names.

Add "dev" pointer in struct net_device to tie network interfaces back to a
hardware device.

Force natural alignment of data types in __table() macros.  This seems to
prevent gcc from taking the unilateral decision to occasionally increase
their alignment (which screws up the table packing).

it's a serial console and remembers state from the previous program
run.

"Permission denied" as an error text to strerror().

Kill errortab array; it can screw up alignment.

"boot" command to attempt booting from within the command shell, fall back
to shell if boot fails for any reason.

screen sequence doesn't work (like bios_console.c on some platforms).

the option config UI.

Introduce new {show,set,clear}_setting() that take a struct setting *
rather than a const char *.

set_setting() handles calling clear_setting() when appropriate, so that
individual setting types don't have to check for empty strings.

thinking that a command executed successfully.

call doesn't do it.

printing in the bottom-right position.

the (slow) werase().

stdscr directly.