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Thread: EzCap ATSC

  1. #1
    Join Date
    Sep 2012
    Beans
    3

    EzCap ATSC

    I have bought this USB dongle from eBay. Labeled as EzCap ATSC. It shows up as e1ba:2875 eMPIA Technology

    lsusb -v

    Code:
    Bus 001 Device 002: ID eb1a:2875 eMPIA Technology, Inc. 
    Couldn't open device, some information will be missing
    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          0x2875 
      bcdDevice            1.00
      iManufacturer           0 
      iProduct                1 
      iSerial                 2 
      bNumConfigurations      1
      Configuration Descriptor:
        bLength                 9
        bDescriptorType         2
        wTotalLength           41
        bNumInterfaces          1
        bConfigurationValue     1
        iConfiguration          0 
        bmAttributes         0x80
          (Bus Powered)
        MaxPower              500mA
        Interface Descriptor:
          bLength                 9
          bDescriptorType         4
          bInterfaceNumber        0
          bAlternateSetting       0
          bNumEndpoints           1
          bInterfaceClass       255 Vendor Specific Class
          bInterfaceSubClass      0 
          bInterfaceProtocol      0 
          iInterface              0 
          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           1
          bInterfaceClass       255 Vendor Specific Class
          bInterfaceSubClass      0 
          bInterfaceProtocol      0 
          iInterface              0 
          Endpoint Descriptor:
            bLength                 7
            bDescriptorType         5
            bEndpointAddress     0x84  EP 4 IN
            bmAttributes            1
              Transfer Type            Isochronous
              Synch Type               None
              Usage Type               Data
            wMaxPacketSize     0x03ac  1x 940 bytes
            bInterval               1
    hwinfo --usb

    Code:
    08: USB 00.0: 0000 Unclassified device
      [Created at usb.122]
      Unique ID: ADDn.aZuXoGqBp02
      Parent ID: k4bc.9T1GDCLyFd9
      SysFS ID: /devices/pci0000:00/0000:00:1d.7/usb1/1-1/1-1:1.0
      SysFS BusID: 1-1:1.0
      Hardware Class: unknown
      Model: "eMPIA USB 2875 Device"
      Hotplug: USB
      Vendor: usb 0xeb1a "eMPIA Technology, Inc."
      Device: usb 0x2875 "USB 2875 Device"
      Revision: "1.00"
      Serial ID: "10101010"
      Driver: "em28xx"
      Driver Modules: "em28xx"
      Speed: 480 Mbps
      Module Alias: "usb:vEB1Ap2875d0100dc00dsc00dp00icFFisc00ip00"
      Driver Info #0:
        Driver Status: em28xx is active
        Driver Activation Cmd: "modprobe em28xx"
      Config Status: cfg=new, avail=yes, need=no, active=unknown
      Attached to: #3 (Hub)
    dmesg | grep em28xx

    Code:
    [    5.827401] em28xx: New device  USB 2875 Device @ 480 Mbps (eb1a:2875, interface 0, class 0)
    [    5.827412] em28xx: DVB interface 0 found
    [    5.829355] em28xx #0: chip ID is em2874
    [    6.144090] em28xx #0: found i2c device @ 0xa0 [eeprom]
    [    6.188877] em28xx #0: Your board has no unique USB ID.
    [    6.188891] em28xx #0: A hint were successfully done, based on i2c devicelist hash.
    [    6.188899] em28xx #0: This method is not 100% failproof.
    [    6.188906] em28xx #0: If the board were missdetected, please email this log to:
    [    6.188914] em28xx #0:     V4L Mailing List  <linux-media@vger.kernel.org>
    [    6.188921] em28xx #0: Board detected as EM2874 Leadership ISDBT
    [    6.387419] em28xx #0: Identified as EM2874 Leadership ISDBT (card=77)
    [    6.387432] em28xx #0: v4l2 driver version 0.1.3
    [    6.482990] em28xx #0: V4L2 video device registered as video1
    [    6.494508] usbcore: registered new interface driver em28xx
    [    6.618558] DVB: registering new adapter (em28xx #0)
    [    6.620364] em28xx #0: Successfully loaded em28xx-dvb
    [    6.620376] Em28xx: Initialized (Em28xx dvb Extension) extension
    w_scan just fails with an error.

    w_scan -fa

    Code:
    w_scan version 20111203 (compiled for DVB API 5.4)
    WARNING: VDR up to version 1.7.13 doesn't support ATSC.
            Changing output format to 'vdr-1.7.x'
    using settings for UNITED STATES
    ATSC
    VSB US/CA, DVB-T TW
    frontend_type ATSC, channellist 1
    output format vdr-1.7
    WARNING: could not guess your codepage. Falling back to 'UTF-8'
    output charset 'UTF-8', use -C <charset> to override
    Info: using DVB adapter auto detection.
    main:3079: FATAL: ***** NO USEABLE ATSC CARD FOUND. *****
    Please check wether dvb driver is loaded and
    verify that no dvb application (i.e. vdr) is running.
    lsmod | grep 28xx

    Code:
    em28xx_dvb             22490  0 
    dvb_core               90137  1 em28xx_dvb
    em28xx                 89652  1 em28xx_dvb
    v4l2_common            20569  1 em28xx
    videobuf_vmalloc       13336  1 em28xx
    videobuf_core          25097  2 em28xx,videobuf_vmalloc
    tveeprom               17009  1 em28xx
    videodev               99779  4 em28xx,v4l2_common,uvcvideo,videobuf2_core
    The V4L2 code does include a em28xx driver, but it lists the 2875 as unknown.

    Any help would be appreciated, I have ran out of options trying things.

  2. #2
    Join Date
    Jul 2007
    Location
    Magic City of the Plains
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    Xubuntu 16.10 Yakkety Yak

    Re: EzCap ATSC

    Post moved to its own thread.

  3. #3
    Join Date
    Apr 2009
    Location
    Aotearoha
    Beans
    2,659
    Distro
    Ubuntu 10.04 Lucid Lynx

    Re: EzCap ATSC

    Some versions of your USB gadget are supported.

    http://linuxtv.org/wiki/index.php/Easycap
    http://linuxtv.org/wiki/index.php/Em28xx_devices

    Notes state some of the dongles (internal tuners) need firmware

    The comments about 2874 are not very promising..

  4. #4
    Join Date
    Feb 2008
    Location
    Oblivion
    Beans
    Hidden!
    Distro
    Xubuntu

    Re: EzCap ATSC

    I have the Ezycap DVB-T and it worked out of the box.

    Have you tried MeTV? It has an auto-scan function which negates the need to create your own channels.conf file (which you would then put in .xine for instance if you were using that, my personal fave).

    If you have a dig you may be able to find a channels.conf for your locale online and use that.

    Try booting with the Ezycap unplugged then before doing anything plug it in, open a terminal and run this:

    Code:
    dmesg
    Do you see any action for it at the bottom of that output?

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