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Fixes HardwareSerial::availableForWrite + setTxBufferSize #6998

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Merged
merged 2 commits into from
Aug 8, 2022
Merged

Fixes HardwareSerial::availableForWrite + setTxBufferSize #6998

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d922396
Fixes HardwareSerial::availableForWrite + setTxBufferSize
SuGlider Jul 16, 2022
8e7a8a8
Merge branch 'master' into availableForWrite
SuGlider Aug 8, 2022
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4 changes: 4 additions & 0 deletions cores/esp32/esp32-hal-uart.c
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Original file line number Diff line number Diff line change
Expand Up @@ -238,6 +238,10 @@ uint32_t uartAvailableForWrite(uart_t* uart)
}
UART_MUTEX_LOCK();
uint32_t available = uart_ll_get_txfifo_len(UART_LL_GET_HW(uart->num));
size_t txRingBufferAvailable = 0;
if (ESP_OK == uart_get_tx_buffer_free_size(uart->num, &txRingBufferAvailable)) {
available += txRingBufferAvailable;
}
UART_MUTEX_UNLOCK();
return available;
}
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