The hid-sensor-prox returned an empty string on sysfs in_proximity_scale read. This is due to the the drivers reporting it's scale from an internal value which is never changed from zero. Try to query the scale of the HID sensor using hid_sensor_format_scale. Signed-off-by: Philipp Jungkamp <p.jungkamp@xxxxxxx> --- Hello, While trying to utilize hid_sensor_prox driver I noticed this problem. Should this be part of the branch created for the other patch series I have submitted? See: https://lore.kernel.org/linux-iio/nycvar.YFH.7.76.2212201525010.9000@xxxxxxxxxxxxx/T/#u Regards, Philipp Jungkamp drivers/iio/light/hid-sensor-prox.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/iio/light/hid-sensor-prox.c b/drivers/iio/light/hid-sensor-prox.c index f10fa2abfe72..3322f8e56f41 100644 --- a/drivers/iio/light/hid-sensor-prox.c +++ b/drivers/iio/light/hid-sensor-prox.c @@ -222,6 +222,9 @@ static int prox_parse_report(struct platform_device *pdev, dev_dbg(&pdev->dev, "prox %x:%x\n", st->prox_attr.index, st->prox_attr.report_id); + st->scale_precision = hid_sensor_format_scale(usage_id, &st->prox_attr, + &st->scale_pre_decml, &st->scale_post_decml); + return ret; } -- 2.39.0
