SVR5 and SCO OpenServer 5
M_START, M_STOP, M_STARTI, M_STOPI --
pause or restart device output or input
The M_START and M_STOP messages
request devices to start or stop their output.
The M_STARTI and M_STOPI messages
are similar but are used to start and stop input.
They are intended to produce momentary pauses
in a device's output or input,
not to turn devices on or off.
The message format is not defined by STREAMS
and its use is developer-dependent.
These messages can be considered special cases of
an M_CTL message.
These messages cannot be generated by a user-level process,
and each is always discarded if passed to the Stream head.
1, 2, 3, 4, 5, 5mp, 6, 6mp, 7, 7mp, 7.1, 7.1mp, 8, 8mp
1, 2, 2mp, 3, 3mp, 4, 4mp, 5, 5mp
Differences between versions
M_START and M_STOP are supported on both
SCO SVR5 2.0 and SCO OpenServer 5 Release 5.
M_STARTI and M_STOPI are supported on SCO SVR5 2.0
but are not supported on SCO OpenServer 5 Release 5.
19 June 2005
© 2005 The SCO Group, Inc. All rights reserved.
OpenServer 6 and UnixWare (SVR5) HDK - June 2005