From: Valentina Manea <valentina.manea.m@gmail.com>
To: linux-hotplug@vger.kernel.org
Subject: /dev entry of USB device not disappearing after detach
Date: Fri, 14 Feb 2014 17:35:31 +0000 [thread overview]
Message-ID: <CABdoFFfdXunfN+q1wJWGJbh9UGzD+9z9257ZXMM_qDhg3X8zTQ@mail.gmail.com> (raw)
Hello,
I am working on a driver for a virtual USB host controller. When I attach a USB
device, everything is fine - sysfs files are created, /dev entry is
created, device is usable.
However, when I detach it, the /dev entry still remains. The sysfs
files are removed, as expected. Obviously, the /dev entry is no longer
usable, e.g. it can't be used for mounting.
The output from udevmon is here [1]. vhci_hcd is the device representing the
USB hub and 2-1 is the bus ID of the attached device.
As far as I can tell, udevd receives the remove event but, for some
reason, the /dev entry still remains.
Any help is greatly appreciated.
Thanks,
Valentina
[1] http://pastebin.com/0M2pSGw1
next reply other threads:[~2014-02-14 17:35 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-14 17:35 Valentina Manea [this message]
2014-02-14 18:20 ` /dev entry of USB device not disappearing after detach Greg KH
2014-02-14 18:21 ` Greg KH
2014-02-15 12:38 ` Valentina Manea
2014-02-15 16:52 ` Greg KH
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