From 41fd935b1812b9d811911a85d5893493f5ec774a Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Sun, 15 Apr 2012 17:41:27 +0100 Subject: [PATCH] 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: Lars-Peter Clausen Acked-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- drivers/staging/iio/iio_simple_dummy.c | 19 +++++++++++++++++-- 1 file changed, 17 insertions(+), 2 deletions(-) diff --git a/drivers/staging/iio/iio_simple_dummy.c b/drivers/staging/iio/iio_simple_dummy.c index e3a94572bb40..dbeb04c70f0f 100644 --- a/drivers/staging/iio/iio_simple_dummy.c +++ b/drivers/staging/iio/iio_simple_dummy.c @@ -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;