[alsa-devel] ALC269VB config for recording on multiple pcm streams.

Shrirang Bagul shrirangnbagul at hotmail.com
Tue Apr 26 11:54:02 CEST 2011

I need to record on multiple (four) channels for a beam-forming application. The sound card is Intel-HDA controller with Realtek ALC269VB codec chip.I am able to create two pcm sub-streams (stereo) for capturing; however, the recorded audio is always mono.
The linux kernel version is 2.6.38-rc7. The changes to the patch_realtek.c are attached along with alsa-info.sh output.
The $arecord -l command output is:
**** List of CAPTURE Hardware Devices ****card 0: Intel [HDA Intel], device 0: ALC269VB Analog [ALC269VB Analog]  Subdevices: 1/1  Subdevice #0: subdevice #0card 0: Intel [HDA Intel], device 2: ALC269VB Analog [ALC269VB Analog]  Subdevices: 1/1  Subdevice #0: subdevice #0
Can anyone help me resolve this problem?

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