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- Path: sparky!uunet!spool.mu.edu!uwm.edu!miller.cs.uwm.edu!jimj
- From: jimj@miller.cs.uwm.edu (James Jegers)
- Newsgroups: comp.unix.bsd
- Subject: Kernel Device Hacking
- Date: 28 Dec 1992 16:53:55 GMT
- Organization: University of Wisconsin - Milwaukee
- Lines: 29
- Distribution: world
- Message-ID: <1hnbf3INNjd5@uwm.edu>
- NNTP-Posting-Host: 129.89.9.13
-
-
- I'm interested in writing a device driver for the speaker
- on my 386BSD box. I wrote all of my code, and then when I went
- to compile it it came back saying undefined struct clist.
- I poked around the header files for a while, and could find the
- size of clist defined, but nowhere did I find the actuall structure
- defined?
-
- Does 386BSD support clists?
-
- I need some temporary buffers, what can I use instead. I didn't really
- want to write my own FIFO.
-
- Also: I need my driver to be awakened after so many milliseconds.
- can I use the timeout() call to wake myself up? If so, what
- processor priority does that run as, so I can splx(), the other
- half of the code during critical sections.
-
- PS. I was hopeing to write this driver myself, but if anyone
- else already has one, I'd like to look at it.
-
- --
- ______________________________________________________________
- /\ University of Wisconsin -- Milwaukee \
- \_| Computing Services Division Computer Science Department |
- | jimj@csd4.csd.uwm.edu jimj@miller.cs.uwm.edu |
- | jimj@convex.csd.uwm.edu |
- | __________________________________________________________|___
- \_/_____________________________________________________________/
-