How do I find updates to the USB HID usage tables?

How do I find updates to the USB HID usage tables?

[Jim Gettys]

Specifically, I'm trying to find definitions for new digitizer page
report fields not found in the USB serial bus HID usage tables v. 1.12
(the latest on the USB web site).

The fields of interest have values of 0x47, 0x48, and 0x49, that are in
the reserved area of the digitizer's page in the 1.12 document.

			Thanks,
				- Jim Gettys

-- 
Jim Gettys <jg@laptop.org>
One Laptop Per Child

Re: How do I find updates to the USB HID usage tables?

[Greg KH]

On Thu, Dec 11, 2008 at 10:16:46AM -0500, Jim Gettys wrote:
> Specifically, I'm trying to find definitions for new digitizer page
> report fields not found in the USB serial bus HID usage tables v. 1.12
> (the latest on the USB web site).
> 
> The fields of interest have values of 0x47, 0x48, and 0x49, that are in
> the reserved area of the digitizer's page in the 1.12 document.

If they are "reserved" they shouldn't be used.
Are you sure they are being used in a proper way and the device isn't
just using the HID name to make it easier to write a userspace windows
driver?

I can go dig through any pre-released specs that are availble if you
think it is something that is being used properly.

thanks,

greg k-h

Re: How do I find updates to the USB HID usage tables?

[Jim Gettys]

On Thu, 2008-12-11 at 07:35 -0800, Greg KH wrote:
> On Thu, Dec 11, 2008 at 10:16:46AM -0500, Jim Gettys wrote:
> > Specifically, I'm trying to find definitions for new digitizer page
> > report fields not found in the USB serial bus HID usage tables v. 1.12
> > (the latest on the USB web site).
> > 
> > The fields of interest have values of 0x47, 0x48, and 0x49, that are in
> > the reserved area of the digitizer's page in the 1.12 document.
> 
> If they are "reserved" they shouldn't be used.
> Are you sure they are being used in a proper way and the device isn't
> just using the HID name to make it easier to write a userspace windows
> driver?

They are adjacent to the values that are allocated in the 1.12 spec; the
USB web site describes a process for asking for new fields to be defined
in that space.

Whether they are being used properly, is what I'd like to ensure; I have
a comment or two in the report data structure source I have that would
give me insight as to whether they are using them correctly.  If not, I
want to complain at them...

> 
> I can go dig through any pre-released specs that are availble if you
> think it is something that is being used properly.
> 
That would be greatly appreciated.  The values are all in the digitizer
page.

>
> The fields of interest have values of 0x47, 0x48, and 0x49, that are
> in the reserved area of the digitizer's page in the 1.12 document.

Thanks,
                   - Jim



-- 
Jim Gettys <jg@laptop.org>
One Laptop Per Child

Re: How do I find updates to the USB HID usage tables?

[Jiri Kosina]

On Thu, 11 Dec 2008, Jim Gettys wrote:

> Whether they are being used properly, is what I'd like to ensure; I have 
> a comment or two in the report data structure source I have that would 
> give me insight as to whether they are using them correctly.  If not, I 
> want to complain at them...

Well, if they are reserved in 1.12 HUT, I doubt there is any usage that 
can be considered correct.

-- 
Jiri Kosina
SUSE Labs

Re: How do I find updates to the USB HID usage tables?

[Jim Gettys]

The USB web site on

http://www.usb.org/developers/hidpage/question/

refers to a process for how new values are assigned (answer to question
2.b); it talks about some "HID web page" where some such additions may
be put until some annual update of the document: of course, version 1.12
is 2004, so who knows what may be lurking on some mythical USB page, if
anything...  
                  - Jim

On Thu, 2008-12-11 at 22:03 +0100, Jiri Kosina wrote:
> On Thu, 11 Dec 2008, Jim Gettys wrote:
> 
> > Whether they are being used properly, is what I'd like to ensure; I have 
> > a comment or two in the report data structure source I have that would 
> > give me insight as to whether they are using them correctly.  If not, I 
> > want to complain at them...
> 
> Well, if they are reserved in 1.12 HUT, I doubt there is any usage that 
> can be considered correct.
> 
-- 
Jim Gettys <jg@laptop.org>
One Laptop Per Child

Re: How do I find updates to the USB HID usage tables?

[Greg KH]

On Thu, Dec 11, 2008 at 04:48:35PM -0500, Jim Gettys wrote:
> The USB web site on
> 
> http://www.usb.org/developers/hidpage/question/
> 
> refers to a process for how new values are assigned (answer to question
> 2.b); it talks about some "HID web page" where some such additions may
> be put until some annual update of the document: of course, version 1.12
> is 2004, so who knows what may be lurking on some mythical USB page, if
> anything...  

There are no outstanding HID documents currently under review from the
USB IF that I could find by poking around the member side of usb.org.

So sorry, I couldn't find anything.

greg k-h

Re: How do I find updates to the USB HID usage tables?

[Jim Gettys]

It appears Microsoft is proposing the usages (dunno if they have
formally submitted them to the USB standards folks yet).

There are some documents (dated November) you can find by searching the
Microsoft web site for "multi-touch"; just found them today.  There
wasn't anything when I went looking in October.

The most clearly applicable is:
http://www.microsoft.com/whdc/device/input/DigitizerDrvs_touch.mspx

I'll go over them and confirm that they are consistent with the device I
have...
                          - Jim

On Thu, 2008-12-11 at 14:07 -0800, Greg KH wrote:
> On Thu, Dec 11, 2008 at 04:48:35PM -0500, Jim Gettys wrote:
> > The USB web site on
> > 
> > http://www.usb.org/developers/hidpage/question/
> > 
> > refers to a process for how new values are assigned (answer to question
> > 2.b); it talks about some "HID web page" where some such additions may
> > be put until some annual update of the document: of course, version 1.12
> > is 2004, so who knows what may be lurking on some mythical USB page, if
> > anything...  
> 
> There are no outstanding HID documents currently under review from the
> USB IF that I could find by poking around the member side of usb.org.
> 
> So sorry, I couldn't find anything.
> 
> greg k-h
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-- 
Jim Gettys <jg@laptop.org>
One Laptop Per Child