jtn@potomac.ads.com (John T. Nelson) (02/09/90)
I'm playing around with the functions OpenDriver, FSRead, FSWrite and so on. I'm having problems with FSRead though. After using OpenDriver to open up the modem input driver I do an FSRead, but FSRead returns a -19 error code which means the input driver could not support the FSRead call. Now why wouldn't the driver be able to support an FSRead call? My refNum is okay and all the other parameteres look kosher. Could it be that I'm supposed to use RAMSDOpen and not OpenDevice? By the way... FSWrite works fine.