View source for SilverCrest USB 2.0 Video Grabber SVG 2.0 A2

A small USB Video signal analog to digital converter distributed from the German discounter chain "Lidl". Vendor: TARGA GmbH, Lange Wende 41, D-59494 Soest. Artikel Nr.: 73763. SVG 2.0 A2. TARGA-Nr.1743993. GTIN (former EAN) is 4250133706645. This device has no TV nor Radio receivers.

It is also sold as "LogiLink USB2.0 Video Grabber with Snap Shot" - Model VG0005B v.1.0 - GTIN(EAN) is 4052792002102.

<del>'''Whether it works under Linux, is still part of analysis.'''</del> '''see below for a patch'''

'''Take note: this is a new batch being sold by Lidl late 2012 called [[SilverCrest USB 2.0 Video Grabber SVG 2.0 A2]] and looks exactly similar as the [[SilverCrest USB 2.0 Video Grabber VG 2000]] and has the same packaging, but uses a different chipset ([[Conexant CX2310x|Conexant CX23103-11Z]]), identified as ID 1d19:6109 by Dexatek Technology Ltd.'''

[[Image:4250133701701-08-small.jpg|right|thumb|200px|TARGA / Lidl USB-Video-Grabber SVG 2.0 A2 top view (the square area is the snapshot push-bottom]]

==Overview/Features==
Features of the SilverCrest USB-Video-Grabber SVG 2.0 A2: 
* Digitalization of analogue video signals as VHS, Video8, Hi8 etc.
* Connects devices e.g. Camcorder, Video-Recorder and other analogue Video sources with Notebook or Personal Computer.
* Fast and easy to use for simple transmission to digital storage units.
* Interface: USB 2.0
* Input rating: 5 V DC, 300 mA
* Video inputs: Composite and S-Video
* Audio inputs: 2 x Cinch (Stereo)
* Video resolution: PAL / SECAM: 720 x 576 @ 25 FPS; NTSC: 720 x 480 @ 30 FPS
* Snapshot push-buttom

===Components Used===
* [[Conexant CX2310x|Conexant CX23103-11Z]] USB Audio/Video Decoder Including USB Interface

===Other Images===
Backside of the device and the audio-/video- connectors plugged in to the mini USB socket.
<gallery perrow=2>
 Image:4250133701701-11-small.jpg|type plate of the unit
 Image:4250133701701-16-small.jpg|device with plugged-in connectors
</gallery>

===Identification===
 # lsusb -v  -d 1d19:6109
 Bus 001 Device 002: ID 1d19:6109 Dexatek Technology Ltd.
 Device Descriptor:
   bLength                18
   bDescriptorType         1
   bcdUSB               2.00
   bDeviceClass          239 Miscellaneous Device
   bDeviceSubClass         2 ?
   bDeviceProtocol         1 Interface Association
   bMaxPacketSize0        64
   idVendor           0x1d19 Dexatek Technology Ltd.
   idProduct          0x6109
   bcdDevice           40.01
   iManufacturer           1
   iProduct                2
   iSerial                 3
   bNumConfigurations      1
   Configuration Descriptor:
     bLength                 9
     bDescriptorType         2
     wTotalLength          248
     bNumInterfaces          6
     bConfigurationValue     1
     iConfiguration          4
     bmAttributes         0x80
       (Bus Powered)
     MaxPower              500mA
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        0
       bAlternateSetting       0
       bNumEndpoints           2
       bInterfaceClass       255 Vendor Specific Class
       bInterfaceSubClass    255 Vendor Specific Subclass
       bInterfaceProtocol    255 Vendor Specific Protocol
       iInterface             32
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x8e  EP 14 IN
         bmAttributes            3
           Transfer Type            Interrupt
           Synch Type               None
           Usage Type               Data
         wMaxPacketSize     0x0020  1x 32 bytes
         bInterval               4
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x0e  EP 14 OUT
         bmAttributes            3
           Transfer Type            Interrupt
           Synch Type               None
           Usage Type               Data
         wMaxPacketSize     0x0020  1x 32 bytes
         bInterval               4
     Interface Association:
       bLength                 8
       bDescriptorType        11
       bFirstInterface         1
       bInterfaceCount         5
       bFunctionClass        255 Vendor Specific Class
       bFunctionSubClass     255 Vendor Specific Subclass
       bFunctionProtocol     255 Vendor Specific Protocol
       iFunction               0
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        1
       bAlternateSetting       0
       bNumEndpoints           1
       bInterfaceClass       255 Vendor Specific Class
       bInterfaceSubClass    255 Vendor Specific Subclass
       bInterfaceProtocol    255 Vendor Specific Protocol
       iInterface              7
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x8f  EP 15 IN
         bmAttributes            3
           Transfer Type            Interrupt
           Synch Type               None
           Usage Type               Data
         wMaxPacketSize     0x0008  1x 8 bytes
         bInterval               7
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        2
       bAlternateSetting       0
       bNumEndpoints           1
       bInterfaceClass       255 Vendor Specific Class
       bInterfaceSubClass    255 Vendor Specific Subclass
       bInterfaceProtocol    255 Vendor Specific Protocol
       iInterface             20
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x83  EP 3 IN
         bmAttributes            2
           Transfer Type            Bulk
           Synch Type               None
           Usage Type               Data
         wMaxPacketSize     0x0200  1x 512 bytes
         bInterval               0
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        2
       bAlternateSetting       1
       bNumEndpoints           1
       bInterfaceClass       255 Vendor Specific Class
       bInterfaceSubClass    255 Vendor Specific Subclass
       bInterfaceProtocol    255 Vendor Specific Protocol
       iInterface             21
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x83  EP 3 IN
         bmAttributes            5
           Transfer Type            Isochronous
           Synch Type               Asynchronous
           Usage Type               Data
         wMaxPacketSize     0x001c  1x 28 bytes
         bInterval               1
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        2
       bAlternateSetting       2
       bNumEndpoints           1
       bInterfaceClass       255 Vendor Specific Class
       bInterfaceSubClass    255 Vendor Specific Subclass
       bInterfaceProtocol    255 Vendor Specific Protocol
       iInterface             22
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x83  EP 3 IN
         bmAttributes            5
           Transfer Type            Isochronous
           Synch Type               Asynchronous
           Usage Type               Data
         wMaxPacketSize     0x0034  1x 52 bytes
         bInterval               1
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        3
       bAlternateSetting       0
       bNumEndpoints           1
       bInterfaceClass       255 Vendor Specific Class
       bInterfaceSubClass    255 Vendor Specific Subclass
       bInterfaceProtocol    255 Vendor Specific Protocol
       iInterface             23
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x84  EP 4 IN
         bmAttributes            2
           Transfer Type            Bulk
           Synch Type               None
           Usage Type               Data
         wMaxPacketSize     0x0200  1x 512 bytes
         bInterval               0
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        3
       bAlternateSetting       1
       bNumEndpoints           1
       bInterfaceClass       255 Vendor Specific Class
       bInterfaceSubClass    255 Vendor Specific Subclass
       bInterfaceProtocol    255 Vendor Specific Protocol
       iInterface             24
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x84  EP 4 IN
         bmAttributes            5
           Transfer Type            Isochronous
           Synch Type               Asynchronous
           Usage Type               Data
         wMaxPacketSize     0x00b8  1x 184 bytes
         bInterval               1
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        3
       bAlternateSetting       2
       bNumEndpoints           1
       bInterfaceClass       255 Vendor Specific Class
       bInterfaceSubClass    255 Vendor Specific Subclass
       bInterfaceProtocol    255 Vendor Specific Protocol
       iInterface             25
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x84  EP 4 IN
         bmAttributes            5
           Transfer Type            Isochronous
           Synch Type               Asynchronous
           Usage Type               Data
         wMaxPacketSize     0x02d8  1x 728 bytes
         bInterval               1
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        3
       bAlternateSetting       3
       bNumEndpoints           1
       bInterfaceClass       255 Vendor Specific Class
       bInterfaceSubClass    255 Vendor Specific Subclass
       bInterfaceProtocol    255 Vendor Specific Protocol
       iInterface             26
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x84  EP 4 IN
         bmAttributes            5
           Transfer Type            Isochronous
           Synch Type               Asynchronous
           Usage Type               Data
         wMaxPacketSize     0x13c4  3x 964 bytes
         bInterval               1
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        3
       bAlternateSetting       4
       bNumEndpoints           1
       bInterfaceClass       255 Vendor Specific Class
       bInterfaceSubClass    255 Vendor Specific Subclass
       bInterfaceProtocol    255 Vendor Specific Protocol
       iInterface             27
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x84  EP 4 IN
         bmAttributes            5
           Transfer Type            Isochronous
           Synch Type               Asynchronous
           Usage Type               Data
         wMaxPacketSize     0x0b84  2x 900 bytes
         bInterval               1
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        4
       bAlternateSetting       0
       bNumEndpoints           1
       bInterfaceClass       255 Vendor Specific Class
       bInterfaceSubClass    255 Vendor Specific Subclass
       bInterfaceProtocol    255 Vendor Specific Protocol
       iInterface             28
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x85  EP 5 IN
         bmAttributes            2
           Transfer Type            Bulk
           Synch Type               None
           Usage Type               Data
         wMaxPacketSize     0x0200  1x 512 bytes
         bInterval               0
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        4
       bAlternateSetting       1
       bNumEndpoints           1
       bInterfaceClass       255 Vendor Specific Class
       bInterfaceSubClass    255 Vendor Specific Subclass
       bInterfaceProtocol    255 Vendor Specific Protocol
       iInterface             31
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x05  EP 5 OUT
         bmAttributes            2
           Transfer Type            Bulk
           Synch Type               None
           Usage Type               Data
         wMaxPacketSize     0x0200  1x 512 bytes
         bInterval               1
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        5
       bAlternateSetting       0
       bNumEndpoints           1
       bInterfaceClass       255 Vendor Specific Class
       bInterfaceSubClass    255 Vendor Specific Subclass
       bInterfaceProtocol    255 Vendor Specific Protocol
       iInterface             29
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x86  EP 6 IN
         bmAttributes            2
           Transfer Type            Bulk
           Synch Type               None
           Usage Type               Data
         wMaxPacketSize     0x0200  1x 512 bytes
         bInterval               0
     Interface Descriptor:
       bLength                 9
       bDescriptorType         4
       bInterfaceNumber        5
       bAlternateSetting       1
       bNumEndpoints           1
       bInterfaceClass       255 Vendor Specific Class
       bInterfaceSubClass    255 Vendor Specific Subclass
       bInterfaceProtocol    255 Vendor Specific Protocol
       iInterface             30
       Endpoint Descriptor:
         bLength                 7
         bDescriptorType         5
         bEndpointAddress     0x86  EP 6 IN
         bmAttributes            5
           Transfer Type            Isochronous
           Synch Type               Asynchronous
           Usage Type               Data
         wMaxPacketSize     0x0240  1x 576 bytes
        bInterval               1

==Making it Work==
Expecting [[Conexant CX2310x]] to work, but this is still under investigation.

===Firmware===
The unit does not use an loadable firmware. 

===Drivers===
See [[Conexant CX2310x]].

=== Patch to get the cx231xx driver working ===

In the file, depending on the kernel version, ''drivers/media/video/cx231xx/cx231xx-cards.c'' or ''drivers/media/usb/cx231xx/cx231xx-cards.c'' go to struct usb_device_id cx231xx_id_table[] and add these two lines e.g. at the beginning of the definition:

<pre>
    {USB_DEVICE(0x1D19, 0x6109),
    .driver_info = CX231XX_BOARD_PV_XCAPTURE_USB},
</pre>

Here is a [http://streibelt.de/blog/2013/06/23/kernel-patch-for-cx23103-video-grabber-linux-support/ proof that it is working].

===Test System===
The device is connected to a multicore AMD A6-3500 system.
 > uname -a
 Linux media-center 3.5.0-27-generic #46-Ubuntu SMP Mon Mar 25 19:58:17 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

===Kernel Output===
The Kernel loads the newly provided drivers<br>
 > dmesg
 [11196.213937] usb 1-4: new high-speed USB device number 2 using ehci_hcd
 [11196.349182] usb 1-4: New USB device found, idVendor=1d19, idProduct=6109
 [11196.349195] usb 1-4: New USB device strings: Mfr=1, Product=2, SerialNumber=3
 [11196.349202] usb 1-4: Product: Video Grabber
 [11196.349208] usb 1-4: Manufacturer: DK
 [11196.349213] usb 1-4: SerialNumber: 0000000000

However, seeing this does not mean that the device is fully initialised.<br>
Such lines must also be present:
 > dmesg
 [  368.813889] cx231xx #0: New device DK Video Grabber @ 480 Mbps (1d19:6109) with 5 interfaces
 [  368.813895] cx231xx #0: registering interface 1
 [  368.814069] cx231xx #0: Identified as Pixelview Xcapture USB (card=11)
 [  368.900034] cx231xx #0: cx231xx_dif_set_standard: setStandard to ffffffff
 [  368.911152] cx25840 7-0044: cx23102 A/V decoder found @ 0x88 (cx231xx #0)
 [  368.929235] cx25840 7-0044:  Firmware download size changed to 16 bytes max length

Only then is the device fully functional.

===Kernel Modules===
To get the difference the lsmod was logged before and after plugging in the device, then the "diff" command creates the output.
 
<pre>
> cx231xx_alsa           17905  0 
> cx25840               102646  1 
> cx231xx               168502  1 cx231xx_alsa
> videobuf_vmalloc       13560  1 cx231xx
> cx2341x                28283  1 cx231xx
> rc_core                26426  1 cx231xx
> v4l2_common            21295  3 cx2341x,cx231xx,cx25840
> videobuf_core          25993  2 cx231xx,videobuf_vmalloc
19c27
< snd_pcm                97451  2 snd_hda_codec,snd_hda_intel
---
> snd_pcm                97451  3 cx231xx_alsa,snd_hda_codec,snd_hda_intel
38c46
< snd                    68876  11 snd_hda_codec_realtek,snd_hwdep,snd_timer,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec,snd_hda_intel,snd_seq_device
---
> snd                    68876  12 snd_hda_codec_realtek,cx231xx_alsa,snd_hwdep,snd_timer,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec,snd_hda_intel,snd_seq_device
42c50
< videodev              129260  2 uvcvideo,videobuf2_core
---
> videodev              129260  6 cx2341x,cx231xx,cx25840,uvcvideo,v4l2_common,videobuf2_core
</pre>

===Remote Control Support===
There is no remote control.

===Snapshot Control Support===
The housing is equipped with an push bottom to initiate a video snapshot. Operating of this shows no effect in VLC application nor /var/log/messages.

===Verifying full functionality===
These devices '''must be created''' by the driver in order for this device to work successfully:<br>
* '''Cx231xx Audio Analog Stereo''' ''- used for audio input''
* '''cx231xx #0 vbi''' ''- used by v4l''
* '''cx231xx #0 video''' ''- used by v4l''
The cx231xx driver, when properly patched and compiled, works obviously also with this hardware.

The absence of this devices means that the full functionality is not available.

Capturing video and audio works on linux (''at least tested with Ubuntu 12.04. and with kernel 3.5.0.45 with applied above patch''. Skype video and Audacity audio capture worked, when tested. Hence, it would safely work with later kernels, if the patch would be preconfigured. The cx231xx driver states in the source comments, that itself is copyright 2008, so some older kernels work probably as well, if the module is patched and compiled properly).

==External Links==
<br>
* [http://www.conexant.com/Product/video/vd/CX23103/Pages/default.aspx] Manufacturer of CX23103 chip
* [http://www.service.targa.co.uk] Vendor
* [http://www.lidl.de] Distributor
<br>
[[Category:Analog USB Devices]]
[[Category:Capture Devices]]