unable to open port `/dev/ttyS1'

[marlon corleone]

/dev/ttyS1 do not exist, how do i create this device?

%sysctl kern.version
kern.version: FreeBSD 5.2-RELEASE #0: Wed Jan 28 13:17:27 PHT 2004
    ken at mmp.ccp.ph:/usr/src/sys/i386/compile/MMP

%xmms
unable to open port `/dev/ttyS1' (No such file or directory)
unable to open port `/dev/ttyS1' (No such file or directory)

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