9. Sensors¶

The device’s non-display input and sensing hardware: capacitive touch, the fingerprint sensor, the magnetic hall-effect cover switch, the detachable keyboard cover’s connector, and the sensor/fingerprint HAL layer. The active pen (EMR digitizer) is display-adjacent and documented in Wacom EMR pen digitizer driver instead, since it shares the panel and the e-ink static-disassembly method. The power and volume buttons are physical keys, not sensors, and are documented in Physical keys: power, volume, and the boot-mode dispatcher.

9.1. Peripheral map (DT overlay)¶

Device	`compatible`	Bus	GPIOs / notes / detail page
Wacom pen (`wacom@09`)	`onyx,wacom_i2c`	I²C `0x09`	see Wacom EMR pen digitizer driver
Capacitive touch (`pt_tp@24`)	Parade TrueTouch (`pt_*`)	I²C `0x24`	see Capacitive touch (Parade pt_core)
Fingerprint (`fragment@57`)	`fortsense,fortsense_fp` / `chipsailing_fp` / `microarray_fp`	SPI	see Misc sensors (fingerprint, hall, keyboard cover)
Hall sensor (`onyx_hall`)	onyx hall (`fragment@52`)	GPIO	see Misc sensors (fingerprint, hall, keyboard cover)
Keyboard cover (`onyx-keyboard`)	`onyx,keyboard-ultra2`	—	see Misc sensors (fingerprint, hall, keyboard cover)

All devices are DT-bound in artifacts/dtbo_a/overlay_0.dts and built into artifacts/kernel (DTBO overlays); none of them are loadable modules. The power and volume buttons (gpio_keys, qcom,qpnp-power-on@800) are physical keys, not sensors — see Physical keys: power, volume, and the boot-mode dispatcher.