--- In "Gonzalo A. de la Vega"
<> wrote:
>
> On Tue, May 27, 2008 at 11:35 PM, charliem_1216 <>
wrote:
> > Hi Gonzalo --
> >
> > --- In "Gonzalo A. de la Vega"
> >
> > <gadelavega@> wrote:
> >>
> >> On Tue, May 27, 2008 at 8:52 PM, Oliver Martin
> >> <oliver.martin@> wrote:
> >> > Am Tue, 27 May 2008 22:46:36 -0000 schrieb Gonzalo A. de la
> > Vega:
> >> >
> >> >> Allright guys... I give up. How do you get udev to show all the
> >> >> devices at startup with TS-Linux? I can boot the 2.6 kernel but
> > then
> >> >> the /dev/ directory is empty. Isn't udev supposed to manage
> > that?
> >> >> I can make nodes like /dev/null but the /dev/ttyAM* won't work.
> >> >>
> >> > If your board comes with 2.4, then it doesn't use udev but
> > devfs. You
> >> > either have to manually install udev in TS-Linux or build your
> > own
> >> > "distro" (i.e., root fs). Have a look at ptxdist, it will give
> > you
> >> > something workable with a bit of experimentation.
> >>
> >> It's a TS7260 so it comes with 2.4, but I built a 2.6, booted, but
> > I
> >> get no devices, despite having installed udev. I'll try ptxdist,
> > at
> >> least to check how they handle this.
> >>
> >> Thanks!
> >>
> >> Gonzalo
> >>
> >
> > I always thought that udev was a little overkill for embedded
> > systems, where you generally know ahead of time what devices you
> > will need, and can make the device nodes the old fashioned way.
> > That's what I did for my 2.6 development, but IIRC there were some
> > devices required that were not immediately obvious.
> >
> > Regards, ...... Charlie
>
> Agree about udev on embedded systems. So you created the nodes
> manually and it worked?
>
Yep, worked great once I got everything that was needed. From memory,
check for device nodes: console, ptmx, tty, tty#, ttyS#, ttyAM#, sd?
And links: ft, stdin, stdout, stderr
And directories: pts (to mount devpts FS), maybe shmem (to mount tmpfs
FS).
I probably forgot some, but look into Documentation/devices.txt in any
recent kernel tree for more details. IIRC I had trouble until I
figured out pts and ptmx.
Regards, ..... Charlie
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