[PATCH] hw.syscons.bell sysctl for vt (newcons)

[Aleksandr Rybalko]

On Sun,  5 Oct 2014 12:27:53 +0800
Tiwei Bie <btw at mail.ustc.edu.cn> wrote:

> Hi All,
> 
> I think the hw.syscons.bell sysctl provided by syscons is a very convenient method
> to disable the sound alert in FreeBSD. But I haven't found the similar interface
> in vt. So I have written a patch to implement the sysctl 'kern.vt.enable_bell'
> which is similar to 'hw.syscons.bell' for vt.

Hello Tiwei!

Commited in r272715.

Thanks a lot!

> 
> ---
>  sys/dev/vt/vt_core.c | 7 +++++++
>  1 file changed, 7 insertions(+)
> 
> diff --git a/sys/dev/vt/vt_core.c b/sys/dev/vt/vt_core.c
> index 2dd7e3f..a8cdedb 100644
> --- a/sys/dev/vt/vt_core.c
> +++ b/sys/dev/vt/vt_core.c
> @@ -120,6 +120,7 @@ const struct terminal_class vt_termclass = {
>  
>  static SYSCTL_NODE(_kern, OID_AUTO, vt, CTLFLAG_RD, 0, "vt(9) parameters");
>  VT_SYSCTL_INT(enable_altgr, 1, "Enable AltGr key (Do not assume R.Alt as Alt)");
> +VT_SYSCTL_INT(enable_bell, 1, "Enable bell");
>  VT_SYSCTL_INT(debug, 0, "vt(9) debug level");
>  VT_SYSCTL_INT(deadtimer, 15, "Time to wait busy process in VT_PROCESS mode");
>  VT_SYSCTL_INT(suspendswitch, 1, "Switch to VT0 before suspend");
> @@ -904,6 +905,9 @@ vtterm_bell(struct terminal *tm)
>  	struct vt_window *vw = tm->tm_softc;
>  	struct vt_device *vd = vw->vw_device;
>  
> +	if (!vt_enable_bell)
> +		return;
> +
>  	if (vd->vd_flags & VDF_QUIET_BELL)
>  		return;
>  
> @@ -915,6 +919,9 @@ vtterm_beep(struct terminal *tm, u_int param)
>  {
>  	u_int freq, period;
>  
> +	if (!vt_enable_bell)
> +		return;
> +
>  	if ((param == 0) || ((param & 0xffff) == 0)) {
>  		vtterm_bell(tm);
>  		return;
> -- 
> 2.1.0
> 
> 
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-- 
Aleksandr Rybalko <ray at ddteam.net>