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Message-ID: <d120d5000703060525x26da3274r5cc4ac724e1f0beb@mail.gmail.com>
Date: Tue, 6 Mar 2007 08:25:59 -0500
From: "Dmitry Torokhov" <dmitry.torokhov@gmail.com>
To: "Marcel Holtmann" <marcel@holtmann.org>
Subject: Re: [DOC] The documentation for HID Simple Driver Interface 0.5.0
Cc: "Li Yu" <raise.sail@gmail.com>, "Greg Kroah Hartman" <greg@kroah.com>,
       linux-usb-devel <linux-usb-devel@lists.sourceforge.net>,
       LKML <linux-kernel@vger.kernel.org>,
       "Vincent Legoll" <vincentlegoll@gmail.com>,
       "Zephaniah E. Hull" <warp@aehallh.com>,
       "Andrew Morton" <akpm@linux-foundation.org>,
       "Harold Sargeant" <harold-sargeant@ntlworld.com>,
       liyu <liyu@ccoss.com.cn>
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Hi Marcel,

On 3/5/07, Marcel Holtmann <marcel@holtmann.org> wrote:
> Hi Dmitry,
>
> > > This also means that the current keyboard and mouse
> > > input devices will become a HID driver.
> >
> > Are you talking about usbmouse and usbkbd?
>
> no, because if I recall correctly these are the boot mode drivers and
> actually not used at all in any modern distribution.
>
> For me the task of converting HID reports into input events shouldn't be
> actually the job of the HID core layer. My understanding is that the HID
> core should support multiple transport layers. This is currently
> achieved through the hid_device abstraction and used by the USB and by
> the Bluetooth subsystem. This is the lower interface to HID. On the
> upper interface I like to see a driver like interface. So we can
> register specific drivers that can handle specific use cases or vendor
> specific reports. For standard keyboard and mouse reports we however
> should have a standard driver that can handle most of them.
>
> For identification we actually do have the bus type, vendor id and
> product id available. We also can register drivers for specific report
> ids or usages.
>
> I do like the HID simple driver idea, but it is not a simple driver, it
> should be a generic driver interface.
>

Ah, OK. Then we are in complete agreement ;)

-- 
Dmitry