From: "Péter Ujfalusi" <peter.ujfalusi@ti.com>
To: Almohanad Fayez <alfayez@aol.com>
Cc: "alsa-devel@alsa-project.org" <alsa-devel@alsa-project.org>
Subject: Re: TWL4030 Line In/Out Loopback issue
Date: Tue, 9 Aug 2011 09:40:44 +0300 [thread overview]
Message-ID: <7043327.t1Ga8nN19U@barack> (raw)
In-Reply-To: <8CE23F32532D611-21B8-378F5@webmail-d033.sysops.aol.com>
On Monday 08 August 2011 17:01:11 Almohanad Fayez wrote:
> Péter,
>
> I can't seem to find a Left/Right Digital Loopback the mention of a loop I
> found is an FM Loop Enable. The following is the dapm_widget enable output
> from my Gumstix Overo running the 2.6.38 Kernel. Thanks for your help.
Look for the control:
amixer -c0
Look for the Left/Right Digital Loopback in the list, and check the value
> root@usrp-e1xx:~# cat /sys/devices/platform/soc-audio/TWL4030/dapm_widget
> Headset Mic Bias: Off
> Mic Bias 2: Off
> Mic Bias 1: Off
> micbias2 select: Off
> micbias1 select: Off
> Digimic1 Enable: Off
> Digimic0 Enable: Off
> ADC Physical Right: On
> ADC Physical Left: On
> Analog Right: On
> Analog Left: On
> ADC Virtual Right2: Off
> ADC Virtual Left2: Off
> ADC Virtual Right1: Off
> ADC Virtual Left1: Off
> HandsfreeR PGA: Off
> HandsfreeL PGA: Off
> CarkitR PGA: Off
> CarkitR Mixer: Off
> CarkitL PGA: Off
> CarkitL Mixer: Off
> HeadsetR PGA: On
> HeadsetR Mixer: On
> HeadsetL PGA: On
> HeadsetL Mixer: On
> PredriveR PGA: Off
> PredriveR Mixer: Off
> PredriveL PGA: Off
> PredriveL Mixer: Off
> Earpiece PGA: Off
> Earpiece Mixer: Off
> AIF Enable: On
> APLL Enable: Off
> Analog Voice Playback Mixer: Off
> Analog L2 Playback Mixer: On
> Analog R2 Playback Mixer: On
> Analog L1 Playback Mixer: Off
> Analog R1 Playback Mixer: Off
> Digital Voice Playback Mixer: Off
> Digital L2 Playback Mixer: On
> Digital R2 Playback Mixer: On
> Digital L1 Playback Mixer: Off
> Digital R1 Playback Mixer: Off
> FM Loop Enable: Off
> DAC Voice: Off
> DAC Left2: Off
> DAC Right2: Off
> DAC Left1: Off
> DAC Right1: Off
> PM State: On
Hrm,
It does seams that the digital loopback is enabled from this.
You had only capture running while taken this, right?
--
Péter
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next prev parent reply other threads:[~2011-08-09 6:40 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-08 0:27 TWL4030 Line In/Out Loopback issue Almohanad Fayez
2011-08-08 8:56 ` Péter Ujfalusi
2011-08-08 15:01 ` Almohanad Fayez
2011-08-09 6:40 ` Péter Ujfalusi [this message]
2011-08-09 16:12 ` Almohanad Fayez
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