HelenOS sources

BIT_VAL           278 uspace/drv/bus/usb/ehci/ehci_rh.c #define BIT_VAL(val, bit)   ((val & bit) ? 1 : 0)
BIT_VAL           216 uspace/drv/bus/usb/uhci/uhci_rh.c #define BIT_VAL(val, bit) \
HelenOS homepage, sources at GitHub