Update USB Audio Setup on RetroPie Wiki

[Tekkaman_Slade]

Is it possible to update step 5 of the USB Audio instructions on the RetroPie Wiki to create /etc/asound.conf with the following content:

pcm.card1 {
  type hw card 1
}

ctl.card1 {
  type hw card 1
}

pcm.!default card1

This will set the name of the volume control to "PCM" instead of "Speaker" in the mixer and resolves the annoying "lvl0: VolumeControl::init() - Failed to find mixer elements!" error messages while allowing the volume slider to work in the EmulationStation settings UI.

Thanks.

[herb_fargus]

@Tekkaman_Slade

From the homepage of the wiki:

This wiki is supposed to be created by the users of the RetroPie setup script for the users of the script. Everyone can contribute to it!