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Date:      Wed, 20 Jun 2001 09:49:06 -0700 (PDT)
From:      Matthew Jacob <mjacob@feral.com>
To:        Ian Dowse <iedowse@FreeBSD.org>
Cc:        cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject:   Re: cvs commit: src/sys/isa sio.c
Message-ID:  <Pine.BSF.4.21.0106200949000.69192-100000@beppo.feral.com>
In-Reply-To: <200106201647.f5KGlOr12345@freefall.freebsd.org>

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Was this tested on alpha?


On Wed, 20 Jun 2001, Ian Dowse wrote:

> iedowse     2001/06/20 09:47:24 PDT
> 
>   Modified files:
>     sys/isa              sio.c 
>   Log:
>   The serial console break-to-debugger support only functioned while
>   the console device was open. At other times, the interrupts that
>   are used to detect the break signal or ~^B sequence were disabled,
>   so these events would not be noticed until the next open (e.g. the
>   next kernel printf). This was mainly a problem while there was no
>   getty running on the console, such as during bootup or shutdown.
>   
>   For serial consoles with break-to-debugger support, we now enable
>   the generation of interrupts at attach time, and we leave them
>   enabled while the device is closed.
>   
>   Reviewed by:	bde (I've since made chages as per his suggestions)
>   
>   Revision  Changes    Path
>   1.336     +22 -2     src/sys/isa/sio.c
> 


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