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Diffstat (limited to 'static/unix-v10/man4/dp.4')
| -rw-r--r-- | static/unix-v10/man4/dp.4 | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/static/unix-v10/man4/dp.4 b/static/unix-v10/man4/dp.4 new file mode 100644 index 00000000..f35898c7 --- /dev/null +++ b/static/unix-v10/man4/dp.4 @@ -0,0 +1,32 @@ +.pa 1 +.he 'DP (IV)'3/15/72'DP (IV)' +.ti 0 +NAME dp -- dp-11 201 data-phone interface +.sp +.ti 0 +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. +.sp +.ti 0 +FILES /dev/dp0 201 dataphone used to call GCOS +.sp +.ti 0 +SEE ALSO dn(IV), gerts(III) +.sp +.ti 0 +BUGS The dp__ file is +GCOS oriented. +It should be more flexible. |