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

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:

quoted

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 [off-list ref]
One Laptop Per Child