sisusb_setidxregandor
return sisusb_setidxregandor(sisusb, port, index, 0xff, myor);
return sisusb_setidxregandor(sisusb, port, idx, myand, 0x00);
#define SETIREGANDOR(r, i, a, o) sisusb_setidxregandor(sisusb, r, i, a, o)
retval = sisusb_setidxregandor(sisusb, port, y->data0,