Thanks a lot to everybody especially to Rob for the useful wiki article which brought me forward a bit.
Meanwhile I was told by Linksys that a driver for the USB200M is not available for the maemo linux based OS2008.
Therefore, the link you recommended is clarifying a lot. I understood that the USB 1.0 model USB100M adapter can be used straight away but (there is always a but!) the USB200M (which I posses) needs additional power supply which can not be supported by the USB OTG chip. But the wiki article refers to the N800 !!
Is this valid also the N810 or can N810 supply the adapter without outer help??
This would be my last question for now. Regards, Robert