24 Mar
2013
24 Mar
'13
2:08 p.m.
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