1* D-Link DIR-685 Touchkeys 2 3This is a I2C one-off touchkey controller based on the Cypress Semiconductor 4CY8C214 MCU with some firmware in its internal 8KB flash. The circuit 5board inside the router is named E119921. 6 7The touchkey device node should be placed inside an I2C bus node. 8 9Required properties: 10- compatible: must be "dlink,dir685-touchkeys" 11- reg: the I2C address of the touchkeys 12- interrupts: reference to the interrupt number 13 14Example: 15 16touchkeys@26 { 17 compatible = "dlink,dir685-touchkeys"; 18 reg = <0x26>; 19 interrupt-parent = <&gpio0>; 20 interrupts = <17 IRQ_TYPE_EDGE_FALLING>; 21}; 22