mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-27 11:19:37 +00:00
![Lukas Wunner](/assets/img/avatar_default.png)
The GPIO core provides a handy GPIO_LOOKUP() macro to populate a struct gpiod_lookup array without having to spell out attribute names (but still avoid breakage when attributes within the struct are rearranged or added). The axp288_adc.c driver uses a similar macro to populate a struct iio_map array. Make it available to others. Cc: Jacob Pan <jacob.jun.pan@linux.intel.com> Signed-off-by: Lukas Wunner <lukas@wunner.de> Acked-by: Chen-Yu Tsai <wens@csie.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
38 lines
1.2 KiB
C
38 lines
1.2 KiB
C
/*
|
|
* Industrial I/O in kernel access map definitions for board files.
|
|
*
|
|
* Copyright (c) 2011 Jonathan Cameron
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License version 2 as published by
|
|
* the Free Software Foundation.
|
|
*/
|
|
|
|
#ifndef __LINUX_IIO_MACHINE_H__
|
|
#define __LINUX_IIO_MACHINE_H__
|
|
|
|
/**
|
|
* struct iio_map - description of link between consumer and device channels
|
|
* @adc_channel_label: Label used to identify the channel on the provider.
|
|
* This is matched against the datasheet_name element
|
|
* of struct iio_chan_spec.
|
|
* @consumer_dev_name: Name to uniquely identify the consumer device.
|
|
* @consumer_channel: Unique name used to identify the channel on the
|
|
* consumer side.
|
|
* @consumer_data: Data about the channel for use by the consumer driver.
|
|
*/
|
|
struct iio_map {
|
|
const char *adc_channel_label;
|
|
const char *consumer_dev_name;
|
|
const char *consumer_channel;
|
|
void *consumer_data;
|
|
};
|
|
|
|
#define IIO_MAP(_provider_channel, _consumer_dev_name, _consumer_channel) \
|
|
{ \
|
|
.adc_channel_label = _provider_channel, \
|
|
.consumer_dev_name = _consumer_dev_name, \
|
|
.consumer_channel = _consumer_channel, \
|
|
}
|
|
|
|
#endif
|