zd_ioread16_locked
r = zd_ioread16_locked(chip, &version,
r = zd_ioread16_locked(chip, (u16*)&chip->fw_regs_base,
r = zd_ioread16_locked(chip, value, addr);
r = zd_ioread16_locked(chip, &value, E2P_PHY_REG);
r = zd_ioread16_locked(chip, &intr_status, UW2453_INTR_REG);