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On Time RTOS-32 Documentation

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RTTarget-32

RTKernel-32

RTKernel-32 Programming Manual

RTKernel-32 Reference Manual

Module RTKernel-32

Module FineTime

Module Clock

Module Timer

Module RTCom

Function COMSetBoardType

Function COMSetIOBase

Function COMSetIRQ

Function COMPortInit

Function COMHasFIFO

Function COMEnableFIFO

Function COMSetProtocol

Function COMAllocateBuffers

Function COMEnableInterrupt

Function COMDisableInterrupt

Function COMSendChar

Function COMSendCharTimed

Function COMSendBlock

Function COMSendBlockTimed

Function COMWaitSendBufferEmpty

Function COMSetModemStatusHook

Function COMReceiveCharPolled

Function COMSendCharPolled

Function COMLineStatus

Function COMModemStatus

Function COMModemControl

Function COMError

Module RTKeybrd

Module RTTextIO

Module CPUMoni

Module RTProf

RTFiles-32

RTIP-32

RTPEG-32

RTUSB-32
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Function COMSetModemStatusHook

COMSetModemStatusHook installs an application function to be called on every modem status line change:

void COMSetModemStatusHook(int Port, 
                           void (* __cdecl Hook)(int Port, BYTE Status));

Parameters

Port

The port for which to install the hook function.

Hook

Pointer to the hook function.

Such a modem status hook may be used to trap the change of modem status signals, such as Data Carrier or Ring Indicator. Apart from the port number, the hook is called with the new modem status value. The hook is called in the context of an interrupt handler. COMEnableInterrupt must have been called for the hook to take effect.

UpFunction COMWaitSendBufferEmpty

DownFunction COMReceiveCharPolled

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