Add explicit guards to all device mode tasks to ensure the device is connected and...

[pub/USBasp.git] / Demos / Device / LowLevel / AudioInput / AudioInput.c

diff --git a/Demos/Device/LowLevel/AudioInput/AudioInput.c b/Demos/Device/LowLevel/AudioInput/AudioInput.c
index 50e7f4d..5656b05 100644 (file)
--- a/Demos/Device/LowLevel/AudioInput/AudioInput.c
+++ b/Demos/Device/LowLevel/AudioInput/AudioInput.c
@@ -151,6 +151,10 @@ void EVENT_USB_UnhandledControlPacket(void)
 /** Task to manage the Audio interface, reading in ADC samples from the microphone, and them to the host. */\r
 void USB_Audio_Task(void)\r
 {\r
+       /* Device must be connected and configured for the task to run */\r
+       if (!(USB_IsConnected) || !(USB_ConfigurationNumber))\r
+         return;\r
+\r
        /* Check to see if the streaming interface is selected, if not the host is not receiving audio */\r
        if (!(StreamingAudioInterfaceSelected))\r
          return;\r