Re: [REVIEW] move tty lock/initial up in the stack

From: Poul-Henning Kamp (phk_at_phk.freebsd.dk)
Date: 06/20/04

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    To: "M. Warner Losh" <imp@bsdimp.com>
Date: Sun, 20 Jun 2004 21:42:11 +0200

    In message <20040620.122057.84501606.imp@bsdimp.com>, "M. Warner Losh" writes:
    >:
    >: PS: I just added cyclades to the list of references there. Feel free
    >: to add more or replace this with a better one.
    >
    >OK. I've added a few of my own notes to the mix. I think that
    >fleshing out the notes a little more might be useful. It looks like
    >there are many granularities for the knowning about which uarts
    >generated. It looks like on stallion cards, for example, you know
    >which pannel generated an interrupt, but that the pannel might have 4
    >different multi-port uarts you have to then go query.

    I put a cautionary note about sync devices there. I would really
    advocate not going anywhere near sync modes unless we have a really
    compelling reason to. 

    -- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.
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