file becomes optional.
`devicetree.yaml` is renamed everywhere to `module.yaml`
2026-09-25 21:56:37 +02:00
..
2026-07-22 22:43:34 +02:00
2026-07-22 22:43:34 +02:00
2026-09-13 00:52:16 +02:00

CST816T touch controller

A driver for the CST816T I2C capacitive touch controller by Hynitron.

Implemented directly against the register. (no esp_lcd_touch dependency)

Single-touch only: the datasheet advertises "genuine two-point" support, but neither of the sources above documents a second touch-point register set, so only one point is read.

enter_sleep/exit_sleep are unimplemented (nullptr in the PointerApi, per its "null if not supported" contract). The reference driver defines REG_SLEEP_MODE (0xE5) but never writes it, and the datasheet says waking from sleep needs a hardware reset pulse anyway, not a register write.

License: Apache v2.0