# USB Audio Drivers for GL-XE300 with OpenWRT 24.10.0

## ALSA Userland Tools

These give you the aplay, alsamixer, and basic testing commands.  USB audio support was confirmed with a C-Media USB DAC (class-compliant).

opkg install alsa-utils

aplay – play WAV files
alsamixer – mixer for volume control (if supported)
speaker-test – generate test tones

## Kernel Modules for Audio Support

These allow the kernel to actually see and use the USB audio device:

opkg install kmod-sound-core
opkg install kmod-usb-audio

Make sure both were installed — they enable:

ALSA sound subsystem (snd)
USB audio class driver (snd-usb-audio)

Check module status:

lsmod | grep snd

## Other Notes

opkg install usbutils

lsusb           
lsusb -v        

Assuming your files live in /root/wav/:

WAV (Raw PCM):
aplay --buffer-time=200000 --period-time=10000 -D plughw:0,0 /root/wav/test.wav

MP3:
mpg123 -a plughw:0,0 /root/wav/test.mp3

## Install Commands

```bash
opkg update && opkg install alsa-utils kmod-sound-core kmod-usb-audio mpg123 madplay timidity usbutils