stm32/uart: fix embedded_io::Write impl for BufferedUartTx#6535
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xoviat merged 2 commits intoJul 17, 2026
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leftger
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Jul 17, 2026
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The current implementation of
embedded_io::Writefor theBufferUartTxdriver basically implementedwrite_allinstead ofwrite. The main difference being thatwriteshould not block until the whole buffer has been written, rather it should never block if it can write at least one byte.While at it, I also implemented the
embedded_io::WriteReadytrait. Together, these changes enable non-blocking writes to the UART.