All symbols starting with `p' in iokit/IOKit/usb

• pFrames iokit/IOKit/usb/USB.h:193
• PRE_INST_SCAFFOLD iokit/IOKit/usb/Makefile:44
• public iokit/IOKit/usb/IOUSBBus.h:44
• pwrCtlPortFlags iokit/IOKit/usb/USBHub.h:130