compat_state_t
from_compat(compat_state_t *csp, struct termios *termiosp)
to_compat(struct termios *termiosp, compat_state_t *csp)
static void from_compat(compat_state_t *, struct termios *);
static void to_compat(struct termios *, compat_state_t *);
compat_state_t t_curstate; /* current emulated state */