Around 1 o'clock on Sep 25, Juliusz Chroboczek wrote:

> Some of us still use PS/2 mice...

Nearly all laptops still have the touch pad connected through the PS/2 
port, so until the 2.6 driver is backported to 2.4, we'll need PS/2 
support in X servers.

> Yes; it looks like all input devices go through the single event
> interface in 2.6.  That would seem to guarantee correct ordering of
> events from different devices.

Not automatically; it still requires sorting events from multiple event
streams as each device is presented as a separate file, however the 
timestamps present in each event make it possible to do this correctly.

Old Ultrix machines actually merged the keyboard and mouse event streams 
within the kernel and presented a memory-mapped event queue.  This was 
convenient from the X server's perspective, but seems rather hard to 
manage with the wealth of weird input devices available these days, not to 
mention supporting multiple users on a single machine.

-ketih


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