From 2ac2629c484a9bcb85c31bc6f5bb6203ead038f8 Mon Sep 17 00:00:00 2001
From: jacqueline <me@jacqueline.id.au>
Date: Fri, 20 Sep 2024 14:55:29 +1000
Subject: [PATCH] Don't try to configure the dac if there is no dac

Fixes #106
---
 src/tangara/audio/i2s_audio_output.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/tangara/audio/i2s_audio_output.cpp b/src/tangara/audio/i2s_audio_output.cpp
index 55c8bdb8..c0265af3 100644
--- a/src/tangara/audio/i2s_audio_output.cpp
+++ b/src/tangara/audio/i2s_audio_output.cpp
@@ -168,6 +168,9 @@ auto I2SAudioOutput::PrepareFormat(const Format& orig) -> Format {
 }
 
 auto I2SAudioOutput::Configure(const Format& fmt) -> void {
+  if (!dac_) {
+    return;
+  }
   if (current_config_ && fmt == *current_config_) {
     ESP_LOGI(kTag, "ignoring unchanged format");
     return;