Bryan W. Headley writes: > Egbert Eich wrote: > > Claus Matthiesen writes: > > > > I may have been imprecise. You can register a pen that hasn't been > > seen before by bringing it close to the tablet so that the tablet > > detects it. You cannot remove a pen once it is moved out of the > > proximity of the tablet. Only if the tablet itself is unhooked (or > > otherwise unregistered) you must forget all its devices. > > > > Well, you *could* unload a device driver by moving the pen away from the > tablet. I wonder about the usefulness of this, but you could keep a > timestamp of the last event read from pen 'x', and if, say, it hasn't > sent anything in 5 minutes, it's device driver can issue a request to > unload it to some manager. Problem is, > > 1. Not all styluses have serial numbers, so not all tablets could > support this. (But so what; that's why you get the tablet with the most > features and the best device drivers...)
OK, then we cannot destinquish between styluses of the same type. That's fine, just one device gets registered. > 2. The driver is only "woken" up when some input device it has control > of sends data. No-one could rely on it accurately knowing when 5 minutes > are up. The driver isn't associated with the individual pen. It is associuated with the tablet. The client sees each pen as a separate device. > > > > That's a good question. Partly because some still consider this > > mailing list being focussed on graphics hardware issues? > > The GUI folks are not very interested in this. There is another > > mailing list [EMAIL PROTECTED] which was established to communicate > > with those groups that are building on top of X. > > > They should be, because I'll next start talking about hot-plugging > monitors, something which does happen in server rooms. And before any of > you ask why an admin would run X locally on a server in the server room, > consider the Win32 admin, who thinks it natural to have a login screen > on every one of his machines. They are out there... > Hot plugging monitors is another issue I wanted to deal with for the last 3 years. Egbert. _______________________________________________ Devel mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/devel
