Re: Device or resource busy

[suriya mohan]

Hi,
  Check whether some other process uses /dev/video0 by using 
the
following command in the shell prompt.

fuser /dev/video0.

Kill that process. Then verify from "dmesg" command whether u 
have
loaded the upgraded driver. Default loading using modprobe or 
insmod
will load only the old driver module. Rename the old driver module 
and
use depmod to load new driver module.

Actually I want 2 applications to use /dev/video0 at a time. Thats 
the
reason why i got the device or resource busy message. I solved 
by
upgrading the bttv driver. I am using bttv based "Pixel view play 
Tv
Pro" tv tuner card. so no idea about saa7134 based tv tuner cards. 
But
"Hermann Pitton" one of our member knows more about saa7134 
based
cards.Probably he will reply. If no other process uses /dev/video0 
and
still the "device or resource busy" message occurs, then problem 
is
only with upgradded saa7134 driver.

All the best.

With Regards,
S.Suriya Mohan.


On Sat, 16 Aug 2003 Matthew Tidy wrote :
I have been trying to get my flyvideo 3000 to work under RH 9.  
I
have patched 2.4.21 kernel with the v4l2 modules and have 
installed
the saa7134-0.2.7 drivers.  I have also installed xawtv 3.88.  
The
install process for both the modules and drivers have reported 
no
error messages.  I finally type xawtv at my command line to find 
that
i get this as output
[EMAIL PROTECTED] ~]$ xawtv
This is xawtv-3.88, running on Linux/i686 (2.4.21)
ERROR: plugin magic mismatch
[xawtv=537067817,../libng/plugins/conv-audio.c=537069088]
dlsym[/usr/local/lib/xawtv/conv-audio.so]: xawtv: undefined 
symbol:
_ng_plugin_init
ERROR: plugin magic mismatch
[xawtv=537067817,../libng/plugins/read-mpeg.c=537069088]
ERROR: plugin magic mismatch
[xawtv=537067817,../libng/plugins/read-mpeg.c=537069088]
ERROR: plugin magic mismatch
[xawtv=537067817,../libng/plugins/read-mpeg.c=537069088]
dlsym[/usr/local/lib/xawtv/read-mpeg.so]: xawtv: undefined 
symbol:
_ng_plugin_init
dlopen: /usr/local/lib/xawtv/snd1-oss.so: undefined symbol:
ng_chardev_open
can't open /dev/video0: Device or resource busy
v4l-conf had some trouble, trying to continue anyway
v4l2: open /dev/video0: Device or resource busy
v4l2: open /dev/video0: Device or resource busy
v4l: open /dev/video0: Device or resource busy
no video grabber device available
Now i have been looking over this mailing list for several hours 
now
and   this problem lookms simliar to the one described "Device 
or
resource busy - dont know what to do!" Thread in june.  The 
person
having the problem however managed to solve it but they does not
descibe how they solved it.  I would appreciate if i could get 
some
help on my little problem.
Thanks

Matthew

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