tty_create_cookie
status_t (*tty_create_cookie)(struct tty *masterTTY, struct tty *slaveTTY,
status = gTTYModule->tty_create_cookie(fMasterTTY, fSlaveTTY, O_RDWR, &fSystemTTYCookie);
status = gTTYModule->tty_create_cookie(fSlaveTTY, fMasterTTY, O_RDWR, &fDeviceTTYCookie);
status = gTTYModule->tty_create_cookie(fMasterTTY, fSlaveTTY, O_RDWR, &fSystemTTYCookie);
status = gTTYModule->tty_create_cookie(fSlaveTTY, fMasterTTY, O_RDWR, &fDeviceTTYCookie);
status = gTTYModule->tty_create_cookie(gMasterTTYs[index], gSlaveTTYs[index], flags, &cookie);
status_t status = gTTYModule->tty_create_cookie(gSlaveTTYs[index], gMasterTTYs[index], flags,
&tty_create_cookie,
extern status_t tty_create_cookie(struct tty *tty, struct tty *otherTTY,