On Tue, Dec 28, 2021 at 08:15:54PM +0100, Andrzej Peszynski wrote:
> I am trying to use onboard RS-232 @ supermicro A1Sai-2750 with Intel C2750,
> Devuan Chimaera, vanilla kernel 5.10.0-10-amd64. In BIOS the ports COM1 and
> COM2 are configured on 24MHz/13.
24MHz/13 makes no sense here, unless you're trying to use an IrCOMM
device. If the serial section of your UEFI/BIOS has IRDA support, you
want to disable that if you just want to use a standard serial port.
Greg
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