Re: Automatic device creation with udev

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On Sat, Apr 21, 2007 at 12:45:35PM +0200, Sebastien Bourdeauducq wrote:
>  Hi,
> 
>  I'm trying in vain to get udev to create device nodes for my new driver. 
>  I've read that udev monitors sysfs for files named "dev" and then creates 
>  the nodes accordingly, so I added an entry in /sys like other drivers do :
> 
>  # cat /sys/devices/pci0000:00/0000:00:1d.1/usb2/2-2/2-2:1.3/dev
>  254:0
>  #

There is no need for this.

> 
>  (am I creating the "dev" file in the right place ?)
> 
>  Udev still ignored my driver, so I added the following lines to 
>  /etc/udev/rules.d/udev.rules, but with no result :
> 
>  KERNEL=="freshtel",             NAME="freshtel"
>  KERNEL=="freshtel[0-9]*",       NAME="freshtel%n"
> 
>  Any suggestion ?

This neither.

What you want is class_create() and device_create(), see section about
udev in LDD3, available at http://lwn.net/Kernel/LDD3/.

Hope this helps.

		Thomas

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