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authorJin Feng <jin88.feng@gmail.com>2013-04-05 05:51:00 +0100
committerJonathan Cameron <jic23@kernel.org>2013-04-09 18:29:52 +0100
commitff3fc8eb470ff0e47466c291148a30f958d6691d (patch)
tree6ec3b220e5bf47f3df66373b54526ccc64b75c8f /drivers/staging/iio
parent9f16778c5d0a32f264812a9bf1602b71613720b8 (diff)
staging:iio:dummy: Fix mismatch and export sysfs entry
Correct the mismatch bewteen calibscale and calibbias, and export the in_accel_calibscale sysfs entry Updated to apply to current tree. Signed-off-by: Jin Feng <jin88.feng@gmail.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/staging/iio')
-rw-r--r--drivers/staging/iio/iio_simple_dummy.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/staging/iio/iio_simple_dummy.c b/drivers/staging/iio/iio_simple_dummy.c
index 0193e1796b1..0e8e02a3cf5 100644
--- a/drivers/staging/iio/iio_simple_dummy.c
+++ b/drivers/staging/iio/iio_simple_dummy.c
@@ -166,11 +166,12 @@ static const struct iio_chan_spec iio_dummy_channels[] = {
.channel2 = IIO_MOD_X,
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
/*
- * Internal bias correction value. Applied
+ * Internal bias and gain correction values. Applied
* by the hardware or driver prior to userspace
* seeing the readings. Typically part of hardware
* calibration.
*/
+ BIT(IIO_CHAN_INFO_CALIBSCALE) |
BIT(IIO_CHAN_INFO_CALIBBIAS),
.scan_index = accelx,
.scan_type = { /* Description of storage in buffer */
@@ -311,7 +312,7 @@ static int iio_dummy_write_raw(struct iio_dev *indio_dev,
st->dac_val = val;
mutex_unlock(&st->lock);
return 0;
- case IIO_CHAN_INFO_CALIBBIAS:
+ case IIO_CHAN_INFO_CALIBSCALE:
mutex_lock(&st->lock);
/* Compare against table - hard matching here */
for (i = 0; i < ARRAY_SIZE(dummy_scales); i++)
@@ -324,6 +325,12 @@ static int iio_dummy_write_raw(struct iio_dev *indio_dev,
st->accel_calibscale = &dummy_scales[i];
mutex_unlock(&st->lock);
return ret;
+ case IIO_CHAN_INFO_CALIBBIAS:
+ mutex_lock(&st->lock);
+ st->accel_calibbias = val;
+ mutex_unlock(&st->lock);
+ return 0;
+
default:
return -EINVAL;
}