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SubjectRe: [PATCH v2] add support for Freescale's MMA8653FC 10 bit accelerometer
Am 2015-03-19 um 11:22 schrieb Bastien Nocera:
> On Wed, 2015-03-18 at 19:28 +0100, Martin Kepplinger wrote:
>> Am 2015-03-18 um 19:05 schrieb Bastien Nocera:
>>> On Wed, 2015-03-18 at 19:02 +0100, Martin Kepplinger wrote:
>>>> Am 2015-03-18 um 17:59 schrieb Bastien Nocera:
>>>>> On Wed, 2015-03-18 at 17:42 +0100, Martin Kepplinger wrote:
>>>>>>
>>>>> <snip>
>>>>>> It could have gone to drivers/iio/accel if it would use an
>>>>>> iio interface, which would make more sense, you are right,
>>>>>> but I
>>>>>> simply don't have the time to merge it in to iio.
>>>>>>
>>>>>> It doesn't use an input interface either but I don't see a
>>>>>> good place for an accelerometer that uses sysfs only.
>>>>>>
>>>>>> It works well, is a relatively recent chip and a clean
>>>>>> dirver. But this is all I can provide.
>>>>>
>>>>> As a person who works on the user-space interaction of those
>>>>> with desktops [1]: Urgh.
>>>>>
>>>>> I already have 3 (probably 4) types of accelerometers to
>>>>> contend with, I'm not fond of adding yet another type.
>>>>>
>>>>> Is there any way to get this hardware working outside the SoCs
>>>>> it's designed for (say, a device with I2C like a Raspberry
>>>>> Pi), so that a kind soul could handle getting this using the
>>>>> right interfaces?
>>>>>
>>>>
>>>> It works on basically any SoC and is in no way limited in this
>>>> regard. Sure, userspace has to expicitely support it and I hear
>>>> you. Using the iio interface would make more sense. I can only
>>>> say I'd love to have the time to move this driver over. I'm
>>>> very sorry.
>>>
>>> How can we get the hardware for somebody to use on their own
>>> laptops/embedded boards to implement this driver?
>>>
>>
>> It's connected over I2C. If the included documentation is not clear
>> please tell me what exacly. Thanks!
>
>
> I'll ask the question a different way: can you please give the address
> of a shop where that hardware is available?
>

there is
http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=RDMMA865x&lang_cd=
and http://linux-sunxi.org/Inet_K970 for example. I think I saw Android
devices with it too, and I would guess it would be used more often if it
were in linux.

Please refer to v4 of the patch for different questions. thanks!


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