On 10/31/2012 06:55 PM, Pantelis Antoniou wrote:
> [...]
>>> }
>>>
>>> indio_dev->channels = chan_array;
>>> + indio_dev->num_channels = channels;
>>> +
>>> + size = (channels + 1) * sizeof(struct iio_map);
>>> + adc_dev->map = kzalloc(size, GFP_KERNEL);
>>> + if (adc_dev->map == NULL) {
>>> + kfree(chan_array);
>>> + return -ENOMEM;
>>> + }
>>> +
>>> + for (i = 0; i < indio_dev->num_channels; i++) {
>>> + adc_dev->map[i].adc_channel_label = chan_array[i].datasheet_name;
>>> + adc_dev->map[i].consumer_dev_name = "any";
>>> + adc_dev->map[i].consumer_channel = chan_array[i].datasheet_name;
>>> + }
>>> + adc_dev->map[i].adc_channel_label = NULL;
>>> + adc_dev->map[i].consumer_dev_name = NULL;
>>> + adc_dev->map[i].consumer_channel = NULL;
>>
>> The map should be passed in via platform data or similar. All the fields of
>> the map depend on the specific user, so you can't use a generic map. In fact
>> if we were able to use a generic map, we wouldn't need a map at all.
>
> There's no platform data in the board I'm using. It's board-generic using
> device tree only.
That's the 'or similar' ;) Unfortunately we do not have a device tree
binding for IIO yet. But I think we should aim at a interface similar like
we have in other subsystems like the clk, regulator or dma framework.
- Lars
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