On 07/18/2011 03:41 PM, Jonathan Cameron wrote:
+
+static int ad7280_read_raw(struct iio_dev *dev_info,
+ struct iio_chan_spec const *chan,
+ int *val,
+ int *val2,
+ long m)
+{
+ struct ad7280_state *st = iio_priv(dev_info);
+ unsigned int scale_uv;
+ int ret;
+
+ switch (m) {
+ case 0:
+ mutex_lock(&dev_info->mlock);
+ switch (chan->type) {
+ case IIO_IN:
+ ret = ad7280_read_channel(st, chan->address>> 8,
+ chan->address& 0xFF);
+ break;
+ case IIO_IN_DIFF:
+ ret = ad7280_read_all_channels(st, st->scan_cnt, NULL);
Err... Really need some explanation for what this channel is!
Voltage across all cells.
Fair enough. So are the other voltages not differential as well? (across a given
cell rather than referred to a base voltage)
...
Yes technically seen they are all differential.
Any cost in setting them up as such then?
in1-in0
in2-in1 etc
+
inX-in0 for your summed one?
Yes this is already on my to-do list...
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Greetings,
Michael
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