From: Matt Sealey <matt@genesi-usa•com>
To: Stefan Strobl <nst@gersys•de>
Cc: ppc-dev <linuxppc-dev@ozlabs•org>
Subject: Re: ADS5121 how to use /dev/ttyPSC
Date: Wed, 14 Jan 2009 19:30:12 -0600 [thread overview]
Message-ID: <496E91A4.7030406@genesi-usa.com> (raw)
In-Reply-To: <496E172D.9060304@gersys.de>
Stefan Strobl wrote:
> Hi
>
> I'm new to Kernel 2.6 and OF.
>
> I'm using a ADS5121 board with kernel from denx (ads5121 branch from
> linux-2.6-denx). According to my dts file both PSC3 and PSC4 should be
> accessible through /dev/ttyPSC0 and /dev/ttyPSC1 respectively.
>
> When I simply try to run: "$ echo "Hello" > /dev/ttyPSC*" I can't see
> any data coming out from the ports.
Are you sending it to just one of them at a time and just abbreviating
your mail here to include both with a *, or are you really putting that
asterisk in there when you test?
> And when trying to initialize the ports using termios commands I'm
> getting the Error "Inappropriate ioctl for device".
You're doing this manually or with an application?
> But I can see the driver ttyPSC with major 204 in /proc/devices and I
> can also open the device successfully. I am also able to configure
> either port as CONSOLE in U-Boot so the Hardware is ok.
So you're getting debug output (udbg type stuff) on them?
-- Matt Sealey
prev parent reply other threads:[~2009-01-15 1:30 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-14 16:47 ADS5121 how to use /dev/ttyPSC Stefan Strobl
2009-01-15 1:30 ` Matt Sealey [this message]
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