chris@umcp-cs.UUCP (Chris Torek) (02/02/86)
In article <2128@brl-tgr.ARPA> MRC%PANDA@sumex-aim.arpa writes: > I don't see what is so hard about writing a device driver for the > TU81. Tape drives are tape drives. You obviously have not seen MSCP yet. Tape drives are disks connected via a virtual circuit network :-). > A good hacker should be able to knock off a nerdly tape drive device > driver in a day or so, and a good (fully compatible) one in a week > at most. *If* you have manuals. Without knowing which device registers to poke, with which values, and without circuit diagrams and microcode listings and all, it can take a LONG time to figure out how ANYTHING works. Speaking of which . . . does anyone have an order number for a TU81 programmer's manual? As long as I am rewriting the UDA50 driver I would like to write some generic MSCP device routines; it would help if I knew which MSCP things were truly generic. -- In-Real-Life: Chris Torek, Univ of MD Comp Sci Dept (+1 301 454 1415) UUCP: seismo!umcp-cs!chris CSNet: chris@umcp-cs ARPA: chris@mimsy.umd.edu