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From: AceLan Kao <acelan.kao@canonical.com>
To: Jiri Kosina <jikos@kernel.org>,
	Jonathan Cameron <jic23@kernel.org>,
	Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>,
	linux-input@vger.kernel.org, linux-iio@vger.kernel.org
Subject: Display got wrong rotation after hid_sensor_accel_3d is loaded
Date: Thu, 26 Dec 2019 17:22:18 +0800	[thread overview]
Message-ID: <CAFv23QmiDdhe+xJw2y7CXiWq4-GK1S-1bcKxEpNhNJu3ZtzA_w@mail.gmail.com> (raw)

Hi all,

I'm working on a new platform which comes with an accelerator meter.
It's a STMicroelectronics LSM6DS3US accelerator meter, it doesn't use
st_sensors driver, but hid_sensor_accel_3d.
After hid_sensor_accel_3d is loaded, the display becomes upside down,
so I tried to add some code to make it become normal.(ACCEL_X should
have the same modification)

I don't know how to fix this in a correct way, please give me some hints.
Thanks.

diff --git a/drivers/iio/accel/hid-sensor-accel-3d.c
b/drivers/iio/accel/hid-sensor-accel-3d.c
index 24573eb647a3..8ca6a222b773 100644
--- a/drivers/iio/accel/hid-sensor-accel-3d.c
+++ b/drivers/iio/accel/hid-sensor-accel-3d.c
@@ -270,6 +270,8 @@ static int accel_3d_capture_sample(struct
hid_sensor_hub_device *hsdev,
               accel_state->accel_val[CHANNEL_SCAN_INDEX_X + offset] =
                                               *(u32 *)raw_data;
+               if (usage_id == HID_USAGE_SENSOR_ACCEL_Y_AXIS)
+                       accel_state->accel_val[CHANNEL_SCAN_INDEX_Y] *= -1;

Best regards,
AceLan Kao.

             reply	other threads:[~2019-12-26  9:22 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-26  9:22 AceLan Kao [this message]
2019-12-26 15:03 ` Display got wrong rotation after hid_sensor_accel_3d is loaded Bastien Nocera
2019-12-27  2:30   ` AceLan Kao
2019-12-30 17:18     ` Srinivas Pandruvada
2020-01-02  2:46       ` AceLan Kao
2020-01-02 17:43         ` Srinivas Pandruvada
2020-01-06  1:53           ` AceLan Kao

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