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We have a couple of thermocouple IIO drivers, supporting several chips. Some of them support only one specific thermocouple type (e.g. "K", "J"), one of them can be configured to work with several different thermocouple types. In certain applications thermocouples could be externally connected to the chip by the user. This patch introduces a new IIO standard attribute to report the supported thermocouple type and, where applicable, to allow it to be dynamically set using sysfs. Cc: Hartmut Knaack <knaack.h@gmx.de> Cc: Lars-Peter Clausen <lars@metafoo.de> Cc: Peter Meerwald-Stadler <pmeerw@pmeerw.net> Cc: Colin Ian King <colin.king@canonical.com> Cc: Patrick Havelange <patrick.havelange@essensium.com> Cc: Matt Weber <matthew.weber@rockwellcollins.com> Cc: Matt Ranostay <matt.ranostay@konsulko.com> Cc: Chuhong Yuan <hslester96@gmail.com> Cc: Daniel Gomez <dagmcr@gmail.com> Cc: linux-iio@vger.kernel.org Signed-off-by: Andrea Merello <andrea.merello@gmail.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
64 lines
1.5 KiB
C
64 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/* industrial I/O data types needed both in and out of kernel
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*
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* Copyright (c) 2008 Jonathan Cameron
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*/
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#ifndef _IIO_TYPES_H_
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#define _IIO_TYPES_H_
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#include <uapi/linux/iio/types.h>
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enum iio_event_info {
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IIO_EV_INFO_ENABLE,
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IIO_EV_INFO_VALUE,
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IIO_EV_INFO_HYSTERESIS,
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IIO_EV_INFO_PERIOD,
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IIO_EV_INFO_HIGH_PASS_FILTER_3DB,
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IIO_EV_INFO_LOW_PASS_FILTER_3DB,
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};
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#define IIO_VAL_INT 1
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#define IIO_VAL_INT_PLUS_MICRO 2
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#define IIO_VAL_INT_PLUS_NANO 3
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#define IIO_VAL_INT_PLUS_MICRO_DB 4
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#define IIO_VAL_INT_MULTIPLE 5
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#define IIO_VAL_FRACTIONAL 10
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#define IIO_VAL_FRACTIONAL_LOG2 11
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#define IIO_VAL_CHAR 12
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enum iio_available_type {
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IIO_AVAIL_LIST,
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IIO_AVAIL_RANGE,
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};
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enum iio_chan_info_enum {
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IIO_CHAN_INFO_RAW = 0,
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IIO_CHAN_INFO_PROCESSED,
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IIO_CHAN_INFO_SCALE,
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IIO_CHAN_INFO_OFFSET,
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IIO_CHAN_INFO_CALIBSCALE,
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IIO_CHAN_INFO_CALIBBIAS,
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IIO_CHAN_INFO_PEAK,
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IIO_CHAN_INFO_PEAK_SCALE,
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IIO_CHAN_INFO_QUADRATURE_CORRECTION_RAW,
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IIO_CHAN_INFO_AVERAGE_RAW,
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IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY,
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IIO_CHAN_INFO_HIGH_PASS_FILTER_3DB_FREQUENCY,
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IIO_CHAN_INFO_SAMP_FREQ,
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IIO_CHAN_INFO_FREQUENCY,
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IIO_CHAN_INFO_PHASE,
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IIO_CHAN_INFO_HARDWAREGAIN,
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IIO_CHAN_INFO_HYSTERESIS,
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IIO_CHAN_INFO_INT_TIME,
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IIO_CHAN_INFO_ENABLE,
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IIO_CHAN_INFO_CALIBHEIGHT,
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IIO_CHAN_INFO_CALIBWEIGHT,
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IIO_CHAN_INFO_DEBOUNCE_COUNT,
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IIO_CHAN_INFO_DEBOUNCE_TIME,
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IIO_CHAN_INFO_CALIBEMISSIVITY,
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IIO_CHAN_INFO_OVERSAMPLING_RATIO,
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IIO_CHAN_INFO_THERMOCOUPLE_TYPE,
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};
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#endif /* _IIO_TYPES_H_ */
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