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[pwc] pwc900NC driver parameters

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Subject: [pwc] pwc900NC driver parameters
From: Bernd <>
Date: Mon, 27 Mar 2006 19:53:12 +0200
> On Sun, Mar 26, 2006 at 07:52:10AM +0200, Bernd wrote:
> > Hello,
> > I have a couple of issues using the module parameters for the pwc driver
> > with the PWC900NC.
> >
> > How can I use the pwc driver parameters to turn on / off the LED's? I
> > tried several combinations with modprobe, but never had success.
>
> Perhaps we need to send a new command to control the led, but i've never
> use this feature. Astromy guy's disable the light but open the webcam.
>
It is not a big thing, just confusing me sometimes. (LED's on ... Cam on, 
LED's off, Cam off, you know what I mean?
pwc accepts the params from modporbe without any error, but nothing 
happens.... 

> > The same thing is the debug 'trace' option. How can I enable / disable
> > it?
>
> using insmod pwc.ko trace=65535 [other options]
> or edit /etc/modprobe.conf /etc/modprobe.d/ ...
>
> like any others options for a module.
>
> Luc

OK, here ist the modprobe output:

linux:/home/bernd # modprobe pwc trace=65535
FATAL: Error inserting pwc                        --> I've also tried 
trace=0..10, same result 
(/lib/modules/2.6.13-15.8-default/kernel/drivers/usb/media/pwc.ko): Unknown 
symbol in module, or unknown parameter (see dmesg)

dmesg:
Mar 27 19:34:52 linux kernel: pwc: module not supported by Novell, setting U 
taint flag.
Mar 27 19:34:52 linux kernel: pwc: Unknown parameter `trace'

same with insmod:
linux:/home/bernd # 
insmod /lib/modules/2.6.13-15.8-default/kernel/drivers/usb/media/pwc.ko trace 
65535

insmod: error inserting 
'/lib/modules/2.6.13-15.8-default/kernel/drivers/usb/media/pwc.ko': -1 
Unknown symbol in module

dmesg:

Mar 27 19:50:07 linux kernel: pwc: module not supported by Novell, setting U 
taint flag.
Mar 27 19:50:07 linux kernel: pwc: Unknown parameter `trace'
Bernd

I really would like to debug that, but ;-) I probably need the 'trace' 
parameter.

I appreciate your comments.
Bernd


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