Deditec USB-OPTOIN-8, Hardware Description

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DELIB API reference | Seite 68
5. DELIB API reference
5.1. Management functions
5.1.1. DapiOpenModule
Description
This function opens a particular module.
Definition
ULONG DapiOpenModule(ULONG moduleID, ULONG nr);
Parameters
moduleID=Specifies the module, which is to be opened (see delib.h)
nr=Indicates No of module which is to be opened.
nr=0 -> 1. module
nr=1 -> 2. module
Return value
handle=handle to the corresponding module
handle=0 -> Module was not found
Remarks
The handle returned by this function is needed to identify the module for all other
functions.
Example program
// USB-Modul öffnen
handle = DapiOpenModule(RO_USB1, 0);
printf("handle = %x\n", handle);
if (handle==0)
{
// USB Modul wurde nicht gefunden
printf("Modul konnte nicht geöffnet werden\n");
return;
}