Srinivasan S wrote:
Could you please provide any inputs w.r.t the loopback card using snd-aloop & alsaloop, how this loopback card can be used to connect the GSM two way call simultanoeusly to the UDA1345TS codec on MCASP0 of the am335x (UDA1345TS ie., real sound card)
snd-aloop creates a virtual sound card; it is not used with a real sound card.
The codec has two output channels VOUTL, VOUTR & two input channels VINL , VINR
With this am able to achieve only one way call at a time by running only one application at a time
To allow a capture device to be shared, you need to use dsnoop. Your asound.conf already does this.
To allow a playback device to be shared, you need to use dshare or dmix. (dshare allows to use _different_ channels; dmix allows mixing multiple sources into the same channels.) Your asound.conf does not do this; it uses "hw" instead.
Regards, Clemens