Date: Tue, 11 Oct 2016 18:50:22 +0200 From: Polytropon <freebsd@edvax.de> To: Boris Samorodov <bsam@passap.ru> Cc: freebsd-questions@freebsd.org Subject: Re: Call-out ports renamed cuadX -> cuauX -- when? Message-ID: <20161011185022.833bf6b8.freebsd@edvax.de> In-Reply-To: <c912726f-60ce-165d-5b2a-096124657039@passap.ru> References: <af98a804-be12-8a27-a1bd-4c9dd2f73a87@passap.ru> <20161011002250.067f2b85.freebsd@edvax.de> <20161011005255.a54c4215.freebsd@edvax.de> <c912726f-60ce-165d-5b2a-096124657039@passap.ru>
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On Tue, 11 Oct 2016 13:37:47 +0300, Boris Samorodov wrote:
> 11.10.2016 01:52, Polytropon пишет:
>
> > On my FreeBSD 8 home system, "man 4 sio" contains the following
> > convention in the FILES section:
>
> Just a note. Those are two different device drivers: sio and uart.
> It's UART(4) that uses the 'u' notation for cua (call-up asynchronous)
> ports.
Good finding! Checking "man 4 uart" for 12-CURRENT says:
/dev/ttyu? for callin ports
/dev/ttyu?.init
/dev/ttyu?.lock corresponding callin initial-state and lock-state
devices
/dev/cuau? for callout ports
/dev/cuau?.init
/dev/cuau?.lock corresponding callout initial-state and lock-state
devices
which is exactly the same as I see it on my 8.2 home system.
So that part of the mystery has successfully been solved. :-)
> I guess, my question may be transformed to "when did the UART driver
> become the default". (may be around 7->8)?
On 8.2, "uart" part of GENERIC. On 5.2-p8, "sio" is used instead.
(Sadly I currently don't have access to FreeBSD systems v6 and v7.)
That narrows down the search a bit - you just have to check the
revisions of conf/GENERIC to see when the change happened. :-)
--
Polytropon
Magdeburg, Germany
Happy FreeBSD user since 4.0
Andra moi ennepe, Mousa, ...
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