Re: DAC switch between current and voltage mode

[Lars-Peter Clausen <lars@metafoo.de>]

On 08/24/2015 08:44 AM, Sean Nyekjær wrote:
> Hi Lars-Peter
> 
> Sorry the write again. Is the possible with the current iio interface to
> switch a dac from voltage to current mode from userspace?
> If not, will upstream be interrested in a patch if it's possible?

Hi,

Currently this does not work. A patch to add support for this is certainly
welcome. I'm just not sure what the interface for this should look like.
Maybe register both a current and a voltage channel and only allow one of
them to be powered at a time.

- Lars


> 
> Regards
> Sean Nyekjær
> 
> On 2015-08-20 11:57, Sean Nyekjær wrote:
>> Hi all
>>
>> I'm in the process of creating a custom BSP with an ad5755 dac. It an
>> requirement to be able to switch between voltage and current mode per
>> channel from userspace.
>> Is it possible with the current iio interface?
>> Is there a feature in the pipeline where it's possible to do this switch?
>>
>> Regards
>> Sean Nyekjær--
>> To unsubscribe from this list: send the line "unsubscribe linux-iio" in
>> the body of a message to majordomo@vger.kernel.org
>> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>