Re: [PATCH v4 0/4] Add initial configfs support for IIO

From: Jonathan Cameron
Date: Sun May 03 2015 - 15:20:18 EST


On 26/04/15 20:35, Jonathan Cameron wrote:
> On 20/04/15 15:02, Daniel Baluta wrote:
>> This patchset introduces IIO software triggers, offers a way of configuring
>> them via configfs and adds the IIO hrtimer based interrupt source to be used
>> with software triggers.
>>
>> The arhitecture is now split in 3 parts, to remove all IIO trigger specific
>> parts from IIO configfs core:
>>
>> (1) IIO software triggers - are independent of configfs.
>> (2) IIO configfs - offers a generic way of creating IIO objects. So far we can
>> create software triggers.
>> (3) IIO hrtimer trigger - is the first interrupt source for software triggers
>> (with syfs to follow). Each trigger type can implement its own set of
>> attributes.
>>
>> Changes since v3:
>> * addressed comments from Jonathan for previous version
>> * https://lkml.org/lkml/2015/4/6/111
>
> Hi Daniel.
>
> Thanks for all your hard work on this. I'm very pleased with the result.
> It's clean, remarkably compact and nice and extensible.
>
> The only reason I didn't apply it today (other than the odd nit) was because
> it's major new ABI for us so I'd ideally like a few of IIOs main reviewers
> to take a look before we take it.
>
> Lars, Harmut, Peter, others (our reviewer set is growing very fast!) if you
> guys have time and interest, please take a quick look at this and see if we've
> missed anything.

Anyone intending to look at this? I'm inclined to take it as is, but know that
Lars for instance had a particular interest in this support (it was his suggestion
in the first place I think!) so if you want more time to have a look, then
let me know.

I'm travelling for the next couple of days, so should have plenty of time in airports
to get some reviewing done.
>
> It's actually remarkably straightforward in the end due to all of Daniel's hard
> work so shouldn't take you long unless you want to dig right down into the configfs
> side of things. If you do, then the best reference I found (Daniel may have others)
> is the usb-gadget driver.
>
> Jonathan
>>
>> Daniel Baluta (4):
>> iio: core: Introduce IIO software triggers
>> iio: core: Introduce IIO configfs support
>> iio: trigger: Introduce IIO hrtimer based trigger
>> iio: Documentation: Add IIO configfs documentation
>>
>> Documentation/iio/iio_configfs.txt | 67 +++++++++++
>> drivers/iio/Kconfig | 16 +++
>> drivers/iio/Makefile | 2 +
>> drivers/iio/industrialio-configfs.c | 117 +++++++++++++++++++
>> drivers/iio/industrialio-sw-trigger.c | 111 ++++++++++++++++++
>> drivers/iio/trigger/Kconfig | 9 ++
>> drivers/iio/trigger/Makefile | 2 +
>> drivers/iio/trigger/iio-trig-hrtimer.c | 201 +++++++++++++++++++++++++++++++++
>> include/linux/iio/sw_trigger.h | 50 ++++++++
>> 9 files changed, 575 insertions(+)
>> create mode 100644 Documentation/iio/iio_configfs.txt
>> create mode 100644 drivers/iio/industrialio-configfs.c
>> create mode 100644 drivers/iio/industrialio-sw-trigger.c
>> create mode 100644 drivers/iio/trigger/iio-trig-hrtimer.c
>> create mode 100644 include/linux/iio/sw_trigger.h
>>
>
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