From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from saturn.retrosnub.co.uk ([178.18.118.26]:54060 "EHLO saturn.retrosnub.co.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753197AbaECTep (ORCPT ); Sat, 3 May 2014 15:34:45 -0400 Message-ID: <53654533.80109@kernel.org> Date: Sat, 03 May 2014 20:36:19 +0100 From: Jonathan Cameron MIME-Version: 1.0 To: Srinivas Pandruvada CC: linux-iio@vger.kernel.org Subject: Re: [PATCH 05/16] iio: hid-sensors: ALS: adjust scale and offset References: <1397863356-2470-1-git-send-email-srinivas.pandruvada@linux.intel.com> <1397863356-2470-5-git-send-email-srinivas.pandruvada@linux.intel.com> In-Reply-To: <1397863356-2470-5-git-send-email-srinivas.pandruvada@linux.intel.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Sender: linux-iio-owner@vger.kernel.org List-Id: linux-iio@vger.kernel.org On 19/04/14 00:22, Srinivas Pandruvada wrote: > Using units and unit exponent to calculate scale which is compliant > to IIO ABI. > > Signed-off-by: Srinivas Pandruvada Applied to the togreg branch of iio.git Thanks, > --- > drivers/iio/light/hid-sensor-als.c | 17 +++++++++++++---- > 1 file changed, 13 insertions(+), 4 deletions(-) > > diff --git a/drivers/iio/light/hid-sensor-als.c b/drivers/iio/light/hid-sensor-als.c > index 621541f..39b50be 100644 > --- a/drivers/iio/light/hid-sensor-als.c > +++ b/drivers/iio/light/hid-sensor-als.c > @@ -37,6 +37,10 @@ struct als_state { > struct hid_sensor_common common_attributes; > struct hid_sensor_hub_attribute_info als_illum; > u32 illum; > + int scale_pre_decml; > + int scale_post_decml; > + int scale_precision; > + int value_offset; > }; > > /* Channel definitions */ > @@ -102,12 +106,12 @@ static int als_read_raw(struct iio_dev *indio_dev, > ret_type = IIO_VAL_INT; > break; > case IIO_CHAN_INFO_SCALE: > - *val = als_state->als_illum.units; > - ret_type = IIO_VAL_INT; > + *val = als_state->scale_pre_decml; > + *val2 = als_state->scale_post_decml; > + ret_type = als_state->scale_precision; > break; > case IIO_CHAN_INFO_OFFSET: > - *val = hid_sensor_convert_exponent( > - als_state->als_illum.unit_expo); > + *val = als_state->value_offset; > ret_type = IIO_VAL_INT; > break; > case IIO_CHAN_INFO_SAMP_FREQ: > @@ -229,6 +233,11 @@ static int als_parse_report(struct platform_device *pdev, > dev_dbg(&pdev->dev, "als %x:%x\n", st->als_illum.index, > st->als_illum.report_id); > > + st->scale_precision = hid_sensor_format_scale( > + HID_USAGE_SENSOR_ALS, > + &st->als_illum, > + &st->scale_pre_decml, &st->scale_post_decml); > + > /* Set Sensitivity field ids, when there is no individual modifier */ > if (st->common_attributes.sensitivity.index < 0) { > sensor_hub_input_get_attribute_info(hsdev, >