Hi MarvS, may be I explained poorly the situation. >Incidentally compiled drivers are only useful for the particular kernel > (resources), they were controlled with. Exar gave me the source code for the driver, not the binary. You can find the file "xr17c15x.c" in the zip that I previously sent to you, anyway I will attach here for reference. I compiled the exar code using my kernel-compiled tree and that went fine. It installed ok. So it should work. Am I missing something? Luca Note: I'm NOT able to send you the source for the driver since the linmodem mailserver bounces back to me all my attempts. You can download them at: http://www.exar.com/Common/Content/ProductDetails.aspx?ID=37