[Bug 219220] syscalls (ioctls) on USB devices are very slow

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=219220

--- Comment #5 from Matthias Apitz <guru at unixarea.de> ---
dmesg shows only attach and deattach of the mouse (which I inserted just to see
if this would kick the pcscd proc forward):

ugen0.4: <Logitech USB Optical Mouse> at usbus0
ums0 on uhub1
ums0: <Logitech USB Optical Mouse, class 0/0, rev 2.00/63.00, addr 3> on usbus0
ums0: 3 buttons and [XYZ] coordinates ID=0
ugen0.4: <Logitech USB Optical Mouse> at usbus0 (disconnected)
ums0: at uhub1, port 5, addr 3 (disconnected)
ums0: detached
ugen0.4: <Logitech USB Optical Mouse> at usbus0
ums0 on uhub1
ums0: <Logitech USB Optical Mouse, class 0/0, rev 2.00/63.00, addr 4> on usbus0
ums0: 3 buttons and [XYZ] coordinates ID=0
ugen0.4: <Logitech USB Optical Mouse> at usbus0 (disconnected)
ums0: at uhub1, port 5, addr 4 (disconnected)
ums0: detached

nothing else after the boot messages;

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