diff options
Diffstat (limited to 'drivers/iio/iio_core_trigger.h')
-rw-r--r-- | drivers/iio/iio_core_trigger.h | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/drivers/iio/iio_core_trigger.h b/drivers/iio/iio_core_trigger.h new file mode 100644 index 000000000..e1a56824e --- /dev/null +++ b/drivers/iio/iio_core_trigger.h @@ -0,0 +1,59 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ + +/* The industrial I/O core, trigger consumer handling functions + * + * Copyright (c) 2008 Jonathan Cameron + */ + +#ifdef CONFIG_IIO_TRIGGER +/** + * iio_device_register_trigger_consumer() - set up an iio_dev to use triggers + * @indio_dev: iio_dev associated with the device that will consume the trigger + * + * Return 0 if successful, negative otherwise + **/ +int iio_device_register_trigger_consumer(struct iio_dev *indio_dev); + +/** + * iio_device_unregister_trigger_consumer() - reverse the registration process + * @indio_dev: iio_dev associated with the device that consumed the trigger + **/ +void iio_device_unregister_trigger_consumer(struct iio_dev *indio_dev); + + +int iio_trigger_attach_poll_func(struct iio_trigger *trig, + struct iio_poll_func *pf); +int iio_trigger_detach_poll_func(struct iio_trigger *trig, + struct iio_poll_func *pf); + +#else + +/** + * iio_device_register_trigger_consumer() - set up an iio_dev to use triggers + * @indio_dev: iio_dev associated with the device that will consume the trigger + **/ +static inline int iio_device_register_trigger_consumer(struct iio_dev *indio_dev) +{ + return 0; +} + +/** + * iio_device_unregister_trigger_consumer() - reverse the registration process + * @indio_dev: iio_dev associated with the device that consumed the trigger + **/ +static inline void iio_device_unregister_trigger_consumer(struct iio_dev *indio_dev) +{ +} + +static inline int iio_trigger_attach_poll_func(struct iio_trigger *trig, + struct iio_poll_func *pf) +{ + return 0; +} +static inline int iio_trigger_detach_poll_func(struct iio_trigger *trig, + struct iio_poll_func *pf) +{ + return 0; +} + +#endif /* CONFIG_TRIGGER_CONSUMER */ |