HelenOS sources

AR9271_PHY_CAL    311 uspace/drv/nic/ar9271/hw.c 	wmi_reg_read(ar9271->htc_device, AR9271_PHY_CAL, &value);
AR9271_PHY_CAL    316 uspace/drv/nic/ar9271/hw.c 	wmi_reg_write(ar9271->htc_device, AR9271_PHY_CAL, value);
HelenOS homepage, sources at GitHub