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Commit 050ee2f1 authored by Lars-Peter Clausen's avatar Lars-Peter Clausen Committed by Jonathan Cameron
Browse files

iio: Move callback buffer to its own module 



Currently the IIO callback buffer implementation is directly built into the
IIO core module when enabled. Given that the callback buffer module is
standalone functionallity there is really no reason to do this. So move it
to its own module.

Also rename the source to follow the standard IIO module naming convention
as well as add a license notice to the file.

Signed-off-by: default avatarLars-Peter Clausen <lars@metafoo.de>
Signed-off-by: default avatarJonathan Cameron <jic23@kernel.org>
parent 47d5e30a

drivers/iio/Kconfig

+1 −1
Original line number Diff line number Diff line
@@ -21,7 +21,7 @@ config IIO_BUFFER 
if IIO_BUFFER



config IIO_BUFFER_CB

	bool "IIO callback buffer used for push in-kernel interfaces"

	tristate "IIO callback buffer used for push in-kernel interfaces"

	help

	  Should be selected by any drivers that do in-kernel push

	  usage.  That is, those where the data is pushed to the consumer.

drivers/iio/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -6,8 +6,8 @@ obj-$(CONFIG_IIO) += industrialio.o 
industrialio-y := industrialio-core.o industrialio-event.o inkern.o

industrialio-$(CONFIG_IIO_BUFFER) += industrialio-buffer.o

industrialio-$(CONFIG_IIO_TRIGGER) += industrialio-trigger.o

industrialio-$(CONFIG_IIO_BUFFER_CB) += buffer_cb.o



obj-$(CONFIG_IIO_BUFFER_CB) += industrialio-buffer-cb.o

obj-$(CONFIG_IIO_TRIGGERED_BUFFER) += industrialio-triggered-buffer.o

obj-$(CONFIG_IIO_KFIFO_BUF) += kfifo_buf.o

drivers/iio/buffer_cb.c→drivers/iio/industrialio-buffer-cb.c

+12 −0
Original line number Diff line number Diff line 
/* The industrial I/O callback buffer

 *

 * 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.

 */



#include <linux/kernel.h>

#include <linux/module.h>

#include <linux/slab.h>

#include <linux/err.h>

#include <linux/export.h>
@@ -124,3 +132,7 @@ struct iio_channel 
	return cb_buffer->channels;

}

EXPORT_SYMBOL_GPL(iio_channel_cb_get_channels);



MODULE_AUTHOR("Jonathan Cameron <jic23@kernel.org>");

MODULE_DESCRIPTION("Industrial I/O callback buffer");

MODULE_LICENSE("GPL");