From: serge@euler.Berkeley.EDU serge@euler.Berkeley.EDU
Subject: remote device access
Date: Thu, 27 Apr 1995 20:18:10 -0400 [thread overview]
Message-ID: <19950428001810.XBLbrQ7UuoAaj0ilt_BdiCYQh0R-Hn4MIpqveVUERrs@z> (raw)
(``Oh, no, not this surge guy again.'' :-)
>>You could even conceivably bind /cpu/dri/xxx to /dev/xxx to access
>>cpu server's drivers?
>you can already do that (several ways).
Yes, I know that. I should have been more clear: I meant, e.g. if your
kernel doesn't have the driver you need (e.g. you just hooked up a
CD-ROM to your machine), you can import it from another machine and use
it on your machine. This would differ from importing the binding of the
driver, e.g. /dev/cdrom, from another machine, since then you would be
using _its_ driver with _its_ CD-ROM, rather than with _your_ CD-ROM.
This would be similar to, e.g. QNX, where device drivers are processes.
E.g. you would network mount another machine's disk, run the driver/process
from this network drive and use it to access your local device.
The idea is to make things even more uniform and remove further special
cases. (I.e. the ``#name'' notation is Plan9's analog to major/minor
device numbers / mknod of Unix, which is ``magic''.)
``It has been our observation that when objects behave like files,
practically any program can use them without modification.'' (sic?)
--Ritchie, V8 Streams paper in '85 USENIX
next reply other threads:[~1995-04-28 0:18 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
1995-04-28 0:18 serge [this message]
-- strict thread matches above, loose matches on Subject: below --
1995-04-29 6:54 David
1995-04-29 6:51 David
1995-04-29 6:09 serge
1995-04-28 21:39 serge
1995-04-28 16:04 rob
1995-04-28 8:26 forsyth
1995-04-28 6:52 Boyd
1995-04-27 8:29 forsyth
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