On Sat, Jul 16, 2016 at 4:33 PM, Greg KH <g...@kroah.com> wrote:
> That's not how USB protocols work, they are driven from the host, not
> the device, your computer is asking that keyboard if it constantly has
> new data, it's not driven by how fast or slow you type.

Not a USB person, I didn't know.  I prefer "I have data ready" interrupts,
but that's not USB.

>> In any case, "better to" question, in my case, it's "no".  I do not
>> like having three keyboards stacked one on top of another.  So I
>> really need some way to fix this.  :(
>
> Buy a USB 3 hub, that should resolve the issue for you, have you tried
> that?

It *IS* a USB-3.0 hub plugged into a USB 3.0 port.
Those "Genesys Logic 4-port hub" thingys are USB 3.0.

$ lsusb|sort
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 05e3:0610 Genesys Logic, Inc. 4-port hub
Bus 001 Device 005: ID 048d:1366 Integrated Technology Express, Inc.
Bus 001 Device 006: ID 05ac:1002 Apple, Inc. Extended Keyboard Hub [Mitsumi]
Bus 001 Device 007: ID 046d:c245 Logitech, Inc. G400 Optical Mouse
Bus 001 Device 008: ID 05e3:0610 Genesys Logic, Inc. 4-port hub
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