Dear Ian, I have tried to look into this and replied to some of your patches. There are still many things to do, and I think the reviewing would be much easier to review if you sent all the code changes as one patch (since the changes are doing an atomic change: adding support for blkdev LED trigger). Keep only the sysfs doc change in a separate patch. You are unnecessary using the const keyword in places where it is not needed and not customary for Linux kernel codebase. See in another of my replies. You are using a weird comment style, i.e. /* * * Disassociate an LED from the trigger * */ static void blkdev_deactivate(struct led_classdev *const led_dev) Please look at how functions are documented in led-class.c, for example. There are many other things I would like you to change and fix, I will comment on them once you send this proposal as two commits: one sysfs docs change, one code change. Marek