devd question

[Michael Sperber]

Andriy Gapon <avg at icyb.net.ua> writes:

> on 28/02/2009 16:34 Kostik Belousov said the following:
>> On Sat, Feb 28, 2009 at 02:13:10PM +0100, Michael Sperber wrote:
>>> I'm trying to make devd run an stty command whenever a USB serial device
>>> is attached.  Unfortunately, $device-name is ucom[0-9] and the device
>>> names are /dev/cuaU[0-9] - how do I get the correct name in the device
>>> action?  I haven't found a way to extract the number by itself, so I'm
>>> stuck with specifying a separate rule for each number, like so:
>>>
>>> attach 100 {
>>>         device-name "ucom0";
>>>         action "stty -f /dev/cuaU0.init raw";
>>> };
>>>
>>> Help would be much appreciated!
>> 
>> There are some other notifications that are send through devctl when
>> cdev is created. They have system set to DEVFS, subsystem to CDEV,
>> and type CREATE. The data is the /dev node name. I am not sure how
>> to assign the action in the devd.
>
> A tested example:
> notify 1000 {
>         match   "system"                "DEVFS";
>         match   "subsystem"             "CDEV";
>         match   "cdev"                  "^da[0-9]+$";
>         action  "echo 't120o3l32 b>c+f+16' > /dev/speaker";
> };

I'm probably not understanding this---but how is the device number
transferred from the "cdev" match to the "action" line?

-- 
Cheers =8-} Mike
Friede, Völkerverständigung und überhaupt blabla