TPACPI_VOL_MODE_ECNVRAM 7270 drivers/platform/x86/thinkpad_acpi.c if (volume_mode != TPACPI_VOL_MODE_ECNVRAM) TPACPI_VOL_MODE_ECNVRAM 7775 drivers/platform/x86/thinkpad_acpi.c volume_mode = TPACPI_VOL_MODE_ECNVRAM;