Difference between revisions of "Ion Video 2 PC"

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m (Added a link to the full mailing list discussion instead)
m (Oops)
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* [http://www.heyrick.co.uk/blog/files/datasheets/5150am1.pdf TVP5150AM1 Data Manual]
 
* [http://www.heyrick.co.uk/blog/files/datasheets/5150am1.pdf TVP5150AM1 Data Manual]
 
* [http://noterepeat.com/products/ion/vcrs-and-video-conversion/46-ion-audio-video-2-pc-and-vcr-2-pc-frequently-asked-questions Ion Video 2 PC FAQ]
 
* [http://noterepeat.com/products/ion/vcrs-and-video-conversion/46-ion-audio-video-2-pc-and-vcr-2-pc-frequently-asked-questions Ion Video 2 PC FAQ]
* https://www.mail-archive.com/linux-media@vger.kernel.org/msg41443.html Mailing list post about the Raygo USB Video Recorder]
+
* [https://www.mail-archive.com/linux-media@vger.kernel.org/msg41443.html Mailing list post about the Raygo USB Video Recorder]
 
[[Category:Analog USB Devices]]
 
[[Category:Analog USB Devices]]

Revision as of 07:48, 25 February 2017

Ion Video 2 PC

This device is currently not supported under Linux. It is not even detected if the kernel is not patched. Once the kernel is patched, it is possible to get sound and video may be captured from a progressive video signal (interlaced signals don't work).

It shares the same device id (eb1a:5051) with the StarTech svid2usb23 and the Raygo R12-41373, which suffer from the same problem.

There are two versions of this device. The "Ion Video 2 PC" and the "Ion Video 2 PC MKII". The first is an older model and in contrast with the newer model, the older does not support Windows 7 or Mac.

The original model of the Ion Video 2 PC used a TVMaster TM6010L chip. It is said that it's possible to make it work by modifying the tm6000 driver so that it is recognized as a generic TM6010 card.

The newer model is the one that's dealt with in this article. The difference between both can be made by looking at the label under the device to see if it says "MKII".

Overview/Features

  • It has composite video and audio. It also has a S-Video input.

Components Used

  • Empia EM2860 (EM2861 in the instruction booklet) (USB video bridge)
  • Empia EMP202 (Audio chip recognized as AC'97)
  • Texas Instruments TVP5150AM1 (Video decoder)

Other Images

Kernel Output

Output of dmesg when the kernel is unpatched.

Ion Video 2 PC

usb 1-8: new high-speed USB device number 14 using xhci_hcd
usb 1-8: New USB device found, idVendor=eb1a, idProduct=5051
usb 1-8: New USB device strings: Mfr=3, Product=1, SerialNumber=2
usb 1-8: Product: ION Audio USB 2861 Device
usb 1-8: Manufacturer: ION Audio
usb 1-8: SerialNumber: 0

StarTech svid2usb23

usb 1-8: USB disconnect, device number 9
usb 1-8: new high-speed USB device number 10 using xhci_hcd
usb 1-8: New USB device found, idVendor=eb1a, idProduct=5051
usb 1-8: New USB device strings: Mfr=0, Product=1, SerialNumber=2
usb 1-8: Product: USB 2861 Device
usb 1-8: SerialNumber: 0

Output of dmesg with a kernel patched to detect the device (Ion Video 2 PC). Sometimes the audio chip is not detected correctly and it will print "Unknown AC97 audio processor detected!".

usb 1-7: new high-speed USB device number 14 using xhci_hcd
usb 1-7: New USB device found, idVendor=eb1a, idProduct=5051
usb 1-7: New USB device strings: Mfr=3, Product=1, SerialNumber=2
usb 1-7: Product: ION Audio USB 2861 Device
usb 1-7: Manufacturer: ION Audio
usb 1-7: SerialNumber: 0
em28xx: New device ION Audio ION Audio USB 2861 Device @ 480 Mbps (eb1a:5051, interface 0, class 0)
em28xx: Video interface 0 found: isoc
em28xx: chip ID is em2860
em2860 #0: EEPROM ID = 1a eb 67 95, EEPROM hash = 0x1f815671
em2860 #0: EEPROM info:
em2860 #0: 	AC97 audio (5 sample rates)
em2860 #0: 	500mA max power
em2860 #0: 	Table at offset 0x27, strings=0x3482, 0x046a, 0x146e
em2860 #0: Identified as EM2860/TVP5150 Reference Design (card=29)
em2860 #0: analog set to isoc mode.
usbcore: registered new interface driver em28xx
em2860 #0: Registering V4L2 extension
tvp5150 12-005c: tvp5150 (4.0) chip found @ 0xb8 (em2860 #0)
tvp5150 12-005c: tvp5150am1 detected.
em2860 #0: Config register raw data: 0x50
em2860 #0: AC97 vendor ID = 0x83847650
em2860 #0: AC97 features = 0x6a90
em2860 #0: Empia 202 AC97 audio processor detected
em2860 #0: V4L2 video device registered as video0
em2860 #0: V4L2 VBI device registered as vbi0
em2860 #0: V4L2 extension successfully initialized
em28xx: Registered (Em28xx v4l2 Extension) extension

Identification

Output of lsusb -d eb1a:5051. For the StarTech svid2sub23, the variable iManufacturer has the value 0.

Bus 001 Device 008: ID eb1a:5051 eMPIA Technology, Inc. 
Device Descriptor:
 bLength                18
 bDescriptorType         1
 bcdUSB               2.00
 bDeviceClass            0 (Defined at Interface level)
 bDeviceSubClass         0 
 bDeviceProtocol         0 
 bMaxPacketSize0        64
 idVendor           0xeb1a eMPIA Technology, Inc.
 idProduct          0x5051 
 bcdDevice            1.00
 iManufacturer           3 
 iProduct                1 
 iSerial                 2 
 bNumConfigurations      1
 Configuration Descriptor:
   bLength                 9
   bDescriptorType         2
   wTotalLength          555
   bNumInterfaces          3
   bConfigurationValue     1
   iConfiguration          0 
   bmAttributes         0x80
     (Bus Powered)
   MaxPower              500mA
   Interface Descriptor:
     bLength                 9
     bDescriptorType         4
     bInterfaceNumber        0
     bAlternateSetting       0
     bNumEndpoints           3
     bInterfaceClass       255 Vendor Specific Class
     bInterfaceSubClass      0 
     bInterfaceProtocol    255 
     iInterface              0 
     Endpoint Descriptor:
       bLength                 7
       bDescriptorType         5
       bEndpointAddress     0x81  EP 1 IN
       bmAttributes            3
         Transfer Type            Interrupt
         Synch Type               None
         Usage Type               Data
       wMaxPacketSize     0x0001  1x 1 bytes
       bInterval              11
     Endpoint Descriptor:
       bLength                 7
       bDescriptorType         5
       bEndpointAddress     0x82  EP 2 IN
       bmAttributes            1
         Transfer Type            Isochronous
         Synch Type               None
         Usage Type               Data
       wMaxPacketSize     0x0000  1x 0 bytes
       bInterval               1
     Endpoint Descriptor:
       bLength                 7
       bDescriptorType         5
       bEndpointAddress     0x84  EP 4 IN
       bmAttributes            1
         Transfer Type            Isochronous
         Synch Type               None
         Usage Type               Data
       wMaxPacketSize     0x0000  1x 0 bytes
       bInterval               1
   Interface Descriptor:
     bLength                 9
     bDescriptorType         4
     bInterfaceNumber        0
     bAlternateSetting       1
     bNumEndpoints           3
     bInterfaceClass       255 Vendor Specific Class
     bInterfaceSubClass      0 
     bInterfaceProtocol    255 
     iInterface              0 
     Endpoint Descriptor:
       bLength                 7
       bDescriptorType         5
       bEndpointAddress     0x81  EP 1 IN
       bmAttributes            3
         Transfer Type            Interrupt
         Synch Type               None
         Usage Type               Data
       wMaxPacketSize     0x0001  1x 1 bytes
       bInterval              11
     Endpoint Descriptor:
       bLength                 7
       bDescriptorType         5
       bEndpointAddress     0x82  EP 2 IN
       bmAttributes            1
         Transfer Type            Isochronous
         Synch Type               None
         Usage Type               Data
       wMaxPacketSize     0x0000  1x 0 bytes
       bInterval               1
     Endpoint Descriptor:
       bLength                 7
       bDescriptorType         5
       bEndpointAddress     0x84  EP 4 IN
       bmAttributes            1
         Transfer Type            Isochronous
         Synch Type               None
         Usage Type               Data
       wMaxPacketSize     0x0000  1x 0 bytes
       bInterval               1
   Interface Descriptor:
     bLength                 9
     bDescriptorType         4
     bInterfaceNumber        0
     bAlternateSetting       2
     bNumEndpoints           3
     bInterfaceClass       255 Vendor Specific Class
     bInterfaceSubClass      0 
     bInterfaceProtocol    255 
     iInterface              0 
     Endpoint Descriptor:
       bLength                 7
       bDescriptorType         5
       bEndpointAddress     0x81  EP 1 IN
       bmAttributes            3
         Transfer Type            Interrupt
         Synch Type               None
         Usage Type               Data
       wMaxPacketSize     0x0001  1x 1 bytes
       bInterval              11
     Endpoint Descriptor:
       bLength                 7
       bDescriptorType         5
       bEndpointAddress     0x82  EP 2 IN
       bmAttributes            1
         Transfer Type            Isochronous
         Synch Type               None
         Usage Type               Data
       wMaxPacketSize     0x0ad4  2x 724 bytes
       bInterval               1
     Endpoint Descriptor:
       bLength                 7
       bDescriptorType         5
       bEndpointAddress     0x84  EP 4 IN
       bmAttributes            1
         Transfer Type            Isochronous
         Synch Type               None
         Usage Type               Data
       wMaxPacketSize     0x0000  1x 0 bytes
       bInterval               1
   Interface Descriptor:
     bLength                 9
     bDescriptorType         4
     bInterfaceNumber        0
     bAlternateSetting       3
     bNumEndpoints           3
     bInterfaceClass       255 Vendor Specific Class
     bInterfaceSubClass      0 
     bInterfaceProtocol    255 
     iInterface              0 
     Endpoint Descriptor:
       bLength                 7
       bDescriptorType         5
       bEndpointAddress     0x81  EP 1 IN
       bmAttributes            3
         Transfer Type            Interrupt
         Synch Type               None
         Usage Type               Data
       wMaxPacketSize     0x0001  1x 1 bytes
       bInterval              11
     Endpoint Descriptor:
       bLength                 7
       bDescriptorType         5
       bEndpointAddress     0x82  EP 2 IN
       bmAttributes            1
         Transfer Type            Isochronous
         Synch Type               None
         Usage Type               Data
       wMaxPacketSize     0x0c00  2x 1024 bytes
       bInterval               1
     Endpoint Descriptor:
       bLength                 7
       bDescriptorType         5
       bEndpointAddress     0x84  EP 4 IN
       bmAttributes            1
         Transfer Type            Isochronous
         Synch Type               None
         Usage Type               Data
       wMaxPacketSize     0x0000  1x 0 bytes
       bInterval               1
   Interface Descriptor:
     bLength                 9
     bDescriptorType         4
     bInterfaceNumber        0
     bAlternateSetting       4
     bNumEndpoints           3
     bInterfaceClass       255 Vendor Specific Class
     bInterfaceSubClass      0 
     bInterfaceProtocol    255 
     iInterface              0 
     Endpoint Descriptor:
       bLength                 7
       bDescriptorType         5
       bEndpointAddress     0x81  EP 1 IN
       bmAttributes            3
         Transfer Type            Interrupt
         Synch Type               None
         Usage Type               Data
       wMaxPacketSize     0x0001  1x 1 bytes
       bInterval              11
     Endpoint Descriptor:
       bLength                 7
       bDescriptorType         5
       bEndpointAddress     0x82  EP 2 IN
       bmAttributes            1
         Transfer Type            Isochronous
         Synch Type               None
         Usage Type               Data
       wMaxPacketSize     0x1300  3x 768 bytes
       bInterval               1
     Endpoint Descriptor:
       bLength                 7
       bDescriptorType         5
       bEndpointAddress     0x84  EP 4 IN
       bmAttributes            1
         Transfer Type            Isochronous
         Synch Type               None
         Usage Type               Data
       wMaxPacketSize     0x0000  1x 0 bytes
       bInterval               1
   Interface Descriptor:
     bLength                 9
     bDescriptorType         4
     bInterfaceNumber        0
     bAlternateSetting       5
     bNumEndpoints           3
     bInterfaceClass       255 Vendor Specific Class
     bInterfaceSubClass      0 
     bInterfaceProtocol    255 
     iInterface              0 
     Endpoint Descriptor:
       bLength                 7
       bDescriptorType         5
       bEndpointAddress     0x81  EP 1 IN
       bmAttributes            3
         Transfer Type            Interrupt
         Synch Type               None
         Usage Type               Data
       wMaxPacketSize     0x0001  1x 1 bytes
       bInterval              11
     Endpoint Descriptor:
       bLength                 7
       bDescriptorType         5
       bEndpointAddress     0x82  EP 2 IN
       bmAttributes            1
         Transfer Type            Isochronous
         Synch Type               None
         Usage Type               Data
       wMaxPacketSize     0x135c  3x 860 bytes
       bInterval               1
     Endpoint Descriptor:
       bLength                 7
       bDescriptorType         5
       bEndpointAddress     0x84  EP 4 IN
       bmAttributes            1
         Transfer Type            Isochronous
         Synch Type               None
         Usage Type               Data
       wMaxPacketSize     0x0000  1x 0 bytes
       bInterval               1
   Interface Descriptor:
     bLength                 9
     bDescriptorType         4
     bInterfaceNumber        0
     bAlternateSetting       6
     bNumEndpoints           3
     bInterfaceClass       255 Vendor Specific Class
     bInterfaceSubClass      0 
     bInterfaceProtocol    255 
     iInterface              0 
     Endpoint Descriptor:
       bLength                 7
       bDescriptorType         5
       bEndpointAddress     0x81  EP 1 IN
       bmAttributes            3
         Transfer Type            Interrupt
         Synch Type               None
         Usage Type               Data
       wMaxPacketSize     0x0001  1x 1 bytes
       bInterval              11
     Endpoint Descriptor:
       bLength                 7
       bDescriptorType         5
       bEndpointAddress     0x82  EP 2 IN
       bmAttributes            1
         Transfer Type            Isochronous
         Synch Type               None
         Usage Type               Data
       wMaxPacketSize     0x13c4  3x 964 bytes
       bInterval               1
     Endpoint Descriptor:
       bLength                 7
       bDescriptorType         5
       bEndpointAddress     0x84  EP 4 IN
       bmAttributes            1
         Transfer Type            Isochronous
         Synch Type               None
         Usage Type               Data
       wMaxPacketSize     0x0000  1x 0 bytes
       bInterval               1
   Interface Descriptor:
     bLength                 9
     bDescriptorType         4
     bInterfaceNumber        0
     bAlternateSetting       7
     bNumEndpoints           3
     bInterfaceClass       255 Vendor Specific Class
     bInterfaceSubClass      0 
     bInterfaceProtocol    255 
     iInterface              0 
     Endpoint Descriptor:
       bLength                 7
       bDescriptorType         5
       bEndpointAddress     0x81  EP 1 IN
       bmAttributes            3
         Transfer Type            Interrupt
         Synch Type               None
         Usage Type               Data
       wMaxPacketSize     0x0001  1x 1 bytes
       bInterval              11
     Endpoint Descriptor:
       bLength                 7
       bDescriptorType         5
       bEndpointAddress     0x82  EP 2 IN
       bmAttributes            1
         Transfer Type            Isochronous
         Synch Type               None
         Usage Type               Data
       wMaxPacketSize     0x1400  3x 1024 bytes
       bInterval               1
     Endpoint Descriptor:
       bLength                 7
       bDescriptorType         5
       bEndpointAddress     0x84  EP 4 IN
       bmAttributes            1
         Transfer Type            Isochronous
         Synch Type               None
         Usage Type               Data
       wMaxPacketSize     0x0000  1x 0 bytes
       bInterval               1
   Interface Descriptor:
     bLength                 9
     bDescriptorType         4
     bInterfaceNumber        1
     bAlternateSetting       0
     bNumEndpoints           0
     bInterfaceClass         1 Audio
     bInterfaceSubClass      1 Control Device
     bInterfaceProtocol      0 
     iInterface              0 
     AudioControl Interface Descriptor:
       bLength                 9
       bDescriptorType        36
       bDescriptorSubtype      1 (HEADER)
       bcdADC               1.00
       wTotalLength           39
       bInCollection           1
       baInterfaceNr( 0)       2
     AudioControl Interface Descriptor:
       bLength                12
       bDescriptorType        36
       bDescriptorSubtype      2 (INPUT_TERMINAL)
       bTerminalID             1
       wTerminalType      0x0603 Line Connector
       bAssocTerminal          0
       bNrChannels             2
       wChannelConfig     0x0003
         Left Front (L)
         Right Front (R)
       iChannelNames           0 
       iTerminal               0 
     AudioControl Interface Descriptor:
       bLength                 9
       bDescriptorType        36
       bDescriptorSubtype      6 (FEATURE_UNIT)
       bUnitID                 2
       bSourceID               1
       bControlSize            1
       bmaControls( 0)      0x03
         Mute Control
         Volume Control
       bmaControls( 1)      0x00
       iFeature                0 
     AudioControl Interface Descriptor:
       bLength                 9
       bDescriptorType        36
       bDescriptorSubtype      3 (OUTPUT_TERMINAL)
       bTerminalID             3
       wTerminalType      0x0101 USB Streaming
       bAssocTerminal          0
       bSourceID               2
       iTerminal               0 
   Interface Descriptor:
     bLength                 9
     bDescriptorType         4
     bInterfaceNumber        2
     bAlternateSetting       0
     bNumEndpoints           1
     bInterfaceClass         1 Audio
     bInterfaceSubClass      2 Streaming
     bInterfaceProtocol      0 
     iInterface              0 
     AudioStreaming Interface Descriptor:
       bLength                 7
       bDescriptorType        36
       bDescriptorSubtype      1 (AS_GENERAL)
       bTerminalLink           3
       bDelay                  1 frames
       wFormatTag              1 PCM
     AudioStreaming Interface Descriptor:
       bLength                11
       bDescriptorType        36
       bDescriptorSubtype      2 (FORMAT_TYPE)
       bFormatType             1 (FORMAT_TYPE_I)
       bNrChannels             2
       bSubframeSize           2
       bBitResolution         16
       bSamFreqType            1 Discrete
       tSamFreq[ 0]            0
     Endpoint Descriptor:
       bLength                 9
       bDescriptorType         5
       bEndpointAddress     0x83  EP 3 IN
       bmAttributes            1
         Transfer Type            Isochronous
         Synch Type               None
         Usage Type               Data
       wMaxPacketSize     0x0000  1x 0 bytes
       bInterval               4
       bRefresh                0
       bSynchAddress           0
       AudioControl Endpoint Descriptor:
         bLength                 7
         bDescriptorType        37
         bDescriptorSubtype      1 (EP_GENERAL)
         bmAttributes         0x00
         bLockDelayUnits         0 Undefined
         wLockDelay              0 Undefined
   Interface Descriptor:
     bLength                 9
     bDescriptorType         4
     bInterfaceNumber        2
     bAlternateSetting       1
     bNumEndpoints           1
     bInterfaceClass         1 Audio
     bInterfaceSubClass      2 Streaming
     bInterfaceProtocol      0 
     iInterface              0 
     AudioStreaming Interface Descriptor:
       bLength                 7
       bDescriptorType        36
       bDescriptorSubtype      1 (AS_GENERAL)
       bTerminalLink           3
       bDelay                  1 frames
       wFormatTag              1 PCM
     AudioStreaming Interface Descriptor:
       bLength                11
       bDescriptorType        36
       bDescriptorSubtype      2 (FORMAT_TYPE)
       bFormatType             1 (FORMAT_TYPE_I)
       bNrChannels             2
       bSubframeSize           2
       bBitResolution         16
       bSamFreqType            1 Discrete
       tSamFreq[ 0]        48000
     Endpoint Descriptor:
       bLength                 9
       bDescriptorType         5
       bEndpointAddress     0x83  EP 3 IN
       bmAttributes            1
         Transfer Type            Isochronous
         Synch Type               None
         Usage Type               Data
       wMaxPacketSize     0x00c4  1x 196 bytes
       bInterval               4
       bRefresh                0
       bSynchAddress           0
       AudioControl Endpoint Descriptor:
         bLength                 7
         bDescriptorType        37
         bDescriptorSubtype      1 (EP_GENERAL)
         bmAttributes         0x00
         bLockDelayUnits         0 Undefined
         wLockDelay              0 Undefined
   Interface Descriptor:
     bLength                 9
     bDescriptorType         4
     bInterfaceNumber        2
     bAlternateSetting       2
     bNumEndpoints           1
     bInterfaceClass         1 Audio
     bInterfaceSubClass      2 Streaming
     bInterfaceProtocol      0 
     iInterface              0 
     AudioStreaming Interface Descriptor:
       bLength                 7
       bDescriptorType        36
       bDescriptorSubtype      1 (AS_GENERAL)
       bTerminalLink           3
       bDelay                  1 frames
       wFormatTag              1 PCM
     AudioStreaming Interface Descriptor:
       bLength                11
       bDescriptorType        36
       bDescriptorSubtype      2 (FORMAT_TYPE)
       bFormatType             1 (FORMAT_TYPE_I)
       bNrChannels             2
       bSubframeSize           2
       bBitResolution         16
       bSamFreqType            1 Discrete
       tSamFreq[ 0]        44100
     Endpoint Descriptor:
       bLength                 9
       bDescriptorType         5
       bEndpointAddress     0x83  EP 3 IN
       bmAttributes            1
         Transfer Type            Isochronous
         Synch Type               None
         Usage Type               Data
       wMaxPacketSize     0x00b4  1x 180 bytes
       bInterval               4
       bRefresh                0
       bSynchAddress           0
       AudioControl Endpoint Descriptor:
         bLength                 7
         bDescriptorType        37
         bDescriptorSubtype      1 (EP_GENERAL)
         bmAttributes         0x00
         bLockDelayUnits         0 Undefined
         wLockDelay              0 Undefined
   Interface Descriptor:
     bLength                 9
     bDescriptorType         4
     bInterfaceNumber        2
     bAlternateSetting       3
     bNumEndpoints           1
     bInterfaceClass         1 Audio
     bInterfaceSubClass      2 Streaming
     bInterfaceProtocol      0 
     iInterface              0 
     AudioStreaming Interface Descriptor:
       bLength                 7
       bDescriptorType        36
       bDescriptorSubtype      1 (AS_GENERAL)
       bTerminalLink           3
       bDelay                  1 frames
       wFormatTag              1 PCM
     AudioStreaming Interface Descriptor:
       bLength                11
       bDescriptorType        36
       bDescriptorSubtype      2 (FORMAT_TYPE)
       bFormatType             1 (FORMAT_TYPE_I)
       bNrChannels             2
       bSubframeSize           2
       bBitResolution         16
       bSamFreqType            1 Discrete
       tSamFreq[ 0]        32000
     Endpoint Descriptor:
       bLength                 9
       bDescriptorType         5
       bEndpointAddress     0x83  EP 3 IN
       bmAttributes            1
         Transfer Type            Isochronous
         Synch Type               None
         Usage Type               Data
       wMaxPacketSize     0x0084  1x 132 bytes
       bInterval               4
       bRefresh                0
       bSynchAddress           0
       AudioControl Endpoint Descriptor:
         bLength                 7
         bDescriptorType        37
         bDescriptorSubtype      1 (EP_GENERAL)
         bmAttributes         0x00
         bLockDelayUnits         0 Undefined
         wLockDelay              0 Undefined
   Interface Descriptor:
     bLength                 9
     bDescriptorType         4
     bInterfaceNumber        2
     bAlternateSetting       4
     bNumEndpoints           1
     bInterfaceClass         1 Audio
     bInterfaceSubClass      2 Streaming
     bInterfaceProtocol      0 
     iInterface              0 
     AudioStreaming Interface Descriptor:
       bLength                 7
       bDescriptorType        36
       bDescriptorSubtype      1 (AS_GENERAL)
       bTerminalLink           3
       bDelay                  1 frames
       wFormatTag              1 PCM
     AudioStreaming Interface Descriptor:
       bLength                11
       bDescriptorType        36
       bDescriptorSubtype      2 (FORMAT_TYPE)
       bFormatType             1 (FORMAT_TYPE_I)
       bNrChannels             2
       bSubframeSize           2
       bBitResolution         16
       bSamFreqType            1 Discrete
       tSamFreq[ 0]        16000
     Endpoint Descriptor:
       bLength                 9
       bDescriptorType         5
       bEndpointAddress     0x83  EP 3 IN
       bmAttributes            1
         Transfer Type            Isochronous
         Synch Type               None
         Usage Type               Data
       wMaxPacketSize     0x0044  1x 68 bytes
       bInterval               4
       bRefresh                0
       bSynchAddress           0
       AudioControl Endpoint Descriptor:
         bLength                 7
         bDescriptorType        37
         bDescriptorSubtype      1 (EP_GENERAL)
         bmAttributes         0x00
         bLockDelayUnits         0 Undefined
         wLockDelay              0 Undefined
   Interface Descriptor:
     bLength                 9
     bDescriptorType         4
     bInterfaceNumber        2
     bAlternateSetting       5
     bNumEndpoints           1
     bInterfaceClass         1 Audio
     bInterfaceSubClass      2 Streaming
     bInterfaceProtocol      0 
     iInterface              0 
     AudioStreaming Interface Descriptor:
       bLength                 7
       bDescriptorType        36
       bDescriptorSubtype      1 (AS_GENERAL)
       bTerminalLink           3
       bDelay                  1 frames
       wFormatTag              1 PCM
     AudioStreaming Interface Descriptor:
       bLength                11
       bDescriptorType        36
       bDescriptorSubtype      2 (FORMAT_TYPE)
       bFormatType             1 (FORMAT_TYPE_I)
       bNrChannels             2
       bSubframeSize           2
       bBitResolution         16
       bSamFreqType            1 Discrete
       tSamFreq[ 0]         8000
     Endpoint Descriptor:
       bLength                 9
       bDescriptorType         5
       bEndpointAddress     0x83  EP 3 IN
       bmAttributes            1
         Transfer Type            Isochronous
         Synch Type               None
         Usage Type               Data
       wMaxPacketSize     0x0024  1x 36 bytes
       bInterval               4
       bRefresh                0
       bSynchAddress           0
       AudioControl Endpoint Descriptor:
         bLength                 7
         bDescriptorType        37
         bDescriptorSubtype      1 (EP_GENERAL)
         bmAttributes         0x00
         bLockDelayUnits         0 Undefined
         wLockDelay              0 Undefined

Making it work

The kernel must be patched. The device id must be added to em28xx-cards.c.

{ USB_DEVICE(0xeb1a, 0x5051),
.driver_info = EM2860_BOARD_TVP5150_REFERENCE_DESIGN },

Once patched, the device will be detected and video software will be able to use it. If something is plugged into the device, it will stop sending video frames to the computer once it starts receiving video signal. This means that the user will only see the first frame which displays something, then it will remain frozen. If the devices stops receiving video input (i.e.: The video source is unplugged or turned off), then it will resume capturing frames. This makes the device useless for video recording.

If you experience this issue, your input may be a progressive signal (such as a video game consoles, which do not input in interlace mode). To fix this, open the file em28xx-video.c and seek for em28xx_v4l2_init. Edit the line that checks if the device is webcam, remove the if condition so that the driver will always be in progressive mode:

//if (dev->board.is_webcam)
    v4l2->progressive = true;

(WARNING: This is a hack and may break other devices that use the same driver)

Some people have been asking on mailing lists and forums about how to make it work. Once they had gone past the step of adding the id so that the device is recognized and had patched their module, they never confirmed if the device was working or not.

There is a Youtube video of the Ion Video 2 PC working dated from 2013: https://www.youtube.com/watch?v=30e-N5z51vU

However, in 2016, someone tried to make it work using the same procedure and it didn't: https://www.youtube.com/watch?v=z96OfgHGDao

Once the progressive hack is applied to the driver, it is able to receive video from the device: https://www.youtube.com/watch?v=WLlqJ7T3y4g. Notice that there's a huge green bar at the bottom of the screen. The upper part shows the video, but may be in grayscale or it may go through the whole range of different color hues.

The sound is not working correctly. If qv4l2 is executed from the terminal, when capturing from this device, it will repetitively print the following error messages in the terminal:

ALSA lib pcm.c:7843:(snd_pcm_recover) overrun occurred
ALSA lib pcm.c:7843:(snd_pcm_recover) underrun occurred

The sound will cut every seconds, before it recovers and cut again continuously, while printing these error messages again and again.

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