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
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