Author: ray
Date: Mon Sep 14 14:42:06 2015
New Revision: 287782
URL: https://svnweb.freebsd.org/changeset/base/287782
Log:
MFC: r272715
Allow vt(4) to disable terminal bell with `sysctl
kern.vt.bell_enable=0`,
similar as syscons(4) do.
Submitted by: Tiwei Bie <b...@mail.ustc.edu.cn>
Sponsored by: The FreeBSD Foundation
Modified:
stable/10/sys/dev/vt/vt_core.c
Directory Properties:
stable/10/ (props changed)
Modified: stable/10/sys/dev/vt/vt_core.c
==============================================================================
--- stable/10/sys/dev/vt/vt_core.c Mon Sep 14 12:25:45 2015
(r287781)
+++ stable/10/sys/dev/vt/vt_core.c Mon Sep 14 14:42:06 2015
(r287782)
@@ -121,6 +121,7 @@ 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");
@@ -935,6 +936,9 @@ 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;
@@ -946,6 +950,9 @@ vtterm_beep(struct terminal *tm, u_int p
{
u_int freq, period;
+ if (!vt_enable_bell)
+ return;
+
if ((param == 0) || ((param & 0xffff) == 0)) {
vtterm_bell(tm);
return;
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