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SubjectRe: [PATCH v2 1/5] misc: sensorhub: Add sensorhub driver
On 21/11/14 19:38, Arnd Bergmann wrote:
> On Friday 21 November 2014 19:19:13 Karol Wrona wrote:
>> Sensorhub is MCU dedicated to collect data and manage several sensors.
>> Sensorhub is a spi device which provides a layer for IIO devices. It provides
>> some data parsing and common mechanism for sensorhub sensors.
>>
>> Adds common sensorhub library for sensorhub driver and iio drivers
>> which uses sensorhub MCU to communicate with sensors.
>>
>> Signed-off-by: Karol Wrona <k.wrona@samsung.com>
>> Acked-by: Kyungmin Park <kyungmin.park@samsung.com>
>> ---
>> drivers/misc/Kconfig | 1 +
>> drivers/misc/Makefile | 1 +
>> drivers/misc/sensorhub/Kconfig | 13 +
>> drivers/misc/sensorhub/Makefile | 6 +
>> drivers/misc/sensorhub/ssp.h | 279 +++++++++++
>> drivers/misc/sensorhub/ssp_dev.c | 828 ++++++++++++++++++++++++++++++++
>> drivers/misc/sensorhub/ssp_spi.c | 653 +++++++++++++++++++++++++
>> include/linux/iio/common/ssp_sensors.h | 79 +++
>
> You seem to provide infrastructure for other drivers here, so I don't think
> drivers/misc is a good place. Have you considered making this a regular
> mfd driver? If that doesn't fit, is there possibly some place in the iio
> framework for this kind of driver?

Looks like an MFD to me. If all the children lie within
IIO (so far they do I think - though the thermostat firmware implies
perhaps not!) then you could put it in drivers/iio/common
(as you have with the library code) - or perhaps, given these sensor
hubs are becoming pretty common a sub directory under mfd/ is the
best plan. Some of them are sure to offer functionality more general
that IIO sooner or later.




>
> Arnd
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