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Annotation of researchv10dc/dist/man/v4/man4/dp.4, revision 1.1

1.1     ! root        1: .th DP IV 8/24/73
        !             2: .sh NAME
        !             3: dp \*- dp11 201 data-phone interface
        !             4: .sh DESCRIPTION
        !             5: The
        !             6: .it dp0
        !             7: file
        !             8: is a 201 data-phone interface.
        !             9: .it Read
        !            10: and
        !            11: .it write
        !            12: calls
        !            13: to dp0
        !            14: are limited to a maximum of 512 bytes.
        !            15: Each write call is sent as a single record.
        !            16: Seven bits from each byte
        !            17: are written along with an eighth odd parity
        !            18: bit.
        !            19: The sync must be user supplied.
        !            20: Each read call returns characters received from a
        !            21: single record.
        !            22: Seven bits are returned unaltered; the eighth bit
        !            23: is set if the byte was not received in odd parity.
        !            24: A 10 second time out is set and a zero-byte
        !            25: record is returned if nothing is received in that time.
        !            26: .sh FILES
        !            27: /dev/dp0
        !            28: .sh "SEE ALSO"
        !            29: dn(IV), gerts(III)
        !            30: .sh BUGS

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