PIR
case PIR:
ret = get_param_u(dev, PIR, &get);
err = set_param_u(dev, PIR, val);
case PIR:
ravb_modify(priv->ndev, PIR, mask, set ? mask : 0);
return (ravb_read(priv->ndev, PIR) & PIR_MDI) != 0;
[PIR] = 0x0320,
[PIR] = 0x0120,
add_reg(PIR);
[PIR] = 0x016c,
bitbang->addr = mdp->addr + mdp->reg_offset[PIR];
[PIR] = 0x0520,