On 06/04/2014 08:23 AM, Reyad Attiyat wrote:
Hey Srinivas,
On Tue, Jun 3, 2014 at 12:43 PM, Srinivas Pandruvada
<srinivas.pandruvada@xxxxxxxxxxxxxxx> wrote:
May be we should have a field in const struct iio_chan_spec, so that we
can dynamically enable disable channels. In this way we can statically
define channels, but can be enabled/disabled dynamically.
Would this require changing iio subsystem to create sysfs entries only
when enabled? Would we need to add functions to disable and enable
later on?
This is just a thought. You don't have to change it. I am sure Jonathan
will have some opinion this.
I think we need to present angle in radians. Are you basing change present
in linux-next? This will automatically do in this function.
I'll look into this. What function should I use to make the iio chanel
to report radians?
I think it will work if the existing sequence is maintained
st->scale_precision = hid_sensor_format_scale(
HID_USAGE_SENSOR_COMPASS_3D,
&st->magn[CHANNEL_SCAN_INDEX_X],
&st->scale_pre_decml,
&st->scale_post_decml);
So as long as you call this function, the scale value to user space will
be returned correctly.
I don't see kfree. Try devm_kcalloc?
I changed kmemdup to kcalloc so there is still a kfree in the exsiting
code. I can change this to devm_kcalloc but only if we don't go with
static channels that are enabled as found.
Since you are changing this part, devm_ calls are preferred, I think.
Thanks,
Srinivas
Thanks,
Reyad Attiyat
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