dev_attr_fb_update_rate 555 drivers/hid/hid-picolcd_fb.c error = device_create_file(dev, &dev_attr_fb_update_rate); dev_attr_fb_update_rate 570 drivers/hid/hid-picolcd_fb.c device_remove_file(dev, &dev_attr_fb_update_rate); dev_attr_fb_update_rate 591 drivers/hid/hid-picolcd_fb.c device_remove_file(&data->hdev->dev, &dev_attr_fb_update_rate);