SONYPI_BACK_MASK 401 drivers/char/sonypi.c { SONYPI_DEVICE_MODEL_TYPE2, 0x11, SONYPI_BACK_MASK, sonypi_backev }, SONYPI_BACK_MASK 3572 drivers/platform/x86/sony-laptop.c { 0x11, SONYPI_BACK_MASK, sonypi_backev },