Hi! > Add a new device tree object for LP5562 predfined led patterns. typo. > + "(^pattern@[0-9a-f]$|pattern)": > + type: object > + $ref: common.yaml# > + description: | > + LP5562 sepcific object. LED pattern program saved to and run > on LP5562. typo. But.. no, not like this. We have generic pattern trigger. Take a look at its interface. Extend it to get parameters from device tree. Then use existing 'default-trigger' functionality. Best regards, Pavel --