Is there a bug in dgnc.ko?

[Sudip Mukherjee]

On Wed, Feb 24, 2016 at 5:27 PM, Navy Cheng <navych at 126.com> wrote:
> On Tue, Feb 23, 2016 at 09:43:56PM -0800, Greg KH wrote:
>> On Wed, Feb 24, 2016 at 12:57:42PM +0800, Navy Cheng wrote:
>> > Hi,
>> >
>> > My kernel version is v4.4, and I have built drivers/staging/dgnc/dgnc.ko.
>> > I change to *dir*/drivers/staging/dgnc and do like this:
>> >
>> >     sudo insmod ./dgnc.ko
>>
>> Do you have the hardware that this driver controls?
>
> I'm not sure. My laptop is Dell Inspiron 14R - 5437 and I don't know if
> there is the right hardware. I often don't know about what a driver is used
> for in drivers/staging/. Is there any good way to know the function of a
> driver or module?
>
>>
>> >     sudo lsmod | grep dgnc
>>
>> Does that show anything?
>
> Output: dgnc                   65536  0
>
>> >     sudo rmmod ./dgnc

what did dmesg showed after you did rmmod?

regards
sudip