Path: utzoo!utgpu!cunews!bnrgate!brtph3!brchh104!brchs1!bnr.ca!rice.edu!sun-spots-request From: mitra@scbtan.larc.nasa.gov (Mitra Mousumi) Newsgroups: comp.sys.sun Subject: Dev. driver for VMIVME-2510B I/O board Keywords: Hardware Message-ID: <1198@brchh104.bnr.ca> Date: 11 Jan 91 19:59:58 GMT Sender: news@brchh104.bnr.ca Organization: Sun-Spots Lines: 16 Approved: Sun-Spots@rice.edu X-Sun-Spots-Digest: Volume 10, Issue 13, message 12 X-Note: Submissions: sun-spots@rice.edu, Admin: sun-spots-request@rice.edu I need help concerning the following issue: We have a VMIVME-2510B 64-Bit TTL I/O board installed on one of our Sun 3/160 machines running SunOS 4.0.3. Unfortunately we are not having much luck using it - no device driver is provided for the board and if we try to run some of our programs using the "mmap" utility, we keep getting a "Bus error (core dump)". The Sun Device driver manual mentions that "Attempts to access supervisor-only device registers without supervisor privilege might produce a bus error ..". We think the board is set up to support supervisory access and so are confused. Has anyone used such a board and if so could you please help us. We have tried getting help from VME Microsystems (makers of this board) without any success. Mousumi Mitra (mitra@scbtan.larc.nasa.gov).