HelenOS sources

TIP                62 kernel/genarch/src/drivers/via-cuda/cuda.c 	TIP	= 0x20
TIP                97 uspace/drv/bus/adb/cuda_adb/cuda_hw.h 	TIP	= 0x20
TIP                46 uspace/srv/hid/isdv4_tablet/isdv4.c #define TIP 1
HelenOS homepage, sources at GitHub