From mboxrd@z Thu Jan  1 00:00:00 1970
From: Anton Fedorov <datacompboy@call2ru.com>
Date: Tue, 24 Feb 2009 07:38:20 +0000
Subject: ftdi_sio usb-serial driver and hotplug
Message-Id: <559911452.20090224133820@call2ru.com>
MIME-Version: 1
Content-Type: multipart/mixed; boundary="----------66E51BBAFEB11E"
List-Id: <linux-hotplug.vger.kernel.org>
To: linux-hotplug@vger.kernel.org

------------66E51BBAFEB11E
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: quoted-printable

Hi guys!

   For my device control i need to have latency set up into 1,
otherwise i have poor performance.

   I can write 1 into /sys/bus/usb_sertial/devices/ttyUSB0/latency_timer,
but only as root, and need to re-write into it after every reconnect device,
that weird.

   I have tried to setup udev, by putting into /etc/udev/rules.d/
   file z99_ftdi.rules with contents:
DRIVER=3D"ftdi_sio", SUBSYSTEM=3D=3D"usb-serial", ATTR{latency_timer}=3D"1"
   test of rules show that it should correctly write on connection,
   but after reconnect of device it doesn't have latency_timer
   changed -- it still have 16 latency set :(

   Where and what I have missed in rule?

--=20
Best regards,
  Anton
  Call2Ru Service
  datacompboy@call2ru.com

------------66E51BBAFEB11E
Content-Type: application/pgp-signature

-----BEGIN PGP MESSAGE-----
Version: PGPsdk version 1.7.1 (C) 1997-1999 Network Associates, Inc. and its affiliated companies.

iQA/AwUBSaNPjdly8UZA95sGEQL79wCffDDjR5Qu1LmPB6JdlsrfH0MJBGMAn007
qQ5Ms38TST0ezyKlx9tC5s2E
=sniI
-----END PGP MESSAGE-----

------------66E51BBAFEB11E--