Commit 5bc2ea60 authored by Javier Carrasco's avatar Javier Carrasco Committed by Jonathan Cameron
Browse files

iio: core: introduce trough info element for minimum values 



The IIO_CHAN_INFO_PEAK info element is used for maximum values and
currently there is no equivalent for minimum values. Instead of
overloading the existing peak info element, a new info element can
be added.

In principle there is no need to add a _TROUGH_SCALE element as the
scale will be the same as the one required for INFO_PEAK, which in
turn is sometimes omitted if a single scale for peaks and raw values
is required.

Add an IIO_CHAN_INFO_TROUGH info element for minimum values.

Signed-off-by: default avatarJavier Carrasco <javier.carrasco.cruz@gmail.com>
Link: https://lore.kernel.org/r/20231211122747.9723-1-579lpy@gmail.com


Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
parent 8b0d4c40

drivers/iio/industrialio-core.c

+1 −0
Original line number Diff line number Diff line
@@ -184,6 +184,7 @@ static const char * const iio_chan_info_postfix[] = { 
	[IIO_CHAN_INFO_THERMOCOUPLE_TYPE] = "thermocouple_type",

	[IIO_CHAN_INFO_CALIBAMBIENT] = "calibambient",

	[IIO_CHAN_INFO_ZEROPOINT] = "zeropoint",

	[IIO_CHAN_INFO_TROUGH] = "trough_raw",

};

/**

 * iio_device_id() - query the unique ID for the device

include/linux/iio/types.h

+1 −0
Original line number Diff line number Diff line
@@ -68,6 +68,7 @@ enum iio_chan_info_enum { 
	IIO_CHAN_INFO_THERMOCOUPLE_TYPE,

	IIO_CHAN_INFO_CALIBAMBIENT,

	IIO_CHAN_INFO_ZEROPOINT,

	IIO_CHAN_INFO_TROUGH,

};



#endif /* _IIO_TYPES_H_ */