On 07/31/2013 12:46 AM, Otavio Salvador wrote:
On Fri, Jul 26, 2013 at 6:10 PM, Mario Domenech Goulart
<mario@xxxxxxxxxxxxxxxx> wrote:
Hi,
We are working on a driver for TI ADS124x ADC series (ADS1246,
ADS1247 and ADS1248. Datasheet: http://www.ti.com/litv/pdf/sbas426g)
The attached patch is what we have so far. It is by no means
finished. We are actually submitting it in the hope you can
review it and provide feedback.
Some observations and questions in advance:
* we've set the chip to only convert on-demand. I.e., it is not
constantly converting. Conversions are only performed when
requested via sysfs. We are not sure about the best approach
with regard to that behavior. Should it be constantly
converting?
* we've set the device as IIO_TEMP, although what is currently
exposed in sysfs is voltage. The chip is targeted to
temperature sensors, but the actual output of the ADC is
voltage, so we don't know exactly what to use as type.
* we are aware of some ugly hacks like wait_for_drdy. :-) What's
the best approach to wait for the data ready signal?
* in fact we've been mostly working with ADS1247 and haven't
concentrated on supporting ADS1246 and ADS1248 for now, but we
intend to do so.
Could someone give us some feedback on this?
We are really looking for some initial review on this patch so we can
clean it up and do the need changes to send it for official review
later.
Can you send the patch inline instead of as an attachment?
- Lars
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