linux-uvc-devel

[Linux-uvc-devel] Initial use of UVC driver

[James W. S. <jws...@co...>]

Here is`what I receive upon initial use of the UVC driver.
I have attached two files both are "dmesg' outputs. First upon plugging 
in the camera
Second after trying xawtv

Kernel
 2.6.14-1.1653_FC4 #1 Tue Dec 13 21:32:09 EST 2005 i686 i686 i386 GNU/Linux
Logitech 046d:08c3

/var/log/messages
Jan  4 19:58:50 manycats kernel: usb 1-3: new high speed USB device 
using ehci_hcd and address 13
Jan  4 19:58:51 manycats kernel: 13:3:1: cannot set freq 0 to ep 0x86
Jan  4 19:58:52 manycats kernel: 13:3:2: cannot set freq 0 to ep 0x86
Jan  4 19:58:53 manycats kernel: 13:3:3: cannot get freq at ep 0x86

Ouput of x xawtv
This is xawtv-3.95, running on Linux/i686 (2.6.14-1.1653_FC4)
/dev/video0 [v4l2]: no overlay support
v4l-conf had some trouble, trying to continue anyway
ioctl: VIDIOC_G_STD(std=0xbfc37ad4 
[PAL_G,PAL_I,PAL_D1,PAL_K,PAL_N,PAL_60,NTSC_M,NTSC_M_JP,?,SECAM_B,SECAM_D,SECAM_L,?ATSC_8_VSB,ATSC_16_VSB,(null),(null),(null),(null),(null),(null)]): 
Invalid argument
ioctl: VIDIOC_S_CTRL(id=9963778;value=39): Input/output error
ioctl: VIDIOC_S_STD(std=0x0 []): Invalid argument
ioctl: VIDIOC_DQBUF(index=0;type=VIDEO_CAPTURE;bytesused=0;flags=0x0 
[];field=ANY;;timecode.type=0;timecode.flags=0;timecode.frames=0;timecode.seconds=0;timecode.minutes=0;timecode.hours=0;timecode.userbits="";sequence=0;memory=unknown): 
Invalid argument
ioctl: VIDIOC_DQBUF(index=0;type=VIDEO_CAPTURE;bytesused=0;flags=0x0 
[];field=ANY;;timecode.type=0;timecode.flags=0;timecode.frames=0;timecode.seconds=0;timecode.minutes=0;timecode.hours=0;timecode.userbits="";sequence=0;memory=unknown): 
Invalid argument
awtv on startup

[Linux-uvc-devel] Initial use of UVC driver

[<jws...@co...>]

I have attempted to view images from the device without success. I have tried xawtv, tvtime and both do not receive images. Upon statup the LED momentarly lights, but that is about all.

In doing some additional analsyis I downloaded compiled then ran the test.c program you posted.  It does access the camera but it tnen completly locks up the system. It appears to me that the Fedora 4 kernel has some differences than a stock kernel that is affecting how the driver functions.

Re: [Linux-uvc-devel] Initial use of UVC driver

[Laurent P. <lau...@sk...>]

Hi James,

> I have attempted to view images from the device without success. I have
> tried xawtv, tvtime and both do not receive images. Upon statup the LED
> momentarly lights, but that is about all.

I tried xawtv in the past, but it hang due to a unrelated problem. I'll try 
with tvtime.

> In doing some additional analsyis I downloaded compiled then ran the test.c
> program you posted.  It does access the camera but it tnen completly locks
> up the system. It appears to me that the Fedora 4 kernel has some
> differences than a stock kernel that is affecting how the driver functions.

Can you run the test program in a virtual console (not under X) and see if you 
get a kernel oops ? If so, please post the report.

Laurent Pinchart

Re: [Linux-uvc-devel] Initial use of UVC driver

[James W. S. <js...@co...>]

Laurent Pinchart wrote:

>Hi James,
>
>  
>
>>I have attempted to view images from the device without success. I have
>>tried xawtv, tvtime and both do not receive images. Upon statup the LED
>>momentarly lights, but that is about all.
>>    
>>
>
>I tried xawtv in the past, but it hang due to a unrelated problem. I'll try 
>with tvtime.
>
>  
>
>>In doing some additional analsyis I downloaded compiled then ran the test.c
>>program you posted.  It does access the camera but it tnen completly locks
>>up the system. It appears to me that the Fedora 4 kernel has some
>>differences than a stock kernel that is affecting how the driver functions.
>>    
>>
>
>Can you run the test program in a virtual console (not under X) and see if you 
>get a kernel oops ? If so, please post the report.
>
>Laurent Pinchart
>_______________________________________________
>Linux-uvc-devel mailing list
>Lin...@li...
>http://lists.berlios.de/mailman/listinfo/linux-uvc-devel
>
>  
>
Laurent,

I configured my system into runlevel 3.
I successfully ran and stoppe your  test program.

Re: [Linux-uvc-devel] Initial use of UVC driver

[Laurent P. <lau...@sk...>]

> >>In doing some additional analsyis I downloaded compiled then ran the
> >> test.c program you posted.  It does access the camera but it tnen
> >> completly locks up the system. It appears to me that the Fedora 4 kernel
> >> has some differences than a stock kernel that is affecting how the
> >> driver functions.
> >
> >Can you run the test program in a virtual console (not under X) and see if
> > you get a kernel oops ? If so, please post the report.
>
> Laurent,
>
> I configured my system into runlevel 3.
> I successfully ran and stoppe your  test program.

Can you reproduce the problem when you run the test program in X ? If so, 
could you try to get a kernel oops report using a serial console (or a net 
console) ?

Laurent Pinchart

[Linux-uvc-devel] Initial use of UVC driver

[James W. S. <jws...@co...>]

I retried the test script under a gnome terminal and it
completed correctly. I will continue to duplicate
the lockup I first experienced.

I need to thank you for developing this driver.

James

Re: [Linux-uvc-devel] Initial use of UVC driver

[Laurent P. <lau...@sk...>]

Hi James,

> Here is`what I receive upon initial use of the UVC driver.
> I have attached two files both are "dmesg' outputs. First upon plugging
> in the camera
> Second after trying xawtv

And what is your problem exactly ?

Laurent Pinchart