HelenOS sources

tag               155 uspace/lib/usb/include/usb/usb.h #define _MAKE_PID_NIBBLE(tag, type) \
tag               156 uspace/lib/usb/include/usb/usb.h 	((uint8_t)(((tag) << 2) | (type)))
tag               157 uspace/lib/usb/include/usb/usb.h #define _MAKE_PID(tag, type) \
tag               159 uspace/lib/usb/include/usb/usb.h 	    _MAKE_PID_NIBBLE(tag, type) \
tag               160 uspace/lib/usb/include/usb/usb.h 	    | (((~_MAKE_PID_NIBBLE(tag, type)) & 0xf) << 4) \