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[components][lwp] handle TIOCLINUX and default window size #11890

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[components][lwp] handle TIOCLINUX and default window size #11890

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118ceb1
[components][lwp] handle TIOCLINUX and default window size
BernardXiong Oct 18, 2026
ad94402
[components][lwp] fix TTY init format and control character copy
BernardXiong Oct 18, 2026
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15 changes: 13 additions & 2 deletions components/lwp/terminal/freebsd/tty_compat.c
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Original file line number Diff line number Diff line change
Expand Up @@ -547,9 +547,20 @@ int lwp_tty_ioctl_adapter(lwp_tty_t tp, int cmd, int oflags, void *args, rt_thre
error = (IOCTL(FIONREAD, args, fflags, td));
break;

#ifdef USING_BSD_IOCTL_EXT
/* TIOCLINUX */
case TIOCLINUX:
{
/*
* Linux uses TIOCLINUX to obtain console keyboard modifier
* state. RT-Thread serial consoles do not expose that state,
* but applications such as mc only need this ioctl to be
* harmless when it is unavailable.
*/
unsigned char modifiers = 0;
error = _copy_to_user(args, &modifiers, sizeof(modifiers));
break;
}

#ifdef USING_BSD_IOCTL_EXT
case TIOCCONS:
args->cmd = TIOCCONS;
error = (sys_ioctl(td, (struct ioctl_args *)args));
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7 changes: 5 additions & 2 deletions components/lwp/terminal/tty_device.c
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Original file line number Diff line number Diff line change
Expand Up @@ -347,8 +347,11 @@ static void tty_init_termios(lwp_tty_t tp)
t->__c_ispeed = TTYDEF_SPEED;
t->__c_ospeed = TTYDEF_SPEED;

memcpy(&t->c_cc, tty_ctrl_charset,
sizeof(tty_ctrl_charset) / sizeof(tty_ctrl_charset[0]));
/* Keep terminal consumers usable when the host cannot report a size. */
tp->t_winsize.ws_row = 24;
tp->t_winsize.ws_col = 80;

memcpy(&t->c_cc, tty_ctrl_charset, sizeof(tty_ctrl_charset));

#ifdef USING_BSD_INIT_LOCK_DEVICE
tp->t_termios_init_out = *t;
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