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- From: imhw400@indyvax.iupui.edu
- Newsgroups: comp.os.linux
- Subject: Re: EISA bus machines
- Message-ID: <1992Aug23.080248.159@indyvax.iupui.edu>
- Date: 23 Aug 92 08:02:48 -0500
- References: <1992Aug23.054741.316@athena.mit.edu>
- Lines: 22
-
- In article <1992Aug23.054741.316@athena.mit.edu>, tytso@ATHENA.MIT.EDU (Theodore Ts'o) writes:
- [....]
- > The same situation is true for the MCA bus, although that will be much
- > harder, since MCA isn't even backwards compatible with ISA. At least
- > with EISA, someone could borrow a ISA hard disk controller while he/she
- > was debugging the EISA controller; thus development would be much easier
- > under EISA than it would be under MCA. That's not to say that it
- > wouldn't be possible to include MCA support as well; it would just be
- > much more complicated. So I wouldn't hold your breath for MCA support,
- > but EISA support is within the realm of possibility, assuming someone
- > blessed with such a machine is willing to look at writing Linux drivers
- > for these new controllers.
-
- OK, I'll bite -- why can't an MCA implementation just use the protected-mode
- drivers that came with the machine, that is, the ABIOS? MCA "drivers" should
- be very simple: set up the request block, call the ABIOS routine, interpret
- the updated request block. But I haven't actually tried it, so what have I
- missed?
- --
- Mark H. Wood, Lead Analyst/Programmer +1 317 274 0749 [@disclaimer@]
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