Kdavid@gizzmo.UUCP (David Solan) (07/02/89)
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- The UNIX PC allegedly has the capacity for VERY raw reads of the floppy drive through direct access of the WD2797 chip. According to the manual (gd(7)) issuing the following ioctl: ioctl(fildes, GDCMD, &(fdrq structure)) where the fdrq structure has a WD2797 command (such as read track), should work. Has anyone ever got this to work -- for ANY WD2797 command, and if so, could examples be given? All I get for the above ioctl, after opening the /dev/rfp020 device, is a return of -1 and errno 14, "Bad address". (more info can be found in /usr/include/sys/gdisk.h and /usr/include/sys/gdioctl.h) -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- David Solan Objective Programming Incorporated Post Office Box 123 Norwalk, CT 06856 Voice: (203) 866-6900 attmail: <!dsolan> or <attmail!objctv!kdavid> -- 24 million Americans will die in the next 10 years without their seat belts on. Buckle up now! {codas,u1100a}-----\ David Solan rutgers!rochester!kodak!pcid!gizzmo!kdavid {lazlo,ethos,fthood}-----/