linux-kernel - Re: [PATCH 4/5] iio:adxl372: Add sampling frequency support

lists.openwall.net		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 linux-cve-announce 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]

Message-ID: <CAHp75Ve+S7UDyLva_PY4s=cjKoSY+aMfWDUEHb6tp4AxGtGsDg@mail.gmail.com>
Date:   Thu, 12 Jul 2018 21:25:51 +0300
From:   Andy Shevchenko <andy.shevchenko@...il.com>
To:     Stefan Popa <stefan.popa@...log.com>
Cc:     Jonathan Cameron <jic23@...nel.org>,
        Lars-Peter Clausen <lars@...afoo.de>,
        Michael Hennerich <Michael.Hennerich@...log.com>,
        Hartmut Knaack <knaack.h@....de>,
        Peter Meerwald <pmeerw@...erw.net>,
        linux-iio <linux-iio@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 4/5] iio:adxl372: Add sampling frequency support

On Thu, Jul 12, 2018 at 6:36 PM, Stefan Popa <stefan.popa@...log.com> wrote:
> This patch adds the option for the user to select the sampling frequency.
> Also, the user can read the available frequencies and read the currently
> set frequency via the read_raw function. The frequency can be set via the
> write_raw function.
>
> When the frequency is set, the bandwidth is also checked and ensured
> that it is constrained to at most half of the sampling frequency.

> +static int adxl372_find_closest_match(const int *array,
> +                                     unsigned int size, int val)
> +{
> +       int i;
> +
> +       for (i = 0; i < size; i++) {
> +               if (val <= array[i])
> +                       return i;
> +       }
> +
> +       return size - 1;
> +}

Perhaps it's time to extend bsearch with something called
bsearch_closest().

-- 
With Best Regards,
Andy Shevchenko