bus_read_8         40 bsp/drv/arm/include/busio.h #define bus_read_8(addr)	(*((volatile uint8_t *)(addr)))
bus_read_8         43 bsp/drv/ppc/include/busio.h #define bus_read_8(addr)	(*((volatile uint8_t *)(IOBASE+addr)))
bus_read_8         51 bsp/drv/x86/arch/busio.S ENTRY(bus_read_8)