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Re: Looking for an example program / objective-C foundation tool which maintains a run loop & monitors USB.

Here you go, this is a simple example that will print the names of devices you plug in out. Obviously runs form the command line. just create a new C++ tool project in XCode, then don't forget to add the IOKit framework.

I suspect you can add/modify from here what you need.
(quickly threw this together...so as usual add proper error checking and such where required)

Kevin


#include <iostream>
#include <CoreFoundation/CoreFoundation.h>

#include <IOKit/usb/IOUSBLib.h>

void deviceUSBMatchedCallBack(
void *refcon,
io_iterator_t iterator );
int main (int argc, char * const argv[]) {
mach_port_t masterPort;
IOReturn err;
err=IOMasterPort(MACH_PORT_NULL,&masterPort);
if(err!=kIOReturnSuccess)
{
std::cout<<"Could not get masterport."<<std::endl;
return(-1);
}
CFDictionaryRef matchingDict=IOServiceMatching("IOUSBDevice");
io_iterator_t it;
IONotificationPortRef notifyPort;
CFRunLoopSourceRef notifySource;
notifyPort = IONotificationPortCreate( masterPort );
notifySource = IONotificationPortGetRunLoopSource( notifyPort );
CFRunLoopAddSource( CFRunLoopGetCurrent(), notifySource,
kCFRunLoopDefaultMode );
bool t=false;

IOServiceAddMatchingNotification(notifyPort,kIOMatchedNotification,matchingDict,deviceUSBMatchedCallBack,&t,&it);
deviceUSBMatchedCallBack(&t,it);
t=true;
CFRunLoopRun();
return 0;
}

void deviceUSBMatchedCallBack(
   void *refcon,
   io_iterator_t iterator )
{
 bool t=*(bool*)refcon;

io_object_t device;
io_struct_inband_t buffer1;
unsigned int size1=4096;
while ( (device = IOIteratorNext( iterator ) ) != 0 )
{
if(t)
{
IORegistryEntryGetProperty(device,"USB Product Name",buffer1,&size1);
std::cout<<buffer1<<std::endl;
}
}
} 

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References: 
 >Looking for an example program / objective-C foundation tool which maintains a run loop & monitors USB. (From: George Lawrence Storm <email@hidden>)



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