In ResPyre_ project context, `Regis Prevot`_ wrote a python binding
for ALSA_. Because I believe his work could be usefull for other
developpers, here is a first version of alsamodule_. 

This first version supports ALSA mixer. You can get, change, mute,
unmute volume on audio channels. Here is a little example:

::

    >>> import alsa
    >>> mixer = alsa.mixer("default")
    >>> mixer.printInfo()
                **********************
    Card Id:                        default
    Mixer Card Name:                Intel 82801DB-ICH4
    Mixer Device Name:              SigmaTel STAC9750/51,0x42434d64 BCM
    Max Volume:                     -1
    Min Volume:                     -1
    Incremental value min:          -1.00
    Number of Elements:             22
                **********************
    >>> print mixer.channels.keys()
    ['Capture', 'Mic', 'Mono Output Select', 'Mix', 
     'Master', 'PCM', 'Aux', 'External Amplifier', 
     '3D Control - Switch', 'Phone', 'PC Speaker', 
     'Line', 'Mic Select', 'CD', '3D Control - Depth', 
     'Master Mono', 'Mix Mono', 'Mic Boost (+20dB)', 
     'Headphone', 'Video', '3D Control - Center', 
     'PCM Out Path & Mute']
    >>> print "get volume for device PCM"
    get volume for device PCM
    >>> print mixer.getVolume("PCM")
    (45, 45)
    >>> print mixer.setVolume("PCM", 3, 3)
    (48, 48)

The binding is written in C, and has been tested under Linux. A
`setup.py` file should come shortly. Until then use the Makefile to
build the thing.

Any feedback is welcome.


.. _ResPyre: http://respyre.org
.. _Regis Prevot: http://respyre.org/reg.html
.. _ALSA: http://alsa-project.org
.. _alsamodule: http://respyre.org/pyalsa.html