SUCCESS - KWorld VS-USB2800D recognized as PointNix Intra-Oral Camera - No Composite Input

[13703.852052] usb 1-6: new high speed USB device using ehci_hcd and address 6
[13703.985055] usb 1-6: configuration #1 chosen from 1 choice
[13704.110261] Linux video capture interface: v2.00
[13704.142555] em28xx: New device @ 480 Mbps (eb1a:2860, interface 0, class 0)
[13704.143637] em28xx #0: Identified as Unknown EM2750/28xx video grabber (card=1)
[13704.145734] em28xx #0: chip ID is em2860
[13704.238342] em28xx #0: board has no eeprom
[13704.252594] em28xx #0: found i2c device @ 0x4a [saa7113h]
[13704.286824] em28xx #0: Your board has no unique USB ID.
[13704.286836] em28xx #0: A hint were successfully done, based on i2c devicelist hash.
[13704.286843] em28xx #0: This method is not 100% failproof.
[13704.286849] em28xx #0: If the board were missdetected, please email this log to:
[13704.286854] em28xx #0:     V4L Mailing List  <[email protected]>
[13704.286859] em28xx #0: Board detected as EM2860/SAA711X Reference Design
[13704.286865] em28xx #0: Registering snapshot button...
[13704.287002] input: em28xx snapshot button as /devices/pci0000:00/0000:00:1d.7/usb1/1-6/input/input7
[13704.712507] saa7115 3-0025: saa7113 found (1f7113d0e100000) @ 0x4a (em28xx #0)
[13705.448275] em28xx #0: Config register raw data: 0x00

[13705.448286] em28xx #0: No AC97 audio processor
[13705.548029] em28xx #0: v4l2 driver version 0.1.2
[13705.832260] em28xx #0: V4L2 device registered as /dev/video0 and /dev/vbi0
[13705.832324] usbcore: registered new interface driver em28xx
[13705.832332] em28xx driver loaded
[13705.871760] em28xx-audio.c: probing for em28x1 non standard usbaudio
[13705.871780] em28xx-audio.c: Copyright (C) 2006 Markus Rechberger
[13705.876321] Em28xx: Initialized (Em28xx Audio Extension) extension

Dear folks @ V4L List,

I'd just quickly like to let everybody know that I am now able to capture S-Video AND Composite video from my KWorld VS-USB2800D using the latest development snapshot of v4l-dvb. Kudos to Douglas Schilling Landgraf for helping me with the steps to download and recompile the v4l-dvb drivers, specifically the em28xx driver which pertains to my capture device.

As a nice side effect, I am also now able to select a new audio capture device embedded in the VS-USB2800D device instead of using the extra line-in wire that comes out of the device. I used to have to feed that cable into the line-in of my sound card. Now, I get an actual device called "Empia Em28xx Audio Empia 28xx Capture (ALSA)" in Ubuntu's Sound Preferences dialog.

Quoted 9 lines · Kay Wrobel

Dear folks @ V4L List,

I'd just quickly like to let everybody know that I am now able to capture S-Video AND Composite video from my KWorld VS-USB2800D using the latest development snapshot of v4l-dvb. Kudos to Douglas Schilling Landgraf for helping me with the steps to download and recompile the v4l-dvb drivers, specifically the em28xx driver which pertains to my capture device.

Quoted 6 lines

As a nice side effect, I am also now able to select a new audio capture device embedded in the VS-USB2800D device instead of using the extra line-in wire that comes out of the device. I used to have to feed that cable into the line-in of my sound card. Now, I get an actual device called "Empia Em28xx Audio Empia 28xx Capture (ALSA)" in Ubuntu's Sound Preferences dialog.

Hello Kay,

Yeah, I added support for that device last week. However, the fact that the audio device is being created is actually a bug. That particular board does not support providing the audio over the USB port. I submitted a PULL request last night to prevent the audio device from being created for that board.

Are you saying that the audio device is actually delivering sound? If so, I definitely would like you to contact me since I have no idea how that is possible and would want to know more.

Devin

Signature · 2 lines

Devin J. Heitmueller - Kernel Labs
http://www.kernellabs.com

Devin,

You're right. I'm not getting any audio from that device. My excitement was premature. The Composite video, however, works great now. Thanks for that.

Kay

Dear folks @ V4L List,

I'd just quickly like to let everybody know that I am now able to capture S-Video AND Composite video from my KWorld VS-USB2800D using the latest development snapshot of v4l-dvb. Kudos to Douglas Schilling Landgraf for helping me with the steps to download and recompile the v4l-dvb drivers, specifically the em28xx driver which pertains to my capture device.

As a nice side effect, I am also now able to select a new audio capture device embedded in the VS-USB2800D device instead of using the extra line-in wire that comes out of the device. I used to have to feed that cable into the line-in of my sound card. Now, I get an actual device called "Empia Em28xx Audio Empia 28xx Capture (ALSA)" in Ubuntu's Sound Preferences dialog.

These are the steps I followed to get the driver downloaded and compiled (again, thanks Douglas):

1) rmmod em28xx (remove any driver pre-loaded)

2) Check version of your kernel
uname -r

3) Making backup
cp -R /lib/modules/KERNELVERSION/kernel/drivers/media/video/em28xx
/BACKUPDIR

4) Installing dev stuff
apt-get install build-essential mercurial -y

5) Download and recompile
shell> hg clone http://www.linuxtv.org/hg/v4l-dvb
shell> cd v4l-dvb
shell> make
shell> make unload
shell> make install
shell> dmesg -c (clear your dmesg)
shell> modprobe em28xx

The new dmesg output is:

Quoted 28 lines

[13703.852052] usb 1-6: new high speed USB device using ehci_hcd and
address 6
[13703.985055] usb 1-6: configuration #1 chosen from 1 choice
[13704.110261] Linux video capture interface: v2.00
[13704.142555] em28xx: New device @ 480 Mbps (eb1a:2860, interface 0,
class 0)
[13704.143637] em28xx #0: Identified as Unknown EM2750/28xx video grabber
(card=1)
[13704.145734] em28xx #0: chip ID is em2860
[13704.238342] em28xx #0: board has no eeprom
[13704.252594] em28xx #0: found i2c device @ 0x4a [saa7113h]
[13704.286824] em28xx #0: Your board has no unique USB ID.
[13704.286836] em28xx #0: A hint were successfully done, based on i2c
devicelist hash.
[13704.286843] em28xx #0: This method is not 100% failproof.
[13704.286849] em28xx #0: If the board were missdetected, please email
this log to:
[13704.286854] em28xx #0:     V4L Mailing List 
<[email protected]>
[13704.286859] em28xx #0: Board detected as EM2860/SAA711X Reference
Design
[13704.286865] em28xx #0: Registering snapshot button...
[13704.287002] input: em28xx snapshot button as
/devices/pci0000:00/0000:00:1d.7/usb1/1-6/input/input7
[13704.712507] saa7115 3-0025: saa7113 found (1f7113d0e100000) @ 0x4a
(em28xx #0)
[13705.448275] em28xx #0: Config register raw data: 0x00
[13705.448286] em28xx #0: No AC97 audio processor

Quoted 8 lines

[13705.548029] em28xx #0: v4l2 driver version 0.1.2
[13705.832260] em28xx #0: V4L2 device registered as /dev/video0 and
/dev/vbi0
[13705.832324] usbcore: registered new interface driver em28xx
[13705.832332] em28xx driver loaded
[13705.871760] em28xx-audio.c: probing for em28x1 non standard usbaudio
[13705.871780] em28xx-audio.c: Copyright (C) 2006 Markus Rechberger
[13705.876321] Em28xx: Initialized (Em28xx Audio Extension) extension

So finally I can use the device the way I had intended it to: Play Super Mario Galaxy on my Wii connected to my laptop ;-)

Cheers.

----- Original message -----
From: "Kay Wrobel" <[email protected]>
To: "V4L Mailing List" <[email protected]>
Date: Tue, 09 Jun 2009 14:58:01 -0500
Subject: KWorld VS-USB2800D recognized as PointNix Intra-Oral Camera - No Composite Input

Hi video4linux list,

This may be something that has been asked in the past. I have a KWorld VS-USB2800D video capture device and my Ubuntu 9.04 Jaunty recognizes it as a PointNix Intra-Oral Camera. The only thing that works is the S-Video input. However, I'd like to use the Composite input (regular yellow RCA). So here's the dmesg:

[18325.975026] usb 3-2.2: USB disconnect, address 7
[18406.553718] usb 3-2.2: new full speed USB device using uhci_hcd and
address 8
[18406.655706] usb 3-2.2: not running at top speed; connect to a high
speed hub
[18406.664296] usb 3-2.2: configuration #1 chosen from 1 choice
[18406.666788] hub 3-2.2:1.0: USB hub found
[18406.668783] hub 3-2.2:1.0: 4 ports detected
[20149.760030] usb 1-6: new high speed USB device using ehci_hcd and
address 5
[20149.892966] usb 1-6: configuration #1 chosen from 1 choice
[20149.954275] Linux video capture interface: v2.00
[20149.964580] em28xx v4l2 driver version 0.1.0 loaded
[20149.964632] em28xx new video device (eb1a:2860): interface 0, class
255
[20149.964640] em28xx Doesn't have usb audio class
[20149.964645] em28xx #0: Alternate settings: 8
[20149.964649] em28xx #0: Alternate setting 0, max size= 0
[20149.964653] em28xx #0: Alternate setting 1, max size= 0
[20149.964657] em28xx #0: Alternate setting 2, max size= 1448
[20149.964661] em28xx #0: Alternate setting 3, max size= 2048
[20149.964666] em28xx #0: Alternate setting 4, max size= 2304
[20149.964670] em28xx #0: Alternate setting 5, max size= 2580
[20149.964674] em28xx #0: Alternate setting 6, max size= 2892
[20149.964678] em28xx #0: Alternate setting 7, max size= 3072
[20149.964926] em28xx #0: chip ID is em2860
[20150.196540] em28xx #0: board has no eeprom
[20150.210897] em28xx #0: found i2c device @ 0x4a [saa7113h]
[20150.252142] em28xx #0: Your board has no unique USB ID.
[20150.252150] em28xx #0: A hint were successfully done, based on i2c
devicelist hash.
[20150.252155] em28xx #0: This method is not 100% failproof.
[20150.252160] em28xx #0: If the board were missdetected, please email
this log to:
[20150.252164] em28xx #0:       V4L Mailing List 
<[email protected]>
[20150.252170] em28xx #0: Board detected as PointNix Intra-Oral Camera
[20150.252175] em28xx #0: Registering snapshot button...
[20150.252411] input: em28xx snapshot button as
/devices/pci0000:00/0000:00:1d.7/usb1/1-6/input/input6
[20150.643094] saa7115' 4-0025: saa7113 found (1f7113d0e100000) @ 0x4a
(em28xx #0)
[20151.920343] em28xx #0: V4L2 device registered as /dev/video0 and
/dev/vbi0
[20151.920351] em28xx #0: Found PointNix Intra-Oral Camera
[20151.920395] usbcore: registered new interface driver em28xx
[20151.927004] em28xx-audio.c: probing for em28x1 non standard usbaudio
[20151.927009] em28xx-audio.c: Copyright (C) 2006 Markus Rechberger
[20151.927534] Em28xx: Initialized (Em28xx Audio Extension) extension

Notice how it only generates /dev/video0 and /dev/vbi0. I would have expected to see two additional devices, like /dev/video1 and /dev/vbi1.

Maybe the detected Intra-Oral camera doesn't have that input, but the KWorld VS-USB2008D does. What can be done to make the driver recognize the Composite input correctly?

Thanks for any help...

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  Kay Wrobel
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Does anyone know of any similar hardware to the KWorld VS-USB2800D that has built in support from Ubuntu 9.04/9.10?

Many thanks in advance,

Chris

Quoted 8 lines · chris snow

Does anyone know of any similar hardware to the KWorld VS-USB2800D that has
built in support from Ubuntu 9.04/9.10?

Many thanks in advance,

Chris

The KWorld 2800D works in 9.10 out-of-the-box (the support was merged in 2.6.31).

Cheers,

Devin

Signature · 7 lines

Devin J. Heitmueller - Kernel Labs
http://www.kernellabs.com

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Is this hardware any good? There is a lot of 1 star reviews on amazon.co.uk, but I'm not sure if it's user error rather than the hardware....

Many thanks,

Chris

Quoted 8 lines · chris snow

Is this hardware any good? There is a lot of 1 star reviews on amazon.co.uk,
but I'm not sure if it's user error rather than the hardware....

Many thanks,

Chris

It's not a bad piece of hardware in terms of capture quality. Bear in mind that it only has S-Video and composite inputs - it does not have a tuner. Also, the audio feed comes through the external cable, so you need to hook that to the line-in on your soundcard. It also doesn't have an IR receiver or blaster, so not well suited for controlling a cable box.

One more warning: they just released a new version of the product which uses a different chip. As a result, if you haven't bought it yet you might end up with the new version, which *is* supported in the latest v4l-dvb tree, but that support was introduced after Ubuntu 9.10 took the kernel.

In other words, it's all about what you intend to do with the product.

Devin

Signature · 7 lines

Devin J. Heitmueller - Kernel Labs
http://www.kernellabs.com

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