Motion - Support Question 2005x 12x 09x 233702

What config options are most likely to generate ioctl (VIDIOCGCHAN): Inv arg error?


I have installed kernel and compiled it to also support my SAA7134 (FlyVideo3000) card. I'm also fairly sure that the modprobe that was passed with card=2 tuner=17 are correct.

I've tried input settings from 1 thru 8 with no success and ffmpeg is installed.

Any thoughts?

[0] Processing thread 0
[1] Thread is from
[1] Thread started
[1] ioctl (VIDIOCGCHAN): Invalid argument
[1] motion-httpd/3.2.3 running, accepting connections


Motion version: 3.2.3
ffmpeg version: 0.4.9.pre
Libraries: ffmpeg, mysql, postgresql
Server OS: CENTOS (RHE clone)

-- RayAllen - 09 Dec 2005

Follow up

What is the value for input parameter in your motion.conf ? ( It should be 0,1 or 2 )

-- AngelCarpintero - 12 Dec 2005

I recompiled the kernel and set modprobe.conf to select the card as card=2 and tuner=42. This seems to have corrected the original problem (by giving it the correct values). I must admit to being new to playing with V4L, but am not a novice linux user ~Not exactly admin material either btw). I have an X10 wireless video camera's reception point connected via the Cable bnc connection. And the Channel is set to :

#Channel 3 61.25MHz according to a google search


# Given in KHz per the config instructions

Yet, I still don't get a signal to the application. I have verified that the camera and station work by conneting to a TV first. The card appears to be the only hinderance. If there is a good V4L tutorial/how-to that you know of, please post, so I (and others in a similar predicament) can look there as well.

-- RayAllen - 12 Dec 2005


Go to , there's a nice twiki with a lot of useful information, for Saa7134 devices click Here

-- AngelCarpintero - 12 Dec 2005

SupportForm edit

TopicTitle What config options are most likely to generate ioctl (VIDIOCGCHAN): Inv arg error?
SupportStatus AnsweredQuestions
AssignedQuestionTo Angel.Carpintero
SubmittedBy RayAllen
Topic revision: r4 - 12 Dec 2005, AngelCarpintero
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