Date:   Thu, 30 May 2019 14:35:10 +0200
From:   Hans de Goede <hdegoede@...hat.com>
To:     Luís Ferreira <luis@...orafoss.org>
Cc:     jic23@...nel.org, Hartmut Knaack <knaack.h@....de>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Peter Meerwald-Stadler <pmeerw@...erw.net>,
        Stephan Gerhold <stephan@...hold.net>,
        "open list:IIO SUBSYSTEM AND DRIVERS" <linux-iio@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] iio: accel: add missing sensor for some 2-in-1 based
 ultrabooks

Hi,

On 30-05-19 13:53, Luís Ferreira wrote:
> Hi,
> 
> @poettering just merged the pull request. Is it ready to go now?

You mean the kernel patch, yes merging that now is fine with me.

Regards,

Hans



> 
> Sincerely,
> Luís Ferreira
> E2AB 2BF8 F3EC ABE2 E149 F2FD BC43 0831 9CE4 0B64
> 
> On Wed, 29 May 2019 at 10:57, Hans de Goede <hdegoede@...hat.com> wrote:
>>
>> Hi,
>>
>> On 5/23/19 2:03 PM, Luís Ferreira wrote:
>>> Hi Hams,
>>>
>>> https://github.com/systemd/systemd/pull/12322
>>> https://github.com/hadess/iio-sensor-proxy/pull/262
>>>
>>> As all the pull requests to systemd and iio-sensor-proxy has already
>>> been merged, I just need your review on this:
>>> https://github.com/systemd/systemd/pull/12449
>>>
>>> Then, I guess this patch is ready to go. Please let me know if theres any issue.
>>
>> Thank you for your work on this. I've given a favorable review to the
>>
>> last systemd  pull-req.
>>
>> Regards,
>>
>> Hans
>>
>>
>>> On Wed, 17 Apr 2019 at 16:08, Hans de Goede <hdegoede@...hat.com> wrote:
>>>>
>>>> Hi,
>>>>
>>>> On 15-04-19 17:40, luis@...orafoss.org wrote:
>>>>> April 6, 2019 10:36 AM, "Hans de Goede" <hdegoede@...hat.com> wrote:
>>>>>
>>>>> Hi,
>>>>>
>>>>>> Yes that seems the best way forward with this.
>>>>>>
>>>>>> Note I think "base" is better then "keyboard" for the sensor which
>>>>>> is in the base/keyboard. But neither is perfect, so go which whatever
>>>>>> you prefer.
>>>>>
>>>>> Reference to:
>>>>> - https://github.com/hadess/iio-sensor-proxy/pull/262 > - https://github.com/systemd/systemd/pull/12322
>>>>
>>>> Thank you for your work on this, I see that Bastien has
>>>> already reviewed the iio-sensor-proxy changes.
>>>>
>>>> I've just added one small remark to the systemd changes,
>>>> except for that small remark the systemd changes look good to me.
>>>>
>>>> Regards,
>>>>
>>>> Hams
>>>>
>>>>
>>>>
>>>>
>>>>>> On 06-04-19 01:01, Luís Ferreira wrote:
>>>>>>
>>>>>>> Hi,
>>>>>>> Basically we need to come up with a convention to (optionally) indicate
>>>>>>
>>>>>> the sensors location with a udev attribute set by:
>>>>>> /lib/udev/hwdb.d/60-sensor.hwdb
>>>>>>> So should we start adding `ACCEL_LOCATION=display` and
>>>>>>> `ACCEL_LOCATION=keyboard` attributes to that file and patch
>>>>>>> iio-sensor-proxy to ignore the keyboard ones as a first step ?
>>>>>>
>>>>>> Yes that seems the best way forward with this.
>>>>>>
>>>>>> Note I think "base" is better then "keyboard" for the sensor which
>>>>>> is in the base/keyboard. But neither is perfect, so go which whatever
>>>>>> you prefer.
>>>>>>
>>>>>> Thanks & Regards,
>>>>>>
>>>>>> Hans
>>>>>>
>>>>>>> On Wed, 3 Apr 2019 at 10:10, Hans de Goede <hdegoede@...hat.com> wrote:
>>>>>>
>>>>>> Hi,
>>>>>>
>>>>>> On 02-04-19 18:04, Luís Ferreira wrote:
>>>>>>> Some ultrabooks, like Teclast F6 Pro, use KIOX010A sensor on display
>>>>>>> and KIOX020A sensor on keyboard base, to detect tablet mode or screen
>>>>>>> orientation.
>>>>>>
>>>>>> I deliberately left out the KIOX020A id for now, because currently
>>>>>> userspace cannot really deal with having 2 sensors.
>>>>>>
>>>>>> See:
>>>>>> https://github.com/systemd/systemd/issues/6557
>>>>>> https://github.com/hadess/iio-sensor-proxy/issues/166
>>>>>>
>>>>>> Basically we need to come up with a convention to (optionally) indicate
>>>>>> the sensors location with a udev attribute set by:
>>>>>> /lib/udev/hwdb.d/60-sensor.hwdb
>>>>>>
>>>>>> And then patch iio-sensor-proxy to consume that attribute and ignore
>>>>>> the one which has e.g. ACCEL_LOCATION=keyboard in its udev properties
>>>>>>
>>>>>> Ignoring would be a first step, maybe later it can do something useful
>>>>>> with it, see e.g. : https://github.com/alesguzik/linux_detect_tablet_mode
>>>>>>
>>>>>> IMHO we really should minimally get code in place for iio-sensor-proxy
>>>>>> to ignore the keyboard accelerometer before merging this patch.
>>>>>>
>>>>>> I realize that having the code in place will not magically get it on
>>>>>> all users machines, but I believe this is the minimum which needs to
>>>>>> happen before we push this out and potentially breaks people screen
>>>>>> rotation.
>>>>>>
>>>>>> I've had working on this on my TODO list for a long long time now,
>>>>>> but -ENOTIME. If you have some time to work on this then that would
>>>>>> be great.
>>>>>>
>>>>>> Regards,
>>>>>>
>>>>>> Hans
>>>>>>> Signed-off-by: Luís Ferreira <luis@...orafoss.org>
>>>>>>> ---
>>>>>>> drivers/iio/accel/kxcjk-1013.c | 1 +
>>>>>>> 1 file changed, 1 insertion(+)
>>>>>>>
>>>>>>> diff --git a/drivers/iio/accel/kxcjk-1013.c b/drivers/iio/accel/kxcjk-1013.c
>>>>>>> index 7096e577b23f..9a5e445facc1 100644
>>>>>>> --- a/drivers/iio/accel/kxcjk-1013.c
>>>>>>> +++ b/drivers/iio/accel/kxcjk-1013.c
>>>>>>> @@ -1492,6 +1492,7 @@ static const struct acpi_device_id kx_acpi_match[] = {
>>>>>>> {"KIOX0009", KXTJ21009},
>>>>>>> {"KIOX000A", KXCJ91008},
>>>>>>> {"KIOX010A", KXCJ91008}, /* KXCJ91008 inside the display of a 2-in-1 */
>>>>>>> + {"KIOX020A", KXCJ91008},
>>>>>>> {"KXTJ1009", KXTJ21009},
>>>>>>> {"KXJ2109", KXTJ21009},
>>>>>>> {"SMO8500", KXCJ91008},

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