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staging:iio: dummy driver additions to show shared_by_dir infomask usage 

Note that as this driver has output as well as output channels an
example of info_mask_shared_by_all that makes any sense does not exist.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
hifive-unleashed-5.1
Jonathan Cameron 2013-09-08 14:57:00 +01:00
parent c006ec8384
commit 6a63aa0a09
1 changed files with 16 additions and 0 deletions
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16
drivers/staging/iio/iio_simple_dummy.c
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@ -90,6 +90,11 @@ static const struct iio_chan_spec iio_dummy_channels[] = {
* when converting to standard units (microvolts)
*/
BIT(IIO_CHAN_INFO_SCALE),
/*
* sampling_frequency
* The frequency in Hz at which the channels are sampled
*/
.info_mask_shared_by_dir = BIT(IIO_CHAN_INFO_SAMP_FREQ),
/* The ordering of elements in the buffer via an enum */
.scan_index = voltage0,
.scan_type = { /* Description of storage in buffer */
@ -130,6 +135,10 @@ static const struct iio_chan_spec iio_dummy_channels[] = {
* input channels of type IIO_VOLTAGE.
*/
.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE),
/*
* sampling_frequency
* The frequency in Hz at which the channels are sampled
*/
.scan_index = diffvoltage1m2,
.scan_type = { /* Description of storage in buffer */
.sign = 's', /* signed */
@ -147,6 +156,7 @@ static const struct iio_chan_spec iio_dummy_channels[] = {
.channel2 = 4,
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE),
.info_mask_shared_by_dir = BIT(IIO_CHAN_INFO_SAMP_FREQ),
.scan_index = diffvoltage3m4,
.scan_type = {
.sign = 's',
@ -173,6 +183,7 @@ static const struct iio_chan_spec iio_dummy_channels[] = {
*/
BIT(IIO_CHAN_INFO_CALIBSCALE) |
BIT(IIO_CHAN_INFO_CALIBBIAS),
.info_mask_shared_by_dir = BIT(IIO_CHAN_INFO_SAMP_FREQ),
.scan_index = accelx,
.scan_type = { /* Description of storage in buffer */
.sign = 's', /* signed */
@ -272,6 +283,11 @@ static int iio_dummy_read_raw(struct iio_dev *indio_dev,
*val2 = st->accel_calibscale->val2;
ret = IIO_VAL_INT_PLUS_MICRO;
break;
case IIO_CHAN_INFO_SAMP_FREQ:
*val = 3;
*val2 = 33;
ret = IIO_VAL_INT_PLUS_NANO;
break;
default:
break;
}