only continuous mode is supported for now; the driver could/should
be switched to single conversion mode
operating mode should be determined by the way IIO accesses the device
and not exposed explicitly
Signed-off-by: Peter Meerwald <pmeerw@xxxxxxxxxx>
---
drivers/staging/iio/magnetometer/hmc5843.c | 68 ------------------------------
1 file changed, 68 deletions(-)
diff --git a/drivers/staging/iio/magnetometer/hmc5843.c b/drivers/staging/iio/magnetometer/hmc5843.c
index b6380fa..91b5ddf 100644
--- a/drivers/staging/iio/magnetometer/hmc5843.c
+++ b/drivers/staging/iio/magnetometer/hmc5843.c
@@ -186,73 +186,6 @@ static int hmc5843_read_measurement(struct hmc5843_data *data,
}
/*
- * From the datasheet:
- * 0 - Continuous-Conversion Mode: In continuous-conversion mode, the
- * device continuously performs conversions and places the result in
- * the data register.
- *
- * 1 - Single-Conversion Mode : Device performs a single measurement,
- * sets RDY high and returns to sleep mode.
- *
- * 2 - Idle Mode : Device is placed in idle mode.
- *
- * 3 - Sleep Mode : Device is placed in sleep mode.
- *
- */
-static ssize_t hmc5843_show_operating_mode(struct device *dev,
- struct device_attribute *attr,
- char *buf)
-{
- struct iio_dev *indio_dev = dev_to_iio_dev(dev);
- struct hmc5843_data *data = iio_priv(indio_dev);
- return sprintf(buf, "%d\n", data->operating_mode);
-}
-
-static ssize_t hmc5843_set_operating_mode(struct device *dev,
- struct device_attribute *attr,
- const char *buf,
- size_t count)
-{
- struct iio_dev *indio_dev = dev_to_iio_dev(dev);
- struct i2c_client *client = to_i2c_client(indio_dev->dev.parent);
- struct hmc5843_data *data = iio_priv(indio_dev);
- struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
- unsigned long operating_mode = 0;
- s32 status;
- int error;
-
- mutex_lock(&data->lock);
- error = kstrtoul(buf, 10, &operating_mode);
- if (error) {
- count = error;
- goto exit;
- }
- dev_dbg(dev, "set conversion mode to %lu\n", operating_mode);
- if (operating_mode > HMC5843_MODE_SLEEP) {
- count = -EINVAL;
- goto exit;
- }
-
- status = i2c_smbus_write_byte_data(client, this_attr->address,
- operating_mode);
- if (status) {
- count = -EINVAL;
- goto exit;
- }
- data->operating_mode = operating_mode;
-
-exit:
- mutex_unlock(&data->lock);
- return count;
-}
-
-static IIO_DEVICE_ATTR(operating_mode,
- S_IWUSR | S_IRUGO,
- hmc5843_show_operating_mode,
- hmc5843_set_operating_mode,
- HMC5843_MODE_REG);
-
-/*
* API for setting the measurement configuration to
* Normal, Positive bias and Negative bias
*
@@ -546,7 +479,6 @@ static const struct iio_chan_spec hmc5883_channels[] = {
static struct attribute *hmc5843_attributes[] = {
&iio_dev_attr_meas_conf.dev_attr.attr,
- &iio_dev_attr_operating_mode.dev_attr.attr,
&iio_dev_attr_scale_available.dev_attr.attr,
&iio_dev_attr_sampling_frequency_available.dev_attr.attr,
NULL
--
1.8.4
--
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