On 09/01/2010 12:48 PM, Ping Cheng wrote:

[...]

quoted

In the hope that it would work to register only the active endnode,
plus getting a natural definition of every endnode of the usb device.

We always get two logical ports for the pen and touch devices, which
are created by udev (or something in the kernel that I am not so
sure). The Wacom driver can not do much about it. I guess the firmware
of your touch-only Bamboo added the pen interface to the protocol.
That's why you see two ports (I can not access the device to test my
idea before next month).

It should be fine, the extra device will only have mouse capabilities and will
not be used for anything.

quoted

Since Ping had issues
with this too, I will change it to the read-and-modify-later approach used in
the rest of the driver.

Thank you for your consideration. Please use the existing approach so
we can maintain an unified interface. There should not be too much
confusion with the existing approach since pen and touch will not be
on the same logical port anyway.

Will send out a new version shortly.

quoted

quoted

Also, what does BOOT mean?  In Bamboo Pen&Touch device, this would be
the pen input.  So at minimum BAMBOO_PEN is more accurate name.

For the Bamboo Touch, pen is not accurate. Boot comes from the HID specification
(boot interface, mouse protocol), but no name seems appropriate since the node
should not even be there.

Right now, we just tell users to ignore pen or touch if their device
does not support pen or touch (running an X server older than 1.4). In
the X Wacom driver for servers newer than 1.4, we check the valid
tools supported by the device before adding them. End users should not
need to worry about those details, at least in theory.

Maybe we can add this "tool type check method" into the evdev and/or
synaptics X driver as well?

Given the current and coming fixes to udev, I think we will be able to sort it
out well on that level, although it would not hurt if the X drivers were a bit
more selective during preinit.

Cheers,
Henrik