How to programmatically turn off LED on USB? [on hold]

How to programmatically turn off LED on USB? [on hold]

I would like to find out how to programmatically turn off the LED on the
USB flash drive. I haven't found any tutorials or good source to get to
started with it.
I'm willing to try to rewrite or to debug drivers if it will be required.
I have experience with programming(any language, but preferably C or
Python). I have experience with OllyDBG and IDA PRO. I have some
experience with engineering(small devices like Arduino).
I'm not interested in disconnecting LED form the board, or closing it with
black duct-tape. I need to do it manually using some script, tool, or by
rewriting the driver.
I have seen a lot of question like this, but non of them have any
information that can be used. I also tried to contact some of the persons
who have answered to similar question, but no luck so far.
I would really appreciate if someone could give me some information or
guideline of how to do this.
P.S.
I need this a start with another project. I want to disable LED on the USB
webcam that I have, but I don't know where to start, so I think it will be
easier to do with a USB flash drive first.
Also, I want to do this on Windows. But if any information is available
for Linux I will gladly look at it.
Any information regarding any flash drive or webcam will do just fine.



I think I have confused many of you. This question is not about turning
off LED on webcam. It's about turning off LED on flash drive. Regular USB
flash drive, where no hard can be done if LED will be disabled. I'm sure
that they have opinion to blink. For example when transmitting data on
flash drive LED in blinking. When it's inactive the LED is on or off. Of
course it depends on the flash drive model and manufacturer. But if
someone can point how to do it on any flash drive and point where to buy
it(eBay, Amazon or any other e-shop), I will be gladly to try it out.