Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!bloom-beacon!gatech!rutgers!bellcore!tness7!tness1!sugar!ssd From: ssd@sugar.UUCP (Scott Denham) Newsgroups: comp.sys.amiga.tech Subject: TD_RAWREAD & Length error (-4) Message-ID: <2262@sugar.UUCP> Date: 6 Jul 88 23:11:33 GMT Organization: Sugar Land UNIX - Houston, TX Lines: 10 I need some help in using the trackdisk TD_RAWREAD function - I'm working with a routine someone else started, and havent been able to get past an IOERR of -4 (invalid length). I've tried different lengths, turning the index sync bit on and off, all to no avail. It's not clear to me exactly what length is being complained about; the operation starts, the disk spins up, but all I get back in the IO request block is this nasty little -4!! Thanks !! Scott Denham