View source for Em28xx devices

This article discusses some [[USB]] interface chipset families produced by [[EMPIA Technology|EMPIA]], and, in addition, addresses the driver that support these chips.

==How to compile the latest em28xx driver?==
See the [[How to Obtain, Build and Install V4L-DVB Device Drivers]] article



== Boards ==
=== How to identify my USB vendor/product id? ===

  shell> '''lsusb'''<br>
  If you can't recognize the vendor/product id from your device contact [http://vger.kernel.org/vger-lists.html#linux-media linux-media mail-list]

=== Validated boards ===
==== What's it? ====
  We use this term to advise that boards were tested by user or developer.

==== Table of validated boards ====
{| border="1" cellpadding="2"
!width="150"|Define
!width="200"|Name
!width="200"|Vendor/Product ID
!width="200"|Supported modes
|-
|<center>EM2820_BOARD_KWORLD_PVRTV2800RF</center> ||<center>Kworld PVR TV 2800 RF</center>
|<center>-</center> || <center>Analog</center>
|-
|<center>EM2820_BOARD_TERRATEC_CINERGY_250</center> ||<center>Terratec Cinergy 250 USB</center>
|<center>0x0ccd:0x0036</center> || <center>Analog</center>
|-
|<center>EM2820_BOARD_PINNACLE_USB_2</center> ||<center>Pinnacle PCTV USB 2</center>
|<center>0x2304:0x0208</center> || <center>Analog</center>
|-
|<center>EM2820_BOARD_HAUPPAUGE_WINTV_USB_2</center> ||<center>Hauppauge WinTV USB 2</center>
|<center>0x2040, 0x4201</center> || <center>Analog</center>
|-
|<center>EM2820_BOARD_HAUPPAUGE_WINTV_USB_2</center> ||<center>Hauppauge WinTV USB 2</center>
|<center>0x2040:0x4200</center> || <center>Analog</center>
|-
|<center>EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900</center> ||<center>Hauppauge WinTV HVR 900</center>
|<center>0x2040:0x6500</center> || <center>Analog/DVB</center>
|-
|<center>EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2</center> ||<center>Hauppauge WinTV HVR 900 (R2)</center>
|<center>0x2040:0x6502</center> || <center>Analog/DVB</center>
|-
|<center>EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950</center> ||<center>HCW HVR-980</center>
|<center>0x2040:0x6513</center> || <center>Analog/DVB</center>
|-
|<center>EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950</center> ||<center>HP HVR-950</center>
|<center>0x2040:0x6517</center> || <center>Analog/DVB</center>
|-
|<center>EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950</center> ||<center>HP HVR-950</center>
|<center>0x2040:0x6517</center> || <center>Analog/DVB</center>
|-
|<center>EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950</center> ||<center>RP HVR-950</center>
|<center>0x2040:0x651b</center> || <center>Analog/DVB</center>
|-
|<center>EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950</center> ||<center>HCW HVR-850</center>
|<center>0x2040:0x651f</center> || <center>Analog/DVB</center>
|-
|<center>EM2880_BOARD_PINNACLE_PCTV_HD_PRO</center> ||<center>Pinnacle PCTV HD Pro Stick</center>
|<center>0x2304:0x0227</center> || <center>Analog/DVB</center>
|-
|<center>EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600</center> ||<center>AMD ATI TV Wonder HD 600</center>
|<center>0x0438:0xb002</center> || <center>Analog/DVB</center>
|-
|<center>EM2880_BOARD_TERRATEC_HYBRID_XS</center> ||<center>Terratec Hybrid XS</center>
|<center>0x0ccd:0x0042</center> || <center>Analog/DVB</center>
|-
|<center>EM2880_BOARD_TERRATEC_PRODIGY_XS</center> ||<center>Terratec Prodigy XS</center>
|<center>0x0ccd:0x0047</center> || <center>Analog</center>
|-
|<center>EM2820_BOARD_MSI_VOX_USB_2</center> ||<center>MSI VOX USB 2.0</center>
|<center>-</center> || <center>Analog</center>
|-
|<center>EM2800_BOARD_TERRATEC_CINERGY_200</center> ||<center>Terratec Cinergy 200 USB</center>
|<center>0xeb1a:0x2800</center> || <center>Analog</center>
|-
|<center>EM2800_BOARD_GRABBEEX_USB2800</center> ||<center>eMPIA Technology, Inc. GrabBeeX+ Video Encoder</center>
|<center>0xeb1a:0x2801</center> || <center>Analog</center>
|-
|<center>EM2800_BOARD_LEADTEK_WINFAST_USBII</center> ||<center>Leadtek Winfast USB II</center>
|<center>0x0413:0x6023</center> || <center>Analog</center>
|-
|<center>EM2800_BOARD_KWORLD_USB2800</center> ||<center>Kworld USB2800</center>
|<center>-</center> || <center>Analog</center>
|-
|<center>EM2820_BOARD_PINNACLE_DVC_90</center> ||<center>Pinnacle Dazzle DVC 90/DVC 100</center>
|<center>0x2304:0x0207</center> || <center>Analog</center>
|-
|<center>EM2884_BOARD_PCTV_520E</center> ||<center>PCTVSystems QuatroStick-nano 520e</center>
|<center>0x2013:0x0251</center> || <center>DVB</center>
|-
|<center>EM2800_BOARD_VGEAR_POCKETTV</center> ||<center>V-Gear PocketTV</center>
|<center>-</center> || <center>Analog</center>
|-
|<center>EM2820_BOARD_PROLINK_PLAYTV_USB2</center> ||<center>Pixelview Prolink PlayTV USB 2.0</center>
|<center>0xeb1a:0x2821</center> || <center>Analog</center>
|-
|<center>EM2860_BOARD_POINTNIX_INTRAORAL_CAMERA</center> ||<center>PointNix Intra-Oral Camera</center>
|<center>-</center> || <center>Analog</center>
|-
|<center>EM2820_BOARD_COMPRO_VIDEOMATE_FORYOU</center> ||<center>Compro VideoMate ForYou/Stereo</center>
|<center>0x185b:0x2041</center> || <center>Analog</center>
|-
|}<br>

=== Not Validated boards ===
==== What's it? ====
  Not validate means: that your device was added to kernel but the developer(es) doesn't have the hardware for tests.
  If you would like to help and inform that you hardware work (or not) please see section
  [http://www.linuxtv.org/v4lwiki/index.php/Em28xx_devices#How_to_validate_my_vendor.2Fproduct_id_at_upstream_kernel.3F How to validate my vendor/product id at upstream kernel]

==== Table of NOT validated boards====
{| border="1" cellpadding="2"
!width="150"|Define
!width="200"|Name
!width="200"|Vendor/Product ID
!width="200"|Status
|-
|<center>EM2750_BOARD_DLCW_130</center> ||<center>Huaqi DLCW-130</center>
|<center>-</center> || <center>Not validated ([http://www.linuxtv.org/v4lwiki/index.php/Em28xx_devices#How_to_validate_my_vendor.2Fproduct_id_at_upstream_kernel.3F change it])</center>
|-
|<center>EM2820_BOARD_DLINK_USB_TV</center> ||<center>D-Link DUB-T210 TV Tuner</center>
|<center>0x2001:0xf112</center> || <center>Not validated ([http://www.linuxtv.org/v4lwiki/index.php/Em28xx_devices#How_to_validate_my_vendor.2Fproduct_id_at_upstream_kernel.3F change it])</center>
|-
|<center>EM2820_BOARD_HERCULES_SMART_TV_USB2</center> ||<center>Hercules Smart TV USB 2.0</center>
|<center>-</center> || <center>Not validated ([http://www.linuxtv.org/v4lwiki/index.php/Em28xx_devices#How_to_validate_my_vendor.2Fproduct_id_at_upstream_kernel.3F change it])</center>
|-
|<center>EM2820_BOARD_PINNACLE_USB_2_FM1216ME</center> ||<center>Pinnacle PCTV USB 2 (Philips FM1216ME)</center>
|<center>-</center> || <center>Not validated ([http://www.linuxtv.org/v4lwiki/index.php/Em28xx_devices#How_to_validate_my_vendor.2Fproduct_id_at_upstream_kernel.3F change it])</center>
|-
|<center>EM2820_BOARD_GADMEI_UTV310</center> ||<center>Gadmei UTV310</center>
|<center>-</center> || <center>Not validated ([http://www.linuxtv.org/v4lwiki/index.php/Em28xx_devices#How_to_validate_my_vendor.2Fproduct_id_at_upstream_kernel.3F change it])</center>
|-
|<center>EM2820_BOARD_LEADTEK_WINFAST_USBII_DELUXE</center> ||<center>Leadtek Winfast USB II Deluxe</center>
|<center>-</center> || <center>Not validated ([http://www.linuxtv.org/v4lwiki/index.php/Em28xx_devices#How_to_validate_my_vendor.2Fproduct_id_at_upstream_kernel.3F change it])</center>
|-
|<center>EM2820_BOARD_PINNACLE_DVC_100</center> ||<center>Pinnacle Dazzle DVC 100</center>
|<center>-</center> || <center>Not validated ([http://www.linuxtv.org/v4lwiki/index.php/Em28xx_devices#How_to_validate_my_vendor.2Fproduct_id_at_upstream_kernel.3F change it])</center>
|-
|<center>EM2820_BOARD_VIDEOLOGY_20K14XUSB</center> ||<center>Videology 20K14XUSB USB2.0</center>
|<center>-</center> || <center>Not validated ([http://www.linuxtv.org/v4lwiki/index.php/Em28xx_devices#How_to_validate_my_vendor.2Fproduct_id_at_upstream_kernel.3F change it])</center>
|-
|<center>EM2821_BOARD_PROLINK_PLAYTV_USB2</center> ||<center>SIIG AVTuner-PVR/Prolink PlayTV USB 2.0</center>
|<center>-</center> || <center>Not validated ([http://www.linuxtv.org/v4lwiki/index.php/Em28xx_devices#How_to_validate_my_vendor.2Fproduct_id_at_upstream_kernel.3F change it])</center>
|-
|<center>EM2821_BOARD_SUPERCOMP_USB_2</center> ||<center>Supercomp USB 2.0 TV</center>
|<center>-</center> || <center>Not validated ([http://www.linuxtv.org/v4lwiki/index.php/Em28xx_devices#How_to_validate_my_vendor.2Fproduct_id_at_upstream_kernel.3F change it])</center>
|-
|<center>EM2821_BOARD_USBGEAR_VD204</center> ||<center>Usbgear VD204v9</center>
|<center>-</center> || <center>Not validated ([http://www.linuxtv.org/v4lwiki/index.php/Em28xx_devices#How_to_validate_my_vendor.2Fproduct_id_at_upstream_kernel.3F change it])</center>
|-
|<center>EM2860_BOARD_NETGMBH_CAM</center> ||<center>NetGMBH Cam</center>
|<center>-</center> || <center>Not validated ([http://www.linuxtv.org/v4lwiki/index.php/Em28xx_devices#How_to_validate_my_vendor.2Fproduct_id_at_upstream_kernel.3F change it])</center>
|-
|<center>EM2860_BOARD_TYPHOON_DVD_MAKER</center> ||<center>Typhoon DVD Maker</center>
|<center>-</center> || <center>Not validated ([http://www.linuxtv.org/v4lwiki/index.php/Em28xx_devices#How_to_validate_my_vendor.2Fproduct_id_at_upstream_kernel.3F change it])</center>
|-
|<center>EM2860_BOARD_GADMEI_UTV330</center> ||<center>Gadmei UTV330</center>
|<center>-</center> || <center>Not validated ([http://www.linuxtv.org/v4lwiki/index.php/Em28xx_devices#How_to_validate_my_vendor.2Fproduct_id_at_upstream_kernel.3F change it])</center>
|-
|<center>EM2860_BOARD_TERRATEC_HYBRID_XS</center> ||<center>Terratec Cinergy A Hybrid XS</center>
|<center>0x0ccd, 0x004f</center> || <center>Not validated ([http://www.linuxtv.org/v4lwiki/index.php/Em28xx_devices#How_to_validate_my_vendor.2Fproduct_id_at_upstream_kernel.3F change it])</center>
|-
|<center>EM2861_BOARD_KWORLD_PVRTV_300U</center> ||<center>KWorld PVRTV 300U</center>
|<center>0xeb1a, 0xe300</center> || <center>Not validated ([http://www.linuxtv.org/v4lwiki/index.php/Em28xx_devices#How_to_validate_my_vendor.2Fproduct_id_at_upstream_kernel.3F change it])</center>
|-
|<center>EM2861_BOARD_YAKUMO_MOVIE_MIXER</center> ||<center>Yakumo MovieMixer</center>
|<center>-</center> || <center>Not validated ([http://www.linuxtv.org/v4lwiki/index.php/Em28xx_devices#How_to_validate_my_vendor.2Fproduct_id_at_upstream_kernel.3F change it])</center>
|-
|<center>EM2861_BOARD_PLEXTOR_PX_TV100U</center> ||<center>Plextor ConvertX PX-TV100U</center>
|<center>0x093b:0xa005</center> || <center>Not validated ([http://www.linuxtv.org/v4lwiki/index.php/Em28xx_devices#How_to_validate_my_vendor.2Fproduct_id_at_upstream_kernel.3F change it])</center>
|-
|<center>EM2863_BOARD_SILVERCREST_VG2000</center> ||<center>[[SilverCrest_USB_2.0_Video_Grabber_VG_2000|SilverCrest USB-Video-Grabber VG 2000]]</center>
|<center>0xeb1a:0x2863</center> || <center>Validated ([http://www.linuxtv.org/v4lwiki/index.php/Em28xx_devices#How_to_validate_my_vendor.2Fproduct_id_at_upstream_kernel.3F change it])</center>
|-
|<center>EM2870_BOARD_TERRATEC_XS</center> ||<center>Terratec Cinergy T XS</center>
|<center>0x0ccd:0x0043</center> || <center>Not validated ([http://www.linuxtv.org/v4lwiki/index.php/Em28xx_devices#How_to_validate_my_vendor.2Fproduct_id_at_upstream_kernel.3F change it])</center>
|-
|<center>EM2870_BOARD_TERRATEC_XS_MT2060</center> ||<center>Terratec Cinergy T XS (MT2060)</center>
|<center>-</center> || <center>Not validated ([http://www.linuxtv.org/v4lwiki/index.php/Em28xx_devices#How_to_validate_my_vendor.2Fproduct_id_at_upstream_kernel.3F change it])</center>
|-
|<center>EM2870_BOARD_KWORLD_350U</center> ||<center>Kworld 350 U DVB-T</center>
|<center>0xeb1a:0xe350</center> || <center>Not validated ([http://www.linuxtv.org/v4lwiki/index.php/Em28xx_devices#How_to_validate_my_vendor.2Fproduct_id_at_upstream_kernel.3F change it])</center>
|-
|<center>EM2870_BOARD_KWORLD_355U</center> ||<center>Kworld 355 U DVB-T</center>
|<center>0xeb1a:0xe355</center> || <center>Not validated ([http://www.linuxtv.org/v4lwiki/index.php/Em28xx_devices#How_to_validate_my_vendor.2Fproduct_id_at_upstream_kernel.3F change it])</center>
|-
|<center>EM2870_BOARD_PINNACLE_PCTV_DVB</center> ||<center>Pinnacle PCTV DVB-T</center>
|<center>-</center> || <center>Not validated ([http://www.linuxtv.org/v4lwiki/index.php/Em28xx_devices#How_to_validate_my_vendor.2Fproduct_id_at_upstream_kernel.3F change it])</center>
|-
|<center>EM2870_BOARD_COMPRO_VIDEOMATE</center> ||<center>Compro, VideoMate U3</center>
|<center>0x185b:0x2870</center> || <center>Not validated ([http://www.linuxtv.org/v4lwiki/index.php/Em28xx_devices#How_to_validate_my_vendor.2Fproduct_id_at_upstream_kernel.3F change it])</center>
|-
|<center>EM2880_BOARD_TERRATEC_HYBRID_XS_FR</center> ||<center>Terratec Hybrid XS Secam</center>
|<center>0x0ccd:0x004c</center> || <center>Not validated ([http://www.linuxtv.org/v4lwiki/index.php/Em28xx_devices#How_to_validate_my_vendor.2Fproduct_id_at_upstream_kernel.3F change it])</center>
|-
|<center>EM2880_BOARD_MSI_DIGIVOX_AD</center> ||<center>MSI DigiVox A/D</center>
|<center>0xeb1a:0xe310</center> || <center>Not validated ([http://www.linuxtv.org/v4lwiki/index.php/Em28xx_devices#How_to_validate_my_vendor.2Fproduct_id_at_upstream_kernel.3F change it])</center>
|-
|<center>EM2880_BOARD_MSI_DIGIVOX_AD_II</center> ||<center>MSI DigiVox A/D II</center>
|<center>0xeb1a:0xe320</center> || <center>Not validated ([http://www.linuxtv.org/v4lwiki/index.php/Em28xx_devices#How_to_validate_my_vendor.2Fproduct_id_at_upstream_kernel.3F change it])</center>
|-
|<center>EM2880_BOARD_KWORLD_DVB_305U</center> ||<center>KWorld DVB-T 305U</center>
|<center>0xeb1a:0xe305</center> || <center>Not validated ([http://www.linuxtv.org/v4lwiki/index.php/Em28xx_devices#How_to_validate_my_vendor.2Fproduct_id_at_upstream_kernel.3F change it])</center>
|-
|<center>EM2880_BOARD_KWORLD_DVB_310U</center> ||<center>KWorld DVB-T 310U</center>
|<center>0xeb1a:e310</center> || <center>Not validated ([http://www.linuxtv.org/v4lwiki/index.php/Em28xx_devices#How_to_validate_my_vendor.2Fproduct_id_at_upstream_kernel.3F change it])</center>
|-
|<center>EM2881_BOARD_DNT_DA2_HYBRID</center> ||<center>DNT DA2 Hybrid</center>
|<center>-</center> || <center>Not validated ([http://www.linuxtv.org/v4lwiki/index.php/Em28xx_devices#How_to_validate_my_vendor.2Fproduct_id_at_upstream_kernel.3F change it])</center>
|-
|<center>EM2881_BOARD_PINNACLE_HYBRID_PRO</center> ||<center>Pinnacle Hybrid Pro</center>
|<center>-</center> || <center>Not validated ([http://www.linuxtv.org/v4lwiki/index.php/Em28xx_devices#How_to_validate_my_vendor.2Fproduct_id_at_upstream_kernel.3F change it])</center>
|-
|<center>EM2882_BOARD_PINNACLE_HYBRID_PRO</center> ||<center>Pinnacle Hybrid Pro (2)</center>
|<center>0x2304:0x0226</center> || <center>Not validated ([http://www.linuxtv.org/v4lwiki/index.php/Em28xx_devices#How_to_validate_my_vendor.2Fproduct_id_at_upstream_kernel.3F change it])</center>
|-
|<center>EM2882_BOARD_KWORLD_VS_DVBT</center> ||<center>Kworld VS-DVB-T 323UR</center>
|<center>0xeb1a:0xe323</center> || <center>Not validated ([http://www.linuxtv.org/v4lwiki/index.php/Em28xx_devices#How_to_validate_my_vendor.2Fproduct_id_at_upstream_kernel.3F change it])</center>
|-
|<center>EM2882_BOARD_TERRATEC_HYBRID_XS</center> ||<center>Terratec Hybrid XS (em2882)</center>
|<center>0x0ccd:0x005e</center> || <center>Not validated ([http://www.linuxtv.org/v4lwiki/index.php/Em28xx_devices#How_to_validate_my_vendor.2Fproduct_id_at_upstream_kernel.3F change it])</center>
|-
|<center>EM2883_BOARD_KWORLD_HYBRID_A316</center> ||<center>Kworld PlusTV HD Hybrid 330</center>
|<center>0xeb1a:0xa316</center> || <center>Not validated ([http://www.linuxtv.org/v4lwiki/index.php/Em28xx_devices#How_to_validate_my_vendor.2Fproduct_id_at_upstream_kernel.3F change it])</center>
|-
|}

==== How to validate my vendor/product id at upstream kernel?====
  
* Send your board name, lsusb output and tests made to [http://vger.kernel.org/vger-lists.html#linux-media linux-media mail-list]

* Example:

  From: foobar
  '''To''': linux-media@...
  '''Subject''': em28xx: new board id [0b1a:2821]<br>
  Hi, <br>
  I've made tests with my '''Pixelview''' board:<br>
  '''Model''': Prolink PlayTV USB 2.0
  '''Vendor/Product id''': [0b1a:2821].<br>
  '''Tests made''': <br>
      - Analog [Worked]
      - DVB    [this board doesn't support dvb mode]<br>
  '''Tested-by''': foobar <foobar@foobar.com><br>
  ~foobar<br>
Otherwise, if you had any issue, please contact [http://vger.kernel.org/vger-lists.html#linux-media linux-media mail-list].

== If some features doesn't work (i.e: audio, dvb, s-video)==
===Should I call whom?===
  Please contact [http://vger.kernel.org/vger-lists.html#linux-media linux-media mail-list].

===Usbsnoop===
  If you were asked to sniff your device, use these [http://www.linuxtv.org/wiki/index.php/Bus_snooping/sniffing#Snooping_Procedures: instructions]

==About em28xx models==
===em2800/em2820/em2821/em2840===
* used on older analog only device designs. These chips have support for USB Audio Class; so, audio module is snd-usb-audio

====em2820/em2840 based devices====
* [[ADS Tech Instant TV (USBAV-704)]]
* [[Gadmei utv 310]]
* [[Pinnacle_PCTV_USB2]] 
* [[USBGear USB2.0 Video Adapter With Audio (VD204)]]
* [[V-Gear PocketTV]]

===em2860===
EM2860 supports Video decoder Audio decoder and VBI
====em2860 based devices====
* [[Kaiser Baas USB DVD Maker 2 (KBA0300300)]]
* [[Gadmei USB TVBox UTV380]]
* [[Honestech Vidbox NW03]]
====em2863 based devices====
* [[SilverCrest_USB_2.0_Video_Grabber_VG_2000|SilverCrest USB 2.0 Video Grabber VG 2000]]

===em2870/2871/2872/2873===
* supports DVB/ATSC (but with no analog support).  This is targeted at digital only devices.
EM2870 devices include:
* [[Compro VideoMate U3]]

===em2874===
* next generation version of the em2870 design - they moved around a bunch of registers compared to em2870/2880 and the chip itself supports two transport streams (although most designs will probably only use one stream).

===em2880/2881/2883===
* supports DVB/ATSC. Doesn't provide USB Audio Class. Instead, digital audio is provided via an USB Vendor Class; so, these chips require the em28xx-alsa module for digital audio to work.

====em2880 based devices====
* EVGA inDtube
* KWorld 350U DVB-T 
* [[KWorld DVB-T 355U]]
* KWorld 310U  
* KWorld USB2800
* [[Pinnacle PCTV unidentified DVB-T USB device]]
* [http://videologyinc.com/cameras/ccd-board-camera-20K14XUSB.htm Videology 20K14XUSB webcam]

===em2710/em2750 based devices===
* used by on some [[Webcam Devices]].

===em276x/em277x/em278x based devices===
* latest bridge generation for camera devices
* optional UVC (USB video class) support
* supports MPEG video format
* supports several advanced camera functionalities, such as autofocus, image statistics etc.
<br>
Known devices:<br>
[http://www.linuxtv.org/wiki/index.php/VAD_Laplace SpeedLink VAD Laplace webcam] (em2765 + OV2640)

===em25xx===
* seems to be the Chinese market versions of the em276x/7x/8x bridges

==Some Misc stuff==
The following needs to be cleaned up and/or integrated into the article:
* [[Em2880/remote]]

==Sample Kernel Output for Pinnacle PCTV nanoStick T2 on kernel 3.6r2 with latest drivers==
<pre>
[    6.784732] media: Linux media interface: v0.10
[    6.786876] Linux video capture interface: v2.00

... You may see the following section IF you are using the latest drivers:

[    6.786879] WARNING: You are using an experimental version of the media stack.
	As the driver is backported to an older kernel, it doesn't offer
	enough quality for its usage in production.
	Use it with care.
Latest git patches (needed if you report a bug to linux-media@vger.kernel.org):
	8f7e91a31fb95c50880c76505b416630c0326d93 [media] smiapp-pll: Constify limits argument to smiapp_pll_calculate()
	6ec84a28f5f40e3ebef5d8186c4b11b10aa295d7 [media] smiapp-pll: Create a structure for OP and VT limits
	f5984bbdf402b586581bc292a5449f17ce4b8209 [media] smiapp-pll: Parallel bus support
[    6.793364] em28xx: New device PCTV Systems PCTV 290e @ 480 Mbps (2013:024f, interface 0, class 0)
[    6.793366] em28xx: DVB interface 0 found
[    6.793479] em28xx #0: chip ID is em28174

...

[    7.087134] em28xx #0: Identified as PCTV nanoStick T2 290e (card=78)
[    7.087137] em28xx #0: v4l2 driver version 0.1.3
[    7.092015] em28xx #0: V4L2 video device registered as video0
[    7.092408] usbcore: registered new interface driver em28xx
[    7.192689] cx88/2: cx2388x MPEG-TS Driver Manager version 0.0.9 loaded

... 

[    7.219209] WARNING: You are using an experimental version of the media stack.
	As the driver is backported to an older kernel, it doesn't offer
	enough quality for its usage in production.
	Use it with care.
Latest git patches (needed if you report a bug to linux-media@vger.kernel.org):
	8f7e91a31fb95c50880c76505b416630c0326d93 [media] smiapp-pll: Constify limits argument to smiapp_pll_calculate()
	6ec84a28f5f40e3ebef5d8186c4b11b10aa295d7 [media] smiapp-pll: Create a structure for OP and VT limits
	f5984bbdf402b586581bc292a5449f17ce4b8209 [media] smiapp-pll: Parallel bus support
[    7.281849] tda18271 3-0060: creating new instance
[    7.286351] TDA18271HD/C2 detected @ 3-0060
[    7.415159] IR Sony protocol handler initialized
[    7.454729] DVB: registering new adapter (em28xx #0)
[    7.454737] usb 1-7: DVB: registering adapter 1 frontend 0 (Sony CXD2820R)...
[    7.455024] em28xx #0: Successfully loaded em28xx-dvb
[    7.455027] Em28xx: Initialized (Em28xx dvb Extension) extension

...

[    7.514020] Registered IR keymap rc-pinnacle-pctv-hd
[    7.514192] input: em28xx IR (em28xx #0) as /devices/pci0000:00/0000:00:04.1/usb1/1-7/rc/rc1/input8
[    7.514312] rc1: em28xx IR (em28xx #0) as /devices/pci0000:00/0000:00:04.1/usb1/1-7/rc/rc1
[    7.517100] Em28xx: Initialized (Em28xx Input Extension) extension
[    7.529406] lirc_dev: IR Remote Control driver registered, major 241 

</pre>

==Feature Support==
* No firmware is required for em28xx ICs ... note: though em28xx based devices paired with some tuners will need firmware for the tuner (i.e. there are em28xx based devices paired with a [http://www.linuxtv.org/wiki/index.php/Xceive_XC3028/XC2028 XCeive XC3028 or XC2028] tuner, which require a generic firmware from Xceive).

==About Driver==
* Development -- originally by 4 Ludovico Cavedon, Markus Rechberger, Mauro Carvalho Chehab, Sascha Sommer.<br>
* One of the authors, Markus Rechberger, is now developing only closed source binary drivers.

==External Links==
* [http://www.empiatech.com.tw/pro_em2880.htm EMPIA EM2880 product page]
* [http://www.empiatech.com.tw/pro_em2820.htm EMPIA EM2820/EM2840 product page]
* [http://www.empiatech.com.tw/pro_em2750.htm EMPIA EM2750 product page]

== Additional Help ==
Contact developers at [http://vger.kernel.org/vger-lists.html#linux-media linux-media mail-list]
[[Category:Development]]