Endpoint Interface

Using the Endpoint Interface

All option data you set gets packed together into one block of data. Each option
within this block must be long-word aligned for the communication tools. So,
when using the

'template

data form, you need to use the

'struct

type (at the

beginning of the

typelist

array) to guarantee that the option is long-word

aligned and padded. To set the serial input/output parameters, for instance, the
option frame might look like this:

serialIOParms := {

type: 'option,
label: kCMOSerialIOParms,
opCode: opSetNegotiate,
data: {

arglist: [

kNoParity, //

parity

k1StopBits, // stopBits
k8DataBits, // dataBits
k9600bps, //

bps

],
typelist: [

'struct,
'uLong,
'long,
'long,
'long

]

}

};

To get the connection information, the option frame you construct might look like this:

connectInfoParms := {

type: 'option,
label: kCMOSerialIOParms,
opCode: opGetCurrent,
data: {

arglist: [

0, // parity placeholder
0, // stopBits placeholder
0, // dataBits placeholder
0, // bps placeholder

],
typelist: [

'struct,
'ulong,
'long,