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[ts-7000] TS-7800 ioctl issues while using v4l and webcams

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Subject: [ts-7000] TS-7800 ioctl issues while using v4l and webcams
From: "tigordito" <>
Date: Tue, 25 Mar 2008 19:15:35 -0000
Dear community,

We had in the past an application based on webcam-server running fine 
on the TS-7300 (kernel 2.4.x) with two old webcams using the pwc 9.x 
driver.

Now, we have take a step into a brand new TS-7800 (btw there is no 
adequate manual or enough information, we are pretty disappointed 
about the lack of documentation on the FPGA but that's another story).

About my issue, so we tried our application on our TS-7800 (kernel 
2.6.21) but it's not working.  The webcam is well recognized and 
cat /dev/video0 gives an output.  

But when launching the application we are getting ioctl issues:

:root# webcam-server
ioctl (VIDIOCGCAP): Invalid argument
ioctl (VIDIOCSPICT): Invalid argument
error setting video device parameters, using defaults
ioctl (VIDIOCGCAP): Invalid argument
ioctl (VIDIOCSPICT): Invalid argument
not a valid video device? quitting.


What could be done ?
A video for linux version issue, a pwc driver issue ?
Does anyone can suggest another distribution to put on the last 
partition of the SD card ?

We tried all different os version available on the ftp, crosscompiled 
with all different crosstool available, still the same errors.


Thanks for your help as the support staff doesn't reply for weeks,

Happy Easter,
Francois


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