This will be a problem for current implementations, which are about to get shipped.
Once I get chance, I will start looking at this idea. Meanwhile, you need to add hook to vendor and product id in the table.

Thanks,
Srinivas


-----Original Message-----
From: Alexander Holler [mailto:holler-SXC+2es9fhnfWeYVQQPykw@public.gmane.org] 
Sent: Monday, December 10, 2012 1:08 PM
To: linux-iio-u79uwXL29TY76Z2rM5mHXA@public.gmane.org; linux-input-u79uwXL29TY76Z2rM5mHXA@public.gmane.org; Pandruvada, Srinivas; matteo.dameno-qxv4g6HH51o@public.gmane.org
Subject: hid-sensor-hub and autoloading of HID sensor modules

Hello,

as I've just posted a patch to get rid of the vendor and device IDs for USB HID sensor hubs, there is still one problem left: hid-sensor-hub doesn't automatically load the necessary drivers (if they are modules).

Here is a suggestion about how to solve that:

Create HID groups HID_GROUP_SENSOR_ACCEL, HID_GROUP_SENSOR_TIME, ...) for every type of (supported) sensor (instead of the one HID_GROUP_SENSOR_HUB), scan for their usage pages (e.g.
HID_USAGE_SENSOR_ACCEL, HID_USAGE_SENSOR_TIME, ...) set the group and so load the final module and not hid-sensor-hub. hid-sensor-hub will then get loaded automatically.

As I don't have any real sensor hubs (and no business with them), I think others should implement such, if that idea got approved to make sense. ;) That just would be some few lines, but I couldn't test them with real-world stuff.

Regards,

Alexander