[alsa-devel] [PATCH 2/2] ALSA: Integrate control based jack reporting with core jack reporting

Raymond Yau superquad.vortex2 at gmail.com
Tue Feb 14 02:29:27 CET 2012

2012/2/10, Takashi Iwai <tiwai at suse.de>:

> I'd like to hear rather comments from others.

1) The problem of core jack api which is tailor made for embedded
device, it assume there is only one sound card

when the desktop computer have more than one sound cards which have jack detect
there is no mapping to which sound card has the events.

How to differentiate . noboard hdmi port and graphic card's hdmi ?

2) if the objective of adding jack detection is for trapping
plug/unplug event to trigger the reconfiguration of audio server


does the audio server require to know the initial state of the hdmi
or just need the trigger event ?

3) There are laptops (e.g. alienware) which have two HP jacks and Mic
jack which need jack retasking for support surround5.1 since the name
of volume controls cannot be rename , the only way is to perform a
hda-reconfig or early patching

can those input device be deleted during the hda-reconfig ?

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