Random thoughts and scribblings I have all written in C.
fast_rgba_to_bgra -> Experimenting with bitfields for "simple" RGBA->BGRA and back conversions using as little memory as possible
usbmuxd_list -> A simple program to connect to usbmuxd and list all currently connected devices
usbmuxd_monitor -> A simple program that prints to stdout when an iOS device is connected/disconnected using usbmuxd