# ALSA configuration for USB gadget audio
# The UAC1 gadget appears as a ALSA card (typically card 1 or 2).
# This config routes Pd audio output to the USB gadget.

# Default PCM device for USB gadget audio
pcm.!default {
    type plug
    slave {
        pcm "hw:UAC1Gadget,0"
        format S16_LE
        channels 2
        rate 48000
    }
}

# Control device
ctl.!default {
    type hw
    card UAC1Gadget
}

# Software volume control via ALSA (hardware may not have mixer)
pcm.softvol {
    type softvol
    slave.pcm "hw:UAC1Gadget,0"
    control {
        name "Master Playback Volume"
        card UAC1Gadget
    }
    min_dB -51.0
    max_dB 0.0
    resolution 256
}

# Null sink for testing when no USB gadget is connected
pcm.loopback {
    type plug
    slave {
        pcm "hw:Loopback,0,0"
        format S16_LE
        channels 2
        rate 48000
    }
}