Get USB Device Class Type and Mount point

From: apawar.linux@gmail.com (Abhijit Pawar)
To: kernelnewbies@lists.kernelnewbies.org
Subject: Get USB Device Class Type and Mount point
Date: Mon, 13 Feb 2012 18:01:05 +0530	[thread overview]
Message-ID: <4F390289.90708@gmail.com> (raw)
In-Reply-To: <CAC+QLdS0cYmgtLSXYG=E5JRrjdrRjS084rVHngfDBqkyfD_13w@mail.gmail.com>

On 02/13/2012 05:51 PM, Mandeep Sandhu wrote:
>>>>> greg k-h
>>>> I am trying to find out if any storage disk is connected to USB port
>>>> and get its mount so that I an encrypt that mount with encrypted
>>>> filesystem.
>>> Great, then do that from userspace, like it is done today.  Or do you
>>> have a problem with how things are done today with encrypted
>>> filesystems?  If so, why?
>>>
>>> greg k-h
>>>
>>> _______________________________________________
>>> Kernelnewbies mailing list
>>> Kernelnewbies at kernelnewbies.org
>>> http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
>> Hi Greg,
>> The  reason I went for kernel module is to get the device add
>> notification. However once I get the notification, I can have netlink
> Well, thats not a good enough reason to go to kernel space! :)
>
> Have you looked at Udev? It nicely handles device attach/detach events
> (hotplug events) from userspace. You should probably look at using it
> for your purpose.
>
> http://en.wikipedia.org/wiki/Udev
>
> HTH,
> -mandeep
>
Yes. I should have looked into libudev and libsysfs which I am doing now. :)
Regarding going to kernel , I thought that would be help me in 
controlling the device in a better way (where I can enable or disable 
the data transfer interfaces  preventing the data copy (if at all thats 
possible).

Regards,
Abhijit Pawar