.. index:: beep (command)

.. _command_beep:

beep - play a GRUB beep tune
============================

Usage
^^^^^
``beep tempo [pitch1 duration1 [pitch2 duration2] ...]``

Synopsis
^^^^^^^^
Tempo is an unsigned 32bit number. It's followed by pairs of unsigned
16bit numbers for pitch and duration.
The tempo is the base for all note durations. 60 gives a 1-second base,
120 gives a half-second base, etc. Pitches are Hz.
Set pitch to 0 to produce a rest.
When only tempo is given, a beep of duration 1 at bell frequency results.

Options
^^^^^^^
-c
 cancel pending beeps
-w
 wait until beep is over

.. generated from: /ptx/work/WORK_EIHEI/sha/backup/barebox/barebox-maintainer-utils/barebox/commands/beep.c
.. command function: do_beep