Hi Manisha,   Sorry this is not a response which will help you.   I am facing similar issue. I am using SALSA and I am trying to record from a USB headset. The USB headset does have a mixer elem "Mic". But when I use snd_mixer_selem_get_capture_dB_range() or snd_mixer_selem_get_capture_volume_range() I just get zeroes.   I did not do any set() functions like snd_mixer_selem_set_capture_switch_all(). Do I need to do that ? What is your source of info about how to set up the mixer for capture ?   Thanks in advance Reetesh

--- On Wed, 4/15/09, Manisha Sankpal manisha.sankpal@gmail.com wrote:

From: Manisha Sankpal manisha.sankpal@gmail.com Subject: [alsa-devel] SALSA library and recording To: alsa-devel@alsa-project.org Date: Wednesday, April 15, 2009, 9:32 AM

Hi All, I am using salsa library to capture the data from the sound card.  The requirement is that the recording should be done from line-in port of the sound card. The selection of "Line-in" port should be done  programatically.

With ALSA library, I am able to select the line-in by calling snd_mixer_selem_set_capture_switch_all()  function. However, this function is returning an error when SALSA library is used.  Is there any other function/way to select the line-in mixer element in the SALSA API?

The help would be appreciated. Thanks & regards, manisha _______________________________________________ Alsa-devel mailing list Alsa-devel@alsa-project.org http://mailman.alsa-project.org/mailman/listinfo/alsa-devel