Commit 41fd935b authored by Lars-Peter Clausen's avatar Lars-Peter Clausen Committed by Greg Kroah-Hartman
Browse files

staging:iio: Add IIO_CHAN_INFO_RAW entries to the dummy driver 



Precursor to making value read / write attribute optional.
No processed values in resolvers at the moment.

Signed-off-by: default avatarLars-Peter Clausen <lars@metafoo.de>
Acked-by: default avatarJonathan Cameron <jic23@kernel.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent e33e0750

drivers/staging/iio/iio_simple_dummy.c

+17 −2
Original line number Diff line number Diff line
@@ -72,6 +72,12 @@ static struct iio_chan_spec iio_dummy_channels[] = { 
		.channel = 0,

		/* What other information is available? */

		.info_mask =

		/*

		 * in_voltage0_raw

		 * Raw (unscaled no bias removal etc) measurement

		 * from the device.

		 */

		IIO_CHAN_INFO_RAW_SEPARATE_BIT |

		/*

		 * in_voltage0_offset

		 * Offset for userspace to apply prior to scale
@@ -113,6 +119,12 @@ static struct iio_chan_spec iio_dummy_channels[] = { 
		.channel = 1,

		.channel2 = 2,

		.info_mask =

		/*

		 * in_voltage1-voltage2_raw

		 * Raw (unscaled no bias removal etc) measurement

		 * from the device.

		 */

		IIO_CHAN_INFO_RAW_SEPARATE_BIT |

		/*

		 * in_voltage-voltage_scale

		 * Shared version of scale - shared by differential
@@ -135,6 +147,7 @@ static struct iio_chan_spec iio_dummy_channels[] = { 
		.channel = 3,

		.channel2 = 4,

		.info_mask =

		IIO_CHAN_INFO_RAW_SEPARATE_BIT |

		IIO_CHAN_INFO_SCALE_SHARED_BIT,

		.scan_index = diffvoltage3m4,

		.scan_type = {
@@ -154,6 +167,7 @@ static struct iio_chan_spec iio_dummy_channels[] = { 
		/* Channel 2 is use for modifiers */

		.channel2 = IIO_MOD_X,

		.info_mask =

		IIO_CHAN_INFO_RAW_SEPARATE_BIT |

		/*

		 * Internal bias correction value. Applied

		 * by the hardware or driver prior to userspace
@@ -177,6 +191,7 @@ static struct iio_chan_spec iio_dummy_channels[] = { 
	/* DAC channel out_voltage0_raw */

	{

		.type = IIO_VOLTAGE,

		.info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT,

		.output = 1,

		.indexed = 1,

		.channel = 0,
@@ -203,7 +218,7 @@ static int iio_dummy_read_raw(struct iio_dev *indio_dev, 


	mutex_lock(&st->lock);

	switch (mask) {

	case 0: /* magic value - channel value read */

	case IIO_CHAN_INFO_RAW: /* magic value - channel value read */

		switch (chan->type) {

		case IIO_VOLTAGE:

			if (chan->output) {
@@ -290,7 +305,7 @@ static int iio_dummy_write_raw(struct iio_dev *indio_dev, 
	struct iio_dummy_state *st = iio_priv(indio_dev);



	switch (mask) {

	case 0:

	case IIO_CHAN_INFO_RAW:

		if (chan->output == 0)

			return -EINVAL;

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