[GRLUG] GRLUG Potluck and Udev

[Michael Mol]

On Wed, Dec 23, 2009 at 11:57 AM, Ben Rousch <brousch at gmail.com> wrote:
> On Wed, Dec 23, 2009 at 11:02 AM, Ben Rousch <brousch at gmail.com> wrote:
>> On Wed, Dec 23, 2009 at 10:34 AM, Michael Mol <mikemol at gmail.com> wrote:
>>>
>>> The general topic at that moment was the webcam built into laptops,
>>> and how could one effectively disable the webcam without physically
>>> removing or modifying the device.
>>
>> There is a package for my EeePC that gives me a menu where I can
>> enable and disable the webcam, wifi, bluetooth, and SD card slot. You
>> can see a screenshot of it, and see the source code at [3]. I could
>> not get the git to clone, but there is a tarball available.
>>
>> [3]  http://greg.geekmind.org/eee-control/
>>
>
> After looking through the code (thank goodness it's Python or I would
> be lost!), I am able to disable my EeePC 901's webcam by writing 0 to
> /sys/devices/platform/eeepc/camera and I can enable it by writing 1 to
> that same file. The SD card reader is similarly enabled and disabled.
> The wifi and bluetooth have other mechanisms which I have not looked
> at.
>
> So it looks to me like these actions things are device-specific.

Very interesting.  That suggests it may be fairly trivial to write an
app that enumerates sysfs and presents a tree of devices with
"enable/disable" options.  The next piece would be how best to have
that enabling and disabling persistent across reboot cycles.

-- 
:wq