inb
#define inb(p) (isa->read_io_8)(p)
#define inb(p) (*pci->read_io_8)(s->iobase + p)
#define inb(p) (*pci->read_io_8)(p)
#undef inb
#define inb(a) compiler_error
inb(u_int port)
inb(u_int port)