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

[bugzilla-noreply at freebsd.org]

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

--- Comment #24 from Matthias Apitz <guru at unixarea.de> ---
(In reply to Hans Petter Selasky from comment #23)

I disabled all of them:

# grep enumer /boot/loader.conf
dev.uhub.0.disable_enumeration=1
dev.uhub.1.disable_enumeration=1
dev.uhub.2.disable_enumeration=1

with the following results:

usbdump stopped working on all usbusN:

root at c720-r314251:/home/guru # usbdump -i usbus0
^C
0 packets captured
0 packets received by filter
0 packets dropped by kernel
root at c720-r314251:/home/guru # usbdump -i usbus1
^C^C
0 packets captured
0 packets received by filter
0 packets dropped by kernel

the pcscd starts quickly up to polling:

# /usr/local/sbin/pcscd --debug --foreground 
00000000 pcscdaemon.c:346:main() pcscd set to foreground with debug send to
stdout
00000567 configfile.l:358:DBGetReaderList() Parsing conf file:
/usr/local/etc/reader.conf.d
00000057 pcscdaemon.c:655:main() pcsc-lite 1.8.20 daemon ready.
00015076 hotplug_libusb.c:440:HPEstablishUSBNotifications() Driver
ifd-ccid.bundle does not support IFD_GENERATE_HOTPLUG. Using active polling
instead.
00000711 hotplug_libusb.c:449:HPEstablishUSBNotifications() Polling forced
every 1 second(s)


BUT none of the two USB plugin slots give any reaction in /var/log/messages on
plugin USB devices and give not any light on the USB sticks itself;

We say in German (translated): Operation successful, patient is dead :-)

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