[linux-audio-dev] Re: Linux Audio driver problem on TI OMAP 2430

[chandrashekhar singh]

Hi Nishanth,
Hope you are doing well.
We have an issue with the Linux kernel 2.6 for OMAP 2430 
which is available on TI site for download. The Stereo effect 
does not work.  Would you advise us some thing, why it does
work?  We are planning to test our surround and other effect modules
on this target but due to stereo does not work, we can't test our midi
engine with effect module.

Please advise us if any to come out of this problem.

Best Regards
chandrashekhar 
 
----- Original Message ----- 
From: "Menon, Nishanth" <x0nishan at ti.com>
To: "chandrashekhar singh" <cp_singh at faith.co.jp>
Sent: Wednesday, June 07, 2006 11:01 PM
Subject: RE: Linux Audio driver problem on TI OMAP 2430


Chandrashekar,
If ur using MV kernel, then there are some interesting things u can play
with :).. u can now choose to switch b/w the onboard speakers and the
headset speakers using IOCTLs (don't remember offhand what it was).

There is one interesting factor I had reported to the SDP team,
recording can be done from headset mic (the 2.5 mm) only if I plug in a
headset into the 3.5mm jack.. just thought I'd warn u on this.. minor
irritant, but better know than being surprised..
Regards,
Nishanth Menon
> -----Original Message-----
> From: chandrashekhar singh [mailto:cp_singh at faith.co.jp]
> Sent: Tuesday, June 06, 2006 10:18 PM
> To: Menon, Nishanth
> Cc: Khasim, Syed
> Subject: Re: Linux Audio driver problem on TI OMAP 2430
> 
> Hi Nishanth,
> 
> Thanks for your prompt response which saved our alot of time
> now we have tested our application on revised version of Board
> component and it seems working perfectly.
> 
> Thanking you all.
> ========================
> \    chandrashekhar singh
>  \   cp_singh at faith.co.jp
>  /   Faith Inc. Tokyo
> /  www.faith.co.jp
> ========================
> ----- Original Message -----
> From: "Menon, Nishanth" <x0nishan at ti.com>
> To: "Khasim, Syed" <x0khasim at ti.com>; "chandrashekhar singh"
> <cp_singh at faith.co.jp>
> Sent: Wednesday, May 31, 2006 9:52 PM
> Subject: RE: Linux Audio driver problem on TI OMAP 2430
> 
> 
> Hi Chandrashekar,
> Please look for modification to the following board revision numbers:
> * T2 Companion Board, Revision 750-2012-001 (E).
> * Connectivity Board, Revision 750-2003-002 (D).
> * Enhanced LCD/Audio Board, Revision 750-2038-001 (C).
> Regards,
> Nishanth Menon
> > -----Original Message-----
> > From: linux-omap-open-source-bounces at linux.omap.com
> [mailto:linux-omap-
> > open-source-bounces at linux.omap.com] On Behalf Of Khasim, Syed
> > Sent: Wednesday, May 31, 2006 7:29 AM
> > To: chandrashekhar singh; linux-omap-open-source at linux.omap.com
> > Subject: RE: Linux Audio driver problem on TI OMAP 2430
> >
> > Hi Chandra shekhar,
> >
> > Which version of 2430 SDP is this and are you working with TWL4030
> (T2)
> > audio codec?
> >
> > There was a noise issue with T2 audio codec and got resolved later.
> This
> > needs some hardware modifications. You might have to upgrade your
> board.
> > Please contact your vendor.
> >
> > Regards,
> > Khasim
> >
> > -----Original Message-----
> > From: linux-omap-open-source-bounces+x0khasim=ti.com at linux.omap.com
> >
[mailto:linux-omap-open-source-bounces+x0khasim=ti.com at linux.omap.com]
> > On Behalf Of chandrashekhar singh
> > Sent: Wednesday, May 31, 2006 6:07 AM
> > To: linux-omap-open-source at linux.omap.com
> > Subject: Linux Audio driver problem on TI OMAP 2430
> >
> > Dear All,
> > We are working on a  porting on porting of a audio application on
> > TI OMAP 2430.
> >
> > We have got running Monta-vista linux kernel 2.4 on this target
board
> > and ported our application, while playing we noticed that there is
> > some noise generated by audio driver in back ground.
> >
> > For testing purpose we have downloaded Genaral Linux kernel 2.6 for
> > OMAP 2430 from TI site and tested our appliction on this.
> >
> > The problem remain same on both linux.
> >
> > If  any body had experience this problem and have got some solution
> > please help  me out.
> >
> >
> > Thanks in advance.
> > chandrashekhar
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