[LAU] Trying to run jackd from udev

[Jeremy Jongepier]

On 03/23/2013 05:05 PM, R. Mattes wrote:
> But why so utterly complex? Just write a small script that will
> be executed by udev:
>
>   #!/bin/bash
>
>   # give us more realtime
>   ulimit -r 95
>   # N.B.: you might want to also aquire higher memory
>   # and nice settings ...
>
>   # run command ...
>   sudo -u your_user your_command
>
> As a test, use
>
>   sudo -u your_user /bin/bash -c "id && ulimit -a"
>
> to see whether it works.
>
>   HTH Ralf Mattes

Hello Ralf,

Using a wrapper script with 'ulimit -r 95' and then calling my user 
script did the trick. Many thanks!
I find this a bit weird because this sets the ulimit for the user root 
right? Does any process ran by sudo on its turn inherit this setting? So 
sudo doesn't do something with the permissions of the user mentioned by 
the -u option?
Anyway, I'm a happy camper now, whenever I plug in the drumpad into my 
Raspberry Pi it starts jalv hosting drumkv1 and within a few seconds I 
get sound and can start drumming. My kids already had a lot of fun 
playing with the drumpad although my oldest son is somehwat more 
interested in the RPi and all the cabling. He even pulled out the SD 
card while his little sister was banging on the drumpad. Everything just 
kept going. Linux still amazes me every so often.

Regards,

Jeremy