Using uinput

Using uinput

[Jonathan Cameron]

Hi All,

In a thread to do with the cma3000 accelerometer on lkml Dmitry (input maintainer)
in passing mentioned that an iio to input bridge might exist in userspace
using uinput.

Looks to me like this might kill two birds with one stone for us.

* Would finally provide a route for all those who want their sensor
  drivers in input because they want to use them for games.
* Would provide a fairly good test of the generality of the user space interfaces.

What do people think of this rather than an in kernel bridge?

Given it would trivially have access to all of the info on what the sensor is producing
it actually looks much easier to do than the kernel bridge (which was going to need
a userspace configuration element or a lot of changes to our internal structure).

Jonathan

Re: Using uinput

[Jonathan Cameron]

On 08/30/10 18:49, Jonathan Cameron wrote:
> Hi All,
> 
> In a thread to do with the cma3000 accelerometer on lkml Dmitry (input maintainer)
> in passing mentioned that an iio to input bridge might exist in userspace
> using uinput.
> 
> Looks to me like this might kill two birds with one stone for us.
> 
> * Would finally provide a route for all those who want their sensor
>   drivers in input because they want to use them for games.
> * Would provide a fairly good test of the generality of the user space interfaces.
> 
> What do people think of this rather than an in kernel bridge?
> 
> Given it would trivially have access to all of the info on what the sensor is producing
> it actually looks much easier to do than the kernel bridge (which was going to need
> a userspace configuration element or a lot of changes to our internal structure).
> 
If anyone is curious, I just cc'd the list in on the mega lkml thread because
my post includes a quick and dirty hacked together bridge.  It works.

Annoying my test platform is currently rather unstable (stargate2).
Git bisect fun tomorrow.

Jonathan