Re: udev/hotplug and automatic /dev node creation

[Greg KH]

On Wed, Jan 18, 2006 at 03:47:10AM +0100, Horst Schirmeier wrote:
> Hi,
> 
> I'm looking for documentation regarding how to write a Linux kernel
> module that creates its own /dev node via udev/hotplug.
> register_chrdev() and a simple udev/rules.d/ entry don't seem to be
> sufficient...

Yes, register_chrdev() will do nothing for udev.

Take a look at the book, Linux Device Drivers, third edition (free
online).  In the chapter about the driver model, there is a section
about what udev needs.  The functions it says to use are no longer in
the kernel, but it should point you in the right direction (hint, use
class_device_create().)

If you have a pointer to your code, I can probably knock out a patch for
you very quickly.

thanks,

greg k-h
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/