chris@neabbs.UUCP (CHRIS WETEMANS) (06/02/91)
Who knows if it's possible to adress the PC-bus, when your computer is running under SCO Unix V/386 version 3.2? A friend of mine uses SCO Unix, and he says there is no way he can access his interface cards. Chris. --- Happiness lies in being privedged to work hard --- --- for long hours in doing whatever you think is --- --- worth doing. Robert A. Heinlein ---
6600joef@ucsbuxa.ucsb.edu (Joe Foster) (06/05/91)
In comp.unix.xenix.sco <chris@neabbs.UUCP> writes: >Who knows if it's possible to adress the PC-bus, when your >computer is running under SCO Unix V/386 version 3.2? Only the UNIX kernel may directly access I/O ports and physical memory (in case those cards are memory-mapped). Your friend will have to write drivers for each interface card. There are plenty of books and things on this subject, but writing device drivers is something like black magic. If these cards have a BIOS, it is unusable in UNIX. If the manufacturer of the cards does not want to divulge the low-level info needed to write a driver for it, your friend is out of luck. Good luck! Joe Foster 6600joef@ucsbuxa.ucsb.edu
nlane@well.sf.ca.us (Nathan D. Lane) (06/13/91)
In article <11845@hub.ucsb.edu> 6600joef@ucsbuxa.ucsb.edu (Joe Foster) writes: >In comp.unix.xenix.sco <chris@neabbs.UUCP> writes: > >>Who knows if it's possible to adress the PC-bus, when your >>computer is running under SCO Unix V/386 version 3.2? > >Only the UNIX kernel may directly access I/O ports and physical memory (in >case those cards are memory-mapped). Your friend will have to write drivers >for each interface card. There are plenty of books and things on this >subject, but writing device drivers is something like black magic. If these >cards have a BIOS, it is unusable in UNIX. If the manufacturer of the cards >does not want to divulge the low-level info needed to write a driver for it, >your friend is out of luck. > >Good luck! > >Joe Foster >6600joef@ucsbuxa.ucsb.edu It is possible for a kernel device driver to access the ports in the pc and I have found a program that will let it be done. It is called peek and I believe it is a kernel driver that will let you access ports. It is available at svin02.info.win.tue.nl in /pub/sysvX86/peek.tar.Z. I'm not sure if it will work with SCO or not. p.s. If anyone can ftp that address, could you mail me a copy of the program? (I can't ftp right now.) Thanks in advance. -Nathan Lane Digital Technology Service Santa Barbara, CA (805) 683-3760