From mboxrd@z Thu Jan 1 00:00:00 1970 From: Valentina Manea Date: Fri, 14 Feb 2014 17:35:31 +0000 Subject: /dev entry of USB device not disappearing after detach Message-Id: List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-hotplug@vger.kernel.org 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