From: Lars-Peter Clausen <lars@metafoo.de>
To: Hector Palacios <hector.palacios@digi.com>
Cc: linux-iio@vger.kernel.org, Marek Vasut <marex@denx.de>,
"fabio.estevam@freescale.com" <fabio.estevam@freescale.com>
Subject: Re: Accessing specific hardware features of mxs-lradc
Date: Tue, 02 Jul 2013 14:58:18 +0200 [thread overview]
Message-ID: <51D2CE6A.7040103@metafoo.de> (raw)
In-Reply-To: <51D2B057.9090005@digi.com>
On 07/02/2013 12:49 PM, Hector Palacios wrote:
> Greetings,
>
> The mxs-lradc has some hardware specific features like the DIVIDE_BY_TWO (an
> analog divide by two circuit that can be activated per channel).
> This is not currently implemented in the driver and I was wondering what would
> be the way to expose and control such setting. A specific sysfs entry? Somehow
> through the device tree?
>
> Is there any example of how to control a hw-specific feature in other similar
> iio drivers?
>
This sounds as if the channel scale is programmable. There are quite a few
drivers for devices which have similar features, just make the scale property
writable and provide a scale_available.
- Lars
next prev parent reply other threads:[~2013-07-02 12:54 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-02 10:49 Accessing specific hardware features of mxs-lradc Hector Palacios
2013-07-02 12:06 ` Marek Vasut
2013-07-02 12:58 ` Lars-Peter Clausen [this message]
2013-07-02 13:28 ` Alexandre Belloni
2013-07-02 14:55 ` Hector Palacios
2013-07-02 15:21 ` Lars-Peter Clausen
2013-07-02 15:41 ` Lars-Peter Clausen
2013-07-02 15:45 ` Alexandre Belloni
2013-07-02 15:55 ` Lars-Peter Clausen
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=51D2CE6A.7040103@metafoo.de \
--to=lars@metafoo.de \
--cc=fabio.estevam@freescale.com \
--cc=hector.palacios@digi.com \
--cc=linux-iio@vger.kernel.org \
--cc=marex@denx.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox