Here's it actually!
Nico
--- linux-7/kernel/sysctl.c Tue Jul 24 18:50:16 2001
+++ linux/kernel/sysctl.c Tue Jul 24 19:07:06 2001
@@ -16,6 +16,7 @@
* Wendling.
* The list_for_each() macro wasn't appropriate for the sysctl loop.
* Removed it and replaced it with older style, 03/23/00, Bill Wendling
+ * disable pc_speaker support, 24th of July 2001, Nico Schottelius
*/
#include <linux/config.h>
@@ -47,6 +48,7 @@
extern int max_threads;
extern int nr_queued_signals, max_queued_signals;
extern int sysrq_enabled;
+extern int pcspeaker_enabled; /* don't waste ram unless really needed */
/* this is needed for the proc_dointvec_minmax for [fs_]overflow UID and GID */
static int maxolduid = 65535;
@@ -212,6 +214,9 @@
0444, NULL, &proc_dointvec},
{KERN_RTSIGMAX, "rtsig-max", &max_queued_signals, sizeof(int),
0644, NULL, &proc_dointvec},
+ {KERN_DISABLE_PC_SPEAKER, "pcspeaker", &pcspeaker_enabled, sizeof(int),
+ 0644, NULL, &proc_dointvec},
+
#ifdef CONFIG_SYSVIPC
{KERN_SHMMAX, "shmmax", &shm_ctlmax, sizeof (size_t),
0644, NULL, &proc_doulongvec_minmax},
--- linux-7/kernel/sys.c Tue Jul 24 18:50:16 2001
+++ linux/kernel/sys.c Tue Jul 24 19:07:49 2001
@@ -40,6 +40,12 @@
int C_A_D = 1;
+/*
+ * whether to enable or disable the pcspeaker. default is to enable it.
+ */
+
+int pcspeaker_enabled = 1;
+
/*
* Notifier list for kernel code which wants to be called
--- linux-7/include/linux/sysctl.h Tue Jul 24 18:50:18 2001
+++ linux/include/linux/sysctl.h Tue Jul 24 19:08:45 2001
@@ -118,7 +118,8 @@
KERN_SHMPATH=48, /* string: path to shm fs */
KERN_HOTPLUG=49, /* string: path to hotplug policy agent */
KERN_IEEE_EMULATION_WARNINGS=50, /* int: unimplemented ieee instructions */
- KERN_S390_USER_DEBUG_LOGGING=51 /* int: dumps of user faults */
+ KERN_S390_USER_DEBUG_LOGGING=51, /* int: dumps of user faults */
+ KERN_DISABLE_PC_SPEAKER=52 /* int: pcspeaker on or off */
};
--- linux-7/drivers/char/vt.c Tue Jul 24 18:51:34 2001
+++ linux/drivers/char/vt.c Tue Jul 24 19:10:15 2001
@@ -7,6 +7,7 @@
* Dynamic keymap and string allocation - aeb@cwi.nl - May 1994
* Restrict VT switching via ioctl() - grif@cs.ucr.edu - Dec 1995
* Some code moved for less code duplication - Andi Kleen - Mar 1997
+ * Added ability to disable the pc speaker - nico@schottelius.org - May 2001
*/
#include <linux/config.h>
@@ -40,6 +41,8 @@
#include <asm/vc_ioctl.h>
#endif /* CONFIG_FB_COMPAT_XPMAC */
+extern int pcspeaker_enabled; /* disable/enable the pcspeaker */
+
char vt_dont_switch;
extern struct tty_driver console_driver;
@@ -112,6 +115,10 @@
unsigned int count = 0;
unsigned long flags;
+ /* is the pcspeaker enabled or disabled ? 0=disabled,1=enabled */
+ if(!pcspeaker_enabled)
+ return;
+
if (hz > 20 && hz < 32767)
count = 1193180 / hz;
@@ -137,7 +144,7 @@
return;
}
-#else
+#else /* else of machine check */
void
_kd_mksound(unsigned int hz, unsigned int ticks)
-
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This archive was generated by hypermail 2b29 : Tue Jul 31 2001 - 21:00:28 EST