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Commit ae19178e authored by Michael Hennerich's avatar Michael Hennerich Committed by Greg Kroah-Hartman
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iio: industrialio-core: Add IIO_OUT type 



Add IIO_OUT type for DAC like devices
In case of IIO_OUT make sure the channel device attribute is writable

Ideally we add a flag to iio_chan_spec that tells the core that
the channel device attribute is writable...

Signed-off-by: default avatarMichael Hennerich <michael.hennerich@analog.com>
Acked-by: default avatarJonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 88bc3054

drivers/staging/iio/iio.h

+1 −0
Original line number Diff line number Diff line
@@ -30,6 +30,7 @@ 
enum iio_chan_type {

	/* real channel types */

	IIO_IN,

	IIO_OUT,

	IIO_CURRENT,

	IIO_POWER,

	IIO_ACCEL,

drivers/staging/iio/industrialio-core.c

+3 −1
Original line number Diff line number Diff line
@@ -47,6 +47,7 @@ static const char * const iio_chan_type_name_spec_shared[] = { 
	[IIO_TIMESTAMP] = "timestamp",

	[IIO_ACCEL] = "accel",

	[IIO_IN] = "in",

	[IIO_OUT] = "out",

	[IIO_CURRENT] = "current",

	[IIO_POWER] = "power",

	[IIO_IN_DIFF] = "in-in",
@@ -675,7 +676,8 @@ static int iio_device_add_channel_sysfs(struct iio_dev *dev_info, 
	else

		ret = __iio_add_chan_devattr("raw", NULL, chan,

					     &iio_read_channel_info,

					     NULL,

					     (chan->type == IIO_OUT ?

					     &iio_write_channel_info : NULL),

					     0,

					     0,

					     &dev_info->dev,