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Re: UDEV on ARM Linux Kernel 2.6.26
El Thu, Oct 16, 2008 at 11:23:47AM +0530 Vivek Kumar Gupta ha dit:
> I want to use UDEV for USB / SD Card on ARM Based Embedded System Device,
> with Linux Kernel 2.6.26.
>
>
>
> Though I have enabled UDEV via make menuconfig
>
> In General setup
> CONFIG_HOTPLUG=y
> and in File systems ->Pseudo filesystems
> CONFIG_SYSFS=y
>
> Nothing is visible when I run my kernel on Embedded Device. I really don't
> see any thing from udev (like udevd or anything executable from udev),
> though I have also created sys directory in rootfs
udevd and other udev binaries are user space tools, you can't expect
them being created by the kernel
> Checked Busybox latest version also there is nothing to support UDEV
> there.
afaik busybox has mdev (mini-udev), though i don't know what
functionality it offers
> Questions:
>
> 1. How to enable UDEV is there any thing I am missing, or I have to take
> some other path to enable.
either build busybox with mdev support or build a full udev
(ftp://ftp.kernel.org/pub/linux/utils/kernel/hotplug/)
be sure to mount /sys on system startup
> 2. How to get UDEV executables on Embedded Device I mean on my rootfs
> (created by busybox)
i don't know your build environment, probably you have to copy it to
your rootfs directory
> 3. Will it run for all default USB Mass storage with-out writing any
> rules?
i think so, though i'm no udev expert
please stop cross-posting to the ARM and USB lists, your question
isn't ARM or USB specific (actually it isn't either a kernel related
question)
--
Matthias Kaehlcke
Embedded Linux Engineer
Barcelona
Representation of the world, like the world itself, is
the work of men; they describe it from their own point
of view, which they confuse with the absolute truth
(Simone de Beauvoir)
.''`.
using free software / Debian GNU/Linux | http://debian.org : :' :
`. `'`
gpg --keyserver pgp.mit.edu --recv-keys 47D8E5D4 `-
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