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iio: Move callback buffer to its own module

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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: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Lars-Peter Clausen 2015-08-14 16:54:54 +02:00 committed by Jonathan Cameron
parent 47d5e30ae3
commit 050ee2f16e
3 changed files with 14 additions and 2 deletions
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2
drivers/iio/Kconfig
View File

@ -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.

2
drivers/iio/Makefile
View File

@ -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

12
drivers/iio/buffer_cb.c → drivers/iio/industrialio-buffer-cb.c
View File

@ -1,4 +1,12 @@
/* 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");