1. 根目录:
2. drivers
3. staging
4. iio
5. dds
6. dds.h

/*
 * dds.h - sysfs attributes associated with DDS devices
 *
 * Copyright (c) 2010 Analog Devices Inc.
 *
 * Licensed under the GPL-2 or later.
 */

/**
 * /sys/bus/iio/devices/.../ddsX_freqY
 */

#define IIO_DEV_ATTR_FREQ(_channel, _num, _mode, _show, _store, _addr)	\
	IIO_DEVICE_ATTR(dds##_channel##_freq##_num,			\
			_mode, _show, _store, _addr)

/**
 * /sys/bus/iio/devices/.../ddsX_freqY_scale
 */

#define IIO_CONST_ATTR_FREQ_SCALE(_channel, _string)			\
	IIO_CONST_ATTR(dds##_channel##_freq_scale, _string)

/**
 * /sys/bus/iio/devices/.../ddsX_freqsymbol
 */

#define IIO_DEV_ATTR_FREQSYMBOL(_channel, _mode, _show, _store, _addr)	\
	IIO_DEVICE_ATTR(dds##_channel##_freqsymbol,			\
			_mode, _show, _store, _addr);

/**
 * /sys/bus/iio/devices/.../ddsX_phaseY
 */

#define IIO_DEV_ATTR_PHASE(_channel, _num, _mode, _show, _store, _addr)	\
	IIO_DEVICE_ATTR(dds##_channel##_phase##_num,			\
			_mode, _show, _store, _addr)

/**
 * /sys/bus/iio/devices/.../ddsX_phaseY_scale
 */

#define IIO_CONST_ATTR_PHASE_SCALE(_channel, _string)			\
	IIO_CONST_ATTR(dds##_channel##_phase_scale, _string)

/**
 * /sys/bus/iio/devices/.../ddsX_phasesymbol
 */

#define IIO_DEV_ATTR_PHASESYMBOL(_channel, _mode, _show, _store, _addr)	\
	IIO_DEVICE_ATTR(dds##_channel##_phasesymbol,			\
			_mode, _show, _store, _addr);

/**
 * /sys/bus/iio/devices/.../ddsX_pincontrol_en
 */

#define IIO_DEV_ATTR_PINCONTROL_EN(_channel, _mode, _show, _store, _addr)\
	IIO_DEVICE_ATTR(dds##_channel##_pincontrol_en,			\
			_mode, _show, _store, _addr);

/**
 * /sys/bus/iio/devices/.../ddsX_pincontrol_freq_en
 */

#define IIO_DEV_ATTR_PINCONTROL_FREQ_EN(_channel, _mode, _show, _store, _addr)\
	IIO_DEVICE_ATTR(dds##_channel##_pincontrol_freq_en,		\
			_mode, _show, _store, _addr);

/**
 * /sys/bus/iio/devices/.../ddsX_pincontrol_phase_en
 */

#define IIO_DEV_ATTR_PINCONTROL_PHASE_EN(_channel, _mode, _show, _store, _addr)\
	IIO_DEVICE_ATTR(dds##_channel##_pincontrol_phase_en,		\
			_mode, _show, _store, _addr);

/**
 * /sys/bus/iio/devices/.../ddsX_out_enable
 */

#define IIO_DEV_ATTR_OUT_ENABLE(_channel, _mode, _show, _store, _addr)	\
	IIO_DEVICE_ATTR(dds##_channel##_out_enable,			\
			_mode, _show, _store, _addr);

/**
 * /sys/bus/iio/devices/.../ddsX_outY_enable
 */

#define IIO_DEV_ATTR_OUTY_ENABLE(_channel, _output,			\
			_mode, _show, _store, _addr)			\
	IIO_DEVICE_ATTR(dds##_channel##_out##_output##_enable,		\
			_mode, _show, _store, _addr);

/**
 * /sys/bus/iio/devices/.../ddsX_outY_wavetype
 */

#define IIO_DEV_ATTR_OUT_WAVETYPE(_channel, _output, _store, _addr)	\
	IIO_DEVICE_ATTR(dds##_channel##_out##_output##_wavetype,	\
			S_IWUSR, NULL, _store, _addr);

/**
 * /sys/bus/iio/devices/.../ddsX_outY_wavetype_available
 */

#define IIO_CONST_ATTR_OUT_WAVETYPES_AVAILABLE(_channel, _output, _modes)\
	IIO_CONST_ATTR(dds##_channel##_out##_output##_wavetype_available,\
			_modes);