From mboxrd@z Thu Jan  1 00:00:00 1970
From: Greg KH <greg@kroah.com>
Date: Wed, 10 Feb 2016 16:17:54 +0000
Subject: Re: Fwd: Information request on /dev/bus/usb
Message-Id: <20160210161754.GB11999@kroah.com>
List-Id: <linux-hotplug.vger.kernel.org>
References: <CAHsu+ktg3E_6Sj0=F0P-5zeXM7Acq1_hk0qZNebG4nHC7Vig7g@mail.gmail.com>
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To: linux-hotplug@vger.kernel.org

On Wed, Feb 10, 2016 at 04:48:49PM +0530, Ahamed wrote:
> Hi,
> 
> Looks like we have some issues enabling udev.
> So, as an alternative, I mounted devtmpfs using the command
> 
> mount -t devtmpfs none /dev
> 
> Now all the USB devices are available.

udev is not an "alternative" to devtmpfs, they work in tandom, you need
both.

good luck!

greg k-h