chickadee » posix-extras » create-character-device

create-block-device filename major minor #!optional (mode 438)procedure
create-character-device filename major minor #!optional (mode 438)procedure

Create a block or character device called FILENAME having major device number MAJOR and minor device number MINOR. The optional creation MODE may also be specified via perm/... bits or directly in octal, and defaults to #o666, subject to your current umask.

These are merely convenient aliases to create-special-file.