On Thu, May 29, 2008 at 10:39 AM, charliem_1216 <> wrote:
> --- 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
Thanks Charlie,
I tried creating the ttyAM# devices and didn't work, but not I'm sure
I did something wrong. I'll try again right away.
Gonzalo
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