dev_attr_user_sw 410 arch/arm/mach-davinci/board-dm644x-evm.c status = device_create_file(&client->dev, &dev_attr_user_sw); dev_attr_user_sw 437 arch/arm/mach-davinci/board-dm644x-evm.c device_remove_file(&client->dev, &dev_attr_user_sw);