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clean up handling of USB-CDC Serial

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when ARDUINO_USB_CDC_ON_BOOT is set, USB-CDC pins are always assigned to 'Serial'.
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Frank
2025-11-16 14:05:30 +01:00
parent 53130f7216
commit 5b52ee612f
1 changed files with 4 additions and 1 deletions
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5
wled00/wled_serial.cpp
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@@ -93,9 +93,12 @@ bool canUseSerial(void) { // WLEDMM returns true if Serial can be used for deb
void handleSerial()
{
#if !ARDUINO_USB_CDC_ON_BOOT
// some USB-CDC boards.json set RX and TX to the USB+ and USB- pins. These pins cannot be assigned to other purposes, so always availeable
if (pinManager.isPinAllocated(hardwareRX)) return;
if (!Serial) return; // arduino docs: `if (Serial)` indicates whether or not the USB CDC serial connection is open. For all non-USB CDC ports, this will always return true
#endif
if (((pinManager.isPinAllocated(hardwareTX)) && (pinManager.getPinOwner(hardwareTX) != PinOwner::DebugOut))) return; // WLEDMM serial TX is necessary for adalight / TPM2
if (!Serial) return; // arduino docs: `if (Serial)` indicates whether or not the USB CDC serial connection is open. For all non-USB CDC ports, this will always return true
#ifdef WLED_ENABLE_ADALIGHT
static auto state = AdaState::Header_A;