Messages in this thread | | | Date | Mon, 10 Sep 2012 12:11:05 +0100 | From | Alan Cox <> | Subject | Re: [PATCH 10/14] tty/serial: Add kgdb_nmi driver |
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On Sun, 9 Sep 2012 21:14:12 -0700 Anton Vorontsov <anton.vorontsov@linaro.org> wrote:
> This special driver makes it possible to temporary use NMI debugger port > as a normal console by issuing 'nmi_console' command (assuming that the > port is attached to KGDB).
No ref counting, no tty port, no compliance with the tty behaviour. Concept looks fine but it needs porting to reflect a kernel newer than about 2.6.18 8)
I would take a quick look at the tty_port helpers and also check v -next which makes the tty_port mandatory. That'll pretty much cover your needs for locking, semantics and the like.
Alan
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