On Thu, Aug 27, 2020 at 11:18:59AM +0200, Greg Kroah-Hartman wrote: > > I looked at it, but it does get registered and shows up in sysfs. > > It does? Where does that happen? I see a bunch of kobject_init() > calls, but nothing that registers it in sysfs that I can see. Hmm, true. > > Note, this is not the kobject that shows up in /sys/dev/char/ as a > symlink, that comes from the driver core logic and is independent of the > cdev code. > > The kobject does handle the structure lifetime rules, but that should be > able to be replaced with a simple kref instead. Yeah. I'll let you handle this stuff, as you obviously know the area better than I do.