lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:   Fri, 17 Feb 2017 18:23:41 +0200
From:   Daniel Baluta <>
To:     Fabrice Gasnier <>
Cc:     Jonathan Cameron <>,,
        Rob Herring <>,,
        Devicetree List <>,
        Linux Kernel Mailing List <>,
        "" <>,
        Mark Rutland <>,,, Lars-Peter Clausen <>,
        Hartmut Knaack <>,
        Peter Meerwald <>,,,
        Linus Walleij <>
Subject: Re: [RFC 0/4] iio: trigger: Add OF support and GPIO based trigger

On Fri, Feb 17, 2017 at 6:03 PM, Fabrice Gasnier <> wrote:
> Hi,
> I send this as an RFC, as I'm digging to try to get as generic
> as possible GPIO based trigger support, as discussed earlier in
> other patchset "Add EXTI GPIO trigger support to STM32 ADC":
> Following various comments on this, I sent this RFC to address two
> topics, that I see as possible prerequisite:
> - Add trigger OF support
> - GPIO based trigger

I wonder if we could use configfs to create and configure
a GPIO based trigger.

You should just create another trigger type (look into
the userspace API will look like this:

# cd /config/iio/triggers
# insert your iio-trig-gpio
# setup the global parameters for the GPIO (the local params can be
set via dts/acpi)
# cd /config/iio/trigers/gpios/

#mkdir t1

And this will create an io-gpio-trigger named t1.

Not sure this fits your usecase but would be nice to consider.


Powered by blists - more mailing lists