DP (IV) 3/15/72 DP (IV) NAME dp -- dp-11 201 data-phone interface DESCRIPTION dp? is a 201 data-phone interface file. read and write calls to dp? are limited to a maximum of 400 bytes. Each write call is sent as a single record. Seven bits from each byte are written along with an eighth odd parity bit. The sync must be user supplied. Each read call returns characters received from a single record. Seven bits are returned unaltered; the eighth bit is set if the byte was not received in odd parity. A 20 second time out is set and a zero byte record is returned if nothing is received in that time. FILES /dev/dp0 201 dataphone used to call GCOS SEE ALSO dn(IV), gerts(III) BUGS The dp file is GCOS oriented. It should be more flexible.