On Fri, 25 Feb 2022, Greg KH wrote: > > I mean that if you need a bpf program to be loaded from userspace at > > boot to make your keyboard functional, then you need to have the root > > partition mounted (or put the program in the initrd) so udev can load > > it. Now if your keyboard is supposed to give the password used to > > decrypt your root partition but you need a bpf program on that said > > partition to make it functional, you are screwed :) > > True, but that's why the HID boot protocol was designed for keyboards > and mice, so that they "always" work. Yeah, I know many devices ignore > it, oh well... That's a very mild statement :) *Most* of the recent modern HW doesn't support it as far as I can say. Thanks, -- Jiri Kosina SUSE Labs
