From mboxrd@z Thu Jan 1 00:00:00 1970 From: Denis Joseph Barrow Subject: a new problem with the hso driver Date: Thu, 11 Sep 2008 17:55:33 +0200 Message-ID: <48C93F75.4000703@option.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit To: Linux USB kernel mailing list , Linux netdev Mailing list , Greg Kroah-Hartman , Andrew Bird Return-path: Received: from mailer1.option.com ([81.246.70.162]:28024 "EHLO mailer1.option.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752007AbYIKPzg (ORCPT ); Thu, 11 Sep 2008 11:55:36 -0400 Sender: netdev-owner@vger.kernel.org List-ID: Hi Greg/Andrew, I've a minor problem. If you put the hso driver into powersave mode by going into /sysfs cd /sys/ find . -name idVendor | xargs -n 1 | grep -H af0 cd ./devices/pci0000:00/0000:00:1d.7/usb5/5-4/ or wherever the idVendor is at. cd power/ echo auto > level Then let the driver sleep for about 2 minutes.a It can't be woken up, it appears that the usb layer is looking for a reset_resume function to be implemented. We get the following messages from the kernel [12518.790072] hso 2-2:1.0: no reset_resume for driver hso? [12518.790081] hso 2-2:1.1: no reset_resume for driver hso? [12518.790085] hso 2-2:1.2: no reset_resume for driver hso? How do I implement a reset resume function? could somebody tell me & put in a few comments in include/linux/usb.h Our customer says the device has gone into an S3 sleep whatever the difference between this & the reduced power mode it goes into after 2 seconds when it calls hso_suspend I don't know. On a slightly related issue we get an error -22 ie -EINVAL from usb_submit_urb this though I haven't investigated properly appears to happen when the device is suspended but appears to have no adverse effect on the driver it still seems to work, I haven't really investigated this, whats happening? but would greatly appreciate being pointed in the right direction. -- best regards, D.J. Barrow