From 018b7321ed454c3f4ef7788be98cc5a69b7ae847 Mon Sep 17 00:00:00 2001
From: Benjamin Valentin <benjamin.valentin@ml-pa.com>
Date: Thu, 8 Feb 2024 17:06:28 +0100
Subject: [PATCH] pkg/tinyusb/cdc_acm_stdio: only enable RX callback if stdin
 is active

---
 pkg/tinyusb/cdc_acm_stdio/cdc_acm_stdio.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkg/tinyusb/cdc_acm_stdio/cdc_acm_stdio.c b/pkg/tinyusb/cdc_acm_stdio/cdc_acm_stdio.c
index e6b2306d47bf..1bb71d54e3f6 100644
--- a/pkg/tinyusb/cdc_acm_stdio/cdc_acm_stdio.c
+++ b/pkg/tinyusb/cdc_acm_stdio/cdc_acm_stdio.c
@@ -44,6 +44,7 @@ static ssize_t _write(const void* buffer, size_t len)
     return (char *)buffer - start;
 }
 
+#ifdef MODULE_STDIN
 void tud_cdc_rx_cb(uint8_t itf)
 {
     (void)itf;
@@ -52,5 +53,6 @@ void tud_cdc_rx_cb(uint8_t itf)
     unsigned res = tud_cdc_read(buffer, sizeof(buffer));
     isrpipe_write(&stdin_isrpipe, buffer, res);
 }
+#endif
 
 STDIO_PROVIDER(STDIO_TINYUSB_CDC_ACM, NULL, NULL, _write)