iokit

IOHIDEventSystemCreate always return NULL on iOS6 (work fine on iOS5). Anyone know why? Example on iPhoneDevWiki #include <IOKit/hid/IOHIDEventSystem.h> #include <stdio.h> void handle_event (void* target, void* refcon, IOHIDServiceRef service, IOHIDEventRef event) { // handle the events here. printf("Received event of type %2d from service %p.\n", IOHIDEventGetType(event), service); } int main () { // Create and open an event system. IOHIDEventSystemRef system = IOHIDEventSystemCreate(NULL); IOHIDEventSystemOpen(system, handle_event, NULL, NULL, NULL); printf("HID Event system should now be

I'd like to get mouse movements in high resolution and high framerate on OSX. "High framerate" = 60 fps or higher (preferably > 120) "High resolution" = Subpixel values Problem I've got an opengl view running at about the monitor refresh rate, so it's ~60 fps. I use the mouse to look around, so I've hidden the mouse cursor and I'm relying on mouse delta values. The problem is the mouse events come in at much too low framerate, and values are snapped to integer (whole pixels). This causes a "choppy" viewing experience. Here's a visualization of mouse delta values over time: mouse delta X ^ xx 2

I was wondered to know how to get serial number of a device using IOKit in iOS8? I used UIDevice+serialNumber and I am able to get serial number in iOS6 and7. In iOS8 value of platformSerialNumber is coming nil in the following line: CFTypeRef platformSerialNumber = IORegistryEntryCreateCFProperty(platformExpertDevice,CFSTR("IOPlatformSerialNumber"), kCFAllocatorDefault, 0); I am using : https://gist.github.com/0xced/566994 Note:My app will not go to app store, its for inhouse. So I am looking for something more concrete that will never change, either String or integer Starting in iOS 8,

I have a limited exposure to the Mac OS X operating system and now I have started using Xcode and am studying about I/O kit. I need to create a program in Xcode under command line tool in order to list all USB devices connected in a Mac system. Those who have previous experience under this, please help me. If anyone could provide me with sample code then it will be of great use, as I am looking for starting point. Hasturkun You can adapt USBPrivateDataSample to your needs, the sample sets up a notifier, lists the currently attached devices, then waits for device attach/detach. If you do, you