From: Robert Schwebel <r.schwebel@pengutronix.de>
To: Marek Vasut <marex@denx.de>
Cc: Lars-Peter Clausen <lars@metafoo.de>,
linux-iio@vger.kernel.org, Jonathan Cameron <jic23@kernel.org>,
linux-arm-kernel@lists.infradead.org, Wolfgang Denk <wd@denx.de>
Subject: Re: [PATCH] IIO: Add basic MXS LRADC driver
Date: Fri, 20 Jul 2012 10:39:20 +0200 [thread overview]
Message-ID: <20120720083920.GY12601@pengutronix.de> (raw)
In-Reply-To: <201207200418.41554.marex@denx.de>
On Fri, Jul 20, 2012 at 04:18:41AM +0200, Marek Vasut wrote:
> One more thing I'm curious about. There's another ADC block on the
> CPU, called HSADC (high-speed ADC). It can sample even up to
> 2Msamples/s. If I were to, say -- sample at 100kHz and be able to DMA
> the results into memory -- is there any way to push such results into
> userland somehow? Or how to operate such fast beast?
As this unit is mainly intended for things like laser / barcode
scanners, wouldn't v2l2 be a good abstraction for it (with one line and
N pixels)? Just an idea, didn't look too closely.
rsc
--
Pengutronix e.K. | |
Industrial Linux Solutions | http://www.pengutronix.de/ |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
WARNING: multiple messages have this Message-ID (diff)
From: r.schwebel@pengutronix.de (Robert Schwebel)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] IIO: Add basic MXS LRADC driver
Date: Fri, 20 Jul 2012 10:39:20 +0200 [thread overview]
Message-ID: <20120720083920.GY12601@pengutronix.de> (raw)
In-Reply-To: <201207200418.41554.marex@denx.de>
On Fri, Jul 20, 2012 at 04:18:41AM +0200, Marek Vasut wrote:
> One more thing I'm curious about. There's another ADC block on the
> CPU, called HSADC (high-speed ADC). It can sample even up to
> 2Msamples/s. If I were to, say -- sample at 100kHz and be able to DMA
> the results into memory -- is there any way to push such results into
> userland somehow? Or how to operate such fast beast?
As this unit is mainly intended for things like laser / barcode
scanners, wouldn't v2l2 be a good abstraction for it (with one line and
N pixels)? Just an idea, didn't look too closely.
rsc
--
Pengutronix e.K. | |
Industrial Linux Solutions | http://www.pengutronix.de/ |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
next prev parent reply other threads:[~2012-07-20 8:39 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-04 2:15 [PATCH] IIO: Add basic MXS LRADC driver Marek Vasut
2012-07-04 2:15 ` Marek Vasut
2012-07-04 4:30 ` Wolfgang Denk
2012-07-04 4:30 ` Wolfgang Denk
2012-07-04 8:35 ` Lars-Peter Clausen
2012-07-04 8:35 ` Lars-Peter Clausen
2012-07-04 23:48 ` Marek Vasut
2012-07-04 23:48 ` Marek Vasut
2012-07-05 8:33 ` Lars-Peter Clausen
2012-07-05 8:33 ` Lars-Peter Clausen
2012-07-05 19:53 ` Marek Vasut
2012-07-05 19:53 ` Marek Vasut
2012-07-19 14:23 ` Marek Vasut
2012-07-19 14:23 ` Marek Vasut
2012-07-19 14:33 ` Lars-Peter Clausen
2012-07-19 14:33 ` Lars-Peter Clausen
2012-07-19 15:15 ` Marek Vasut
2012-07-19 15:15 ` Marek Vasut
2012-07-19 19:26 ` Marek Vasut
2012-07-19 19:26 ` Marek Vasut
2012-07-20 2:18 ` Marek Vasut
2012-07-20 2:18 ` Marek Vasut
2012-07-20 8:39 ` Robert Schwebel [this message]
2012-07-20 8:39 ` Robert Schwebel
2012-07-20 11:32 ` Marek Vasut
2012-07-20 11:32 ` Marek Vasut
2012-07-20 14:09 ` Lars-Peter Clausen
2012-07-20 14:09 ` Lars-Peter Clausen
2012-07-22 19:48 ` Jonathan Cameron
2012-07-20 14:11 ` Lars-Peter Clausen
2012-07-20 14:11 ` Lars-Peter Clausen
2012-07-20 15:12 ` Marek Vasut
2012-07-20 15:12 ` Marek Vasut
2012-07-09 9:19 ` Juergen Beisert
2012-07-09 9:19 ` Juergen Beisert
2012-07-09 9:52 ` Lars-Peter Clausen
2012-07-09 9:52 ` Lars-Peter Clausen
2012-07-09 10:03 ` Marek Vasut
2012-07-09 10:03 ` Marek Vasut
2012-07-10 9:20 ` Juergen Beisert
2012-07-10 9:20 ` Juergen Beisert
2012-07-10 9:26 ` Marek Vasut
2012-07-10 9:26 ` Marek Vasut
2012-07-10 9:49 ` Juergen Beisert
2012-07-10 9:49 ` Juergen Beisert
2012-07-10 10:08 ` Marek Vasut
2012-07-10 10:08 ` Marek Vasut
2012-07-10 10:26 ` Juergen Beisert
2012-07-10 10:26 ` Juergen Beisert
2012-07-10 10:35 ` Lars-Peter Clausen
2012-07-10 10:35 ` Lars-Peter Clausen
2012-07-10 10:41 ` Juergen Beisert
2012-07-10 10:41 ` Juergen Beisert
2012-07-10 10:45 ` Marek Vasut
2012-07-10 10:45 ` Marek Vasut
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=20120720083920.GY12601@pengutronix.de \
--to=r.schwebel@pengutronix.de \
--cc=jic23@kernel.org \
--cc=lars@metafoo.de \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-iio@vger.kernel.org \
--cc=marex@denx.de \
--cc=wd@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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.