WSBELL(4) | Device Drivers Manual | WSBELL(4)

# NAME

`wsbell` —
generic bell support in wscons

# SYNOPSIS

`wsbell* at spkr? console?`

# DESCRIPTION

The `wsbell` driver utilizes the speaker(4) driver to provide a system bell with or without a keyboard for the wscons(4) framework. When a bell character is received on a wsdisplay(4) screen, `wsbell` sounds the bell.

The wsconsctl(8) utility gives access to several configurable parameters that effect the sound of the system bell.

## Ioctls

The following ioctl(2) calls are provided by the `wsbell` driver. Their definitions are found in dev/wscons/wsconsio.h.

`WSKBDIO_BELL`
  Will sound the default bell.
`WSKBDIO_GETBELL`
  Will return a struct wskbd_bell_data with the current bell parameters.
`WSKBDIO_SETBELL`
  Takes a struct wskbd_bell_data and uses it to set the bell parameters. These are used by the WSKBDIO_BELL ioctl(2) call.
`WSKBDIO_COMPLEXBELL`
  Will sound a bell using a supplied struct wskbd_bell_data for its parameters.
`WSKBDIO_GETDEFAULTBELL`
  Will return a struct wskbd_bell_data with the default bell parameters.
`WSKBDIO_SETDEFAULTBELL`
  Takes a struct wskbd_bell_data and uses it to set the default bell parameters.

Ioctls use the following structure:

    struct wskbd_bell_data {
    	u_int	which;			/* values to get/set */
    #define	WSKBD_BELL_DOPITCH	0x1	/* get/set pitch */
    #define	WSKBD_BELL_DOPERIOD	0x2	/* get/set period */
    #define	WSKBD_BELL_DOVOLUME	0x4	/* get/set volume */
    #define	WSKBD_BELL_DOALL	0x7	/* all of the above */
    	u_int	pitch;			/* pitch, in Hz */
    	u_int	period;			/* period, in milliseconds */
    	u_int	volume;			/* percentage of max volume */
    };

# FILES

- /usr/include/dev/wscons/wsconsio.h.

# SEE ALSO

speaker(4), wscons(4), wskbd(4), wsmux(4), wsconsctl(8), wsbell(9)

June 13, 2017 | NetBSD 9.2