Hi all: I'm a newbie and trying to make a userland devfs for DFly and the design is much more like devctl. The logic is kernel provide a device named udev, in d_open the device copyout list of devices. I inject the make_dev in kern_conf.c with udev_attach(). The userland daemon udevd open and read /dev/udev and create respected node. The protocal is raw string like "+null @ major/minor for uid/gid with perms". My code can make nodes now but I have some problems:
1. Is there any block device ? 2. what is the purpose of make_sub_dev in kern_conf.c ? 3. I got /dev/ad0 for my harddisk but where is the make_dev of slice and disklabel ? 4. I use 189 for the major of udev but what is the meaning of "Hopefully, this list will one day be obsoleted by DEVFS" in sys/conf/majors ? My /dev looks better now :) Thanks. best wishes whisper :)
