Asynchronous Serial Communications Programmer's Reference Manual (32022-90052)

170 Chapter8
Intrinsics Reference
FCONTROL(10, 11)
When a device is initially opened programmatically, the
speed is set to the default speed of the device. If a
device is opened as a log on device (and the device was
configured with speed and parity sensing enabled), the
speed setting is sensed from the speed of the first
carriage return character received. The default speed of
a device is configured through the Node Management
Configuration Manager (NMMGR), or through the
OpenView DTC Manager, for networks managed by an
OpenView workstation. You must reconfigure the
device to permanently effect a change to the configured
speed.
Condition Codes
CCE Request granted.
CCG Not returned by this intrinsic.
CCL Request failed because the process does not own the
logical device, the device is not a terminal/printer, or
the speed entered is not supported.
Additional Discussion
See FCONTROL(37) and FCONTROL(40) in this manual.