drivers/iio/industrialio-backend.c

6  * can be "linked" against one or multiple backend devices. All the IIO and
14  * | (Frontend/IIO) | Serial Data (eg: LVDS) | |(backend) |---------|          |------|     |      |
27  * the industrialio-backend.c is only left with the really generic stuff. Then,
32 #define dev_fmt(fmt) "iio-backend: " fmt
45 #include <linux/iio/backend.h>
68  * Helper macros to call backend ops. Makes sure the option is supported.
115  * iio_backend_chan_enable - Enable a backend channel
116  * @back:	Backend device
129  * iio_backend_chan_disable - Disable a backend channel
130  * @back:	Backend device
148  * devm_iio_backend_enable - Device managed backend enable
149  * @dev:	Consumer device for the backend
150  * @back:	Backend device
169  * @back:	Backend device
198  * @dev:	Consumer device for the backend
199  * @back:	Backend device
202  * Request an IIO buffer from the backend. The type of the buffer (typically
203  * INDIO_BUFFER_HARDWARE) is up to the backend to decide. This is because,
204  * normally, the backend dictates what kind of buffering we can get.
206  * The backend .free_buffer() hooks is automatically called on @dev detach.
266 	dev_dbg(dev, "Found backend(%s) device\n", dev_name(back->dev));  in __devm_iio_backend_get()
272  * devm_iio_backend_get - Device managed backend device get
273  * @dev:	Consumer device for the backend
274  * @name:	Backend name
276  * Get's the backend associated with @dev.
279  * A backend pointer, negative error pointer otherwise.
289 		ret = device_property_match_string(dev, "io-backend-names",  in devm_iio_backend_get()
324  * __devm_iio_backend_get_from_fwnode_lookup - Device managed fwnode backend device get
325  * @dev:	Consumer device for the backend
326  * @fwnode:	Firmware node of the backend device
328  * Search the backend list for a device matching @fwnode.
333  * A backend pointer, negative error pointer otherwise.
360  * @back:	Backend device
377  * devm_iio_backend_register - Device managed backend device register
378  * @dev:	Backend device being registered
379  * @ops:	Backend ops
393 		return dev_err_probe(dev, -EINVAL, "No backend ops given\n");  in devm_iio_backend_register()
397 	 * bound/exist if the backend driver is not around. Hence, we can bind  in devm_iio_backend_register()
398 	 * the backend object lifetime with the device being passed since  in devm_iio_backend_register()