diff options
| author | Gwendal Grignou <gwendal@chromium.org> | 2019-04-26 14:39:16 +0300 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2019-04-27 16:11:59 +0300 |
| commit | 8b7a6a35746292e140304107e60f9a980416abf7 (patch) | |
| tree | 4e6e7f30269c3248c3620b3e91da0169ac68015b /drivers/iio/common/cros_ec_sensors | |
| parent | d2fc0156963cae8f1eec8e2dd645fbbf1e1c1c8e (diff) | |
| download | linux-8b7a6a35746292e140304107e60f9a980416abf7.tar.xz | |
iio: cros_ec: add 'id' sysfs entry
This new sysfs entry is used to interpret ring buffer information,
mainly by Android sensor HAL.
It expand to all sensors, the documentation about 'id' we can found
in Documentation/ABI/testing/sysfs-bus-iio-cros-ec.
Also fix typo in docs, I replace 'Septembre' by 'September'.
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Signed-off-by: Fabien Lahoudere <fabien.lahoudere@collabora.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio/common/cros_ec_sensors')
| -rw-r--r-- | drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c index 719a0df5aeeb..130362ca421b 100644 --- a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c +++ b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c @@ -125,6 +125,15 @@ static ssize_t cros_ec_sensors_calibrate(struct iio_dev *indio_dev, return ret ? ret : len; } +static ssize_t cros_ec_sensors_id(struct iio_dev *indio_dev, + uintptr_t private, + const struct iio_chan_spec *chan, char *buf) +{ + struct cros_ec_sensors_core_state *st = iio_priv(indio_dev); + + return snprintf(buf, PAGE_SIZE, "%d\n", st->param.info.sensor_num); +} + static ssize_t cros_ec_sensors_loc(struct iio_dev *indio_dev, uintptr_t private, const struct iio_chan_spec *chan, char *buf) @@ -141,6 +150,11 @@ const struct iio_chan_spec_ext_info cros_ec_sensors_ext_info[] = { .write = cros_ec_sensors_calibrate }, { + .name = "id", + .shared = IIO_SHARED_BY_ALL, + .read = cros_ec_sensors_id + }, + { .name = "location", .shared = IIO_SHARED_BY_ALL, .read = cros_ec_sensors_loc |