Re: [RFC 0/1] User-space I/O driver for HID subsystem (Bluetooth-LE HIDP)

On Friday, March 16, 2012 10:57:38 AM Marcel Holtmann wrote:

Hi Joao,

quoted

quoted

I have hacked together a small driver which allows user-space I/O
drivers to provide HID devices. This is needed for
Bluetooth-Low-Energy HID devices as the Bluetooth-LE protocol is
parsed in user-space.

I have only compile-tested this driver, I haven't run it yet. It's
just an proposal how this could be implemented. It should also work
as hint to the BT-LE developers how such an interface will
look-like.

First of all, thanks for your effort. I haven't looked at the code
yet, but thinking again about the problem and since it's very similar
to uinput, would adding another ioctl to uinput that receives the HID
descriptor and put uinput in a "HID mode" be sufficient? This way we
could increase code reuse and ease maintainance, I guess. What do you
think?

I am really against this. Input subsystem and HID subsystem are two
different things. Don't try to combine them.

You would also mess up the layering here. HID uses input, but input does
not require HID.

Completely agree with Marcel here.

Thanks.

-- 
Dmitry