From mboxrd@z Thu Jan  1 00:00:00 1970
From: Marcel Holtmann <marcel@holtmann.org>
Date: Mon, 27 Jul 2009 21:32:34 +0000
Subject: Re: [PATCH 1/2] hid2hci: iterate libusb devices twice
Message-Id: <1248730354.28545.214.camel@violet>
List-Id: <linux-hotplug.vger.kernel.org>
References: <4A6E19FD.7040908@dell.com>
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To: linux-hotplug@vger.kernel.org

Hi Mario,

> After the previous cleanup submitted to hid2hci, a race condition has
> been exposed with regard to libusb.  Even though we know the bus and
> devnum are existing, the call to usb_find_devices isn't necessarily
> finding it on the first time after the device is introduced to the bus
> by the BT killswitch.  I'm not too keen upon iterating something twice
> as a solution, it does solve the problem until a method is introduced in
> usb_device_open_from_udev that doesn't require libusb's iteration of the
> bus in the first place.

then the usage of libusb needs to be removed. Read Kay's statement about
libusb being utterly stupid.

Regards

Marcel