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SubjectRe: [PATCH v6 0/4] Add initial configfs support for IIO
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On Fri, May 8, 2015 at 9:41 PM, Jonathan Cameron <jic23@kernel.org> wrote:
> On 08/05/15 09:33, 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.
> I'm happy with the whole series, but given Lars' involvement would like to
> give him a bit of time for another look / reviewed-by / acked-by or similar.
>
> Obviously comments from anyone else welcome as well.
>
> Now all we need to do is all the other uses for configfs that we've
> discussed in earlier threads :) Easy really ;)

Agree. :)

The important thing now is to get Acked-by/Reviewed-by on the interface because
once accepted this cannot be changed.

For the rest of the code we can send patches later.

>>
>> Changes since v5: (after Lars comments)
>> * the most important change is that we moved sampling_frequency attribute
>> from configfs to trigger's directory in /sys.
>> * couple of const added to strings
>> * documentation to public API in sw_trigger.h
>> * replace pr_err with WARN_ONCE in trigger_make_group to avoid spamming
>> kernel log, but without leaving user clueless in case of errors.
>> * we still need to decide if we get a real gain by adding min/max limits
>> for sampling frequency in /config dir. Anyhow, this can be done in a later
>> patch.
>> * fix race in hrtimer_remove
>>
>> Changes since v4:
>> * patch 1/4
>> - fixed "new line" nit in industrialio-sw-trigger.c
>> - added license header in sw_trigger.h o
>> * patch 2/4
>> - none
>> * patch 3/4
>> - none
>> * patch 4/4
>> - removed "Further work" chapter in iio_configfs.txt
>> - added configfs-iio file in Documentation/ABI/testing
>>
>> 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/ABI/testing/configfs-iio | 20 ++++
>> Documentation/iio/iio_configfs.txt | 58 ++++++++++
>> drivers/iio/Kconfig | 16 +++
>> drivers/iio/Makefile | 2 +
>> drivers/iio/industrialio-configfs.c | 117 ++++++++++++++++++++
>> drivers/iio/industrialio-sw-trigger.c | 115 +++++++++++++++++++
>> drivers/iio/trigger/Kconfig | 10 ++
>> drivers/iio/trigger/Makefile | 2 +
>> drivers/iio/trigger/iio-trig-hrtimer.c | 194 +++++++++++++++++++++++++++++++++
>> include/linux/iio/sw_trigger.h | 85 +++++++++++++++
>> 10 files changed, 619 insertions(+)
>> create mode 100644 Documentation/ABI/testing/configfs-iio
>> 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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