<div dir="ltr">thanks for the hint.A quick grep of hid-custom* or custom* inside Documentation/hid as well as drivers/iio/ doesn't yields anything related to hid custom sensor driver.Manual search inside the folders recursively also give the same result.I did this for kernel 3.18.x and 3.19.x.I inspired to find the implementation of hid-custom sensor by looking at a code in google : <a href="https://github.com/pfps/yoga-laptop">https://github.com/pfps/yoga-laptop</a> .My intention is to use the hid-custom driver to retrieve the custom values inside the custom sensor fields .I built the above module for custom sensor but got some failure in inserting the custom sensor module - "<span style="font-size:13px"> dmesg log "failed to setup attributes""</span> : so looking for an update driver for hid-custom-sensor.I may be re-looking the same driver again if it doesnt have an updated version.<div>Rgds,</div><div>S</div><div class="gmail_extra"><br clear="all"><div><div class="gmail_signature"><br></div></div>
<br><div class="gmail_quote">On Wed, Feb 11, 2015 at 3:50 AM, Greg KH <span dir="ltr"><<a href="mailto:greg@kroah.com" target="_blank">greg@kroah.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="HOEnZb"><div class="h5">On Tue, Feb 10, 2015 at 11:12:57PM +0530, s.rawat wrote:<br>
> I am reading the HID sensor hub code on lxr and found that there is no driver<br>
> code for hid custom sensor.Is this driver non existent.Hid custom sensor is a<br>
> custom sensor implemented in the device firmware.<br>
> I have a sensor device to which i can talk in windows using hid dlls ,I can<br>
> even read custom fields of a custom sensor of a device through windows apis.<br>
> I want to do the same in linux.I can read the accelerometer, gyroscope and<br>
> magnetometer data through a c application in Linux.But I am unable to do so for<br>
> a custom sensors due to un-availability of the HID custom sensor driver.Does it<br>
> exist or exist by some other name?.<br>
<br>
</div></div>Have you looked in drivers/iio/common/hid-sensors? There are also other<br>
specific hid sensor drivers in drivers/iio/ for those specific chipsets<br>
that are just a bit different from the specification.<br>
<br>
Hope this helps,<br>
<br>
greg k-h<br>
</blockquote></div><br></div></div>