pwm_class 476 drivers/pwm/sysfs.c static struct class pwm_class = { pwm_class 496 drivers/pwm/sysfs.c parent = device_create(&pwm_class, chip->dev, MKDEV(0, 0), chip, pwm_class 509 drivers/pwm/sysfs.c parent = class_find_device(&pwm_class, NULL, chip, pwm_class 527 drivers/pwm/sysfs.c return class_register(&pwm_class);