I just added "-S" attribute and specified the COM-port. You should find them in controlpanel under "devices and printers", if not you can install drivers for them, they should be here: https://www.silabs.com/products/mcu/Pages/USBtoUARTBridgeVCPDrivers.aspx#windows. My COM-port was "COM3".

Thank you both for the help!! I got it finally to work. I just needed to enter "--scrypt" after "bfgminer" and then in the miner I could just enter the com-port, and the miner found it instantly.

Thanks again for the help!

Hello everyone!
I have recently bought mining hardware from ebay, a small USB-stick that mine scrypt coins and so far I have set up almost everything (pool settings, choosen miner and so on... kind of).  None of my minerers that im testing (cgminer 3.7.2 and bfgminer 5.4.1) can find my usb stick, I have tried to use the "--usb" option on both miners but I just get the error "--usb: unrecognized option". I have tried to add the hardware manually in bfgminer by adding devices but I don't know the name of the device or it's target (and I don't know how to find it), so yea... I' stuck there too. I have also tried to use "-S all" option in both miners but I get the error "-s: 'all' is not a number". I have installed the latest Silicon labs VCP driver so the stick is seen as a COM-port but without result. I have tried zadig and replace the drivers with winUSB drivers (I think the latest) but no luck.

Here is the settings for cgminer 3.7.2

And for bfgminer

The link to the usb-stick from ebay:
http://www.ebay.com/itm/Dogecoi-ltc-Litecoin-Miner-mining-ASIC-USB-All-SCRYPT-Coins-Virtual-Currency-/331680710765?hash=item4d39b6006d:g:INUAAOSwo0JWHP2I

Im stuck at every point and I'm at the brink of giving up. Would be thankful if anyone know what the solution is and could help me!

PS. Sorry if I have misspelled anything