DP(IV) 8/24/73 DP(IV)
NAME
dp - DP-11 201 data-phone interface
DESCRIPTION
The dp0 file is a 201 data-phone interface. Read and write
calls to dp0 are limited to a maximum of 512 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 10 second time out is set and
a zero-byte record is returned if nothing is received in
that time.
FILES
/dev/dp0
SEE ALSO
dn (IV), gerts (III)
BUGS