Em28xx devices: Difference between revisions
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This article discusses some [[USB]] interface chipset families produced by [[EMPIA Technology|EMPIA]], and, in addition, addresses the driver that support these chips. |
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==em2800/em2820/em2821/em2840== |
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* used on older analog only device designs. These chips have support for USB Audio Class; so, audio module is snd-usb-audio |
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===em2820/em2840 based devices=== |
===em2820/em2840 based devices=== |
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* [[Em2820/vgear]] |
* [[Em2820/vgear]] |
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==em2880/2881/2883== |
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* 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. |
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===em2880 based devices=== |
===em2880 based devices=== |
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* [http://videologyinc.com/cameras/ccd-board-camera-20K14XUSB.htm Videology 20K14XUSB webcam] |
* [http://videologyinc.com/cameras/ccd-board-camera-20K14XUSB.htm Videology 20K14XUSB webcam] |
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===Some Misc stuff=== |
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The following needs to be cleaned up and/or integrated into the article: |
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* [[Em2880/Eeproms]] |
* [[Em2880/Eeproms]] |
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* [[Em2880/Todo]] |
* [[Em2880/Todo]] |
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* [[Em2880/remote]] |
* [[Em2880/remote]] |
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==em2750== |
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* Seem to be used by some [[Webcams]]. |
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==Driver== |
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Development -- originally mrec, then he forked. in kernel xc3028 driver based on mrec's original work. |
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===Feature Support=== |
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* in-kernel em28xx driver: radio and analog TV (including broadcast audio) are working fine. Support for DVB/ATSC is not present yet. |
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* 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 Xceive xc3028, which require a generic firmware from Xceive). |
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==External Links== |
==External Links== |
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* [http://www.empiatech.com.tw/pro_em2880.htm |
* [http://www.empiatech.com.tw/pro_em2880.htm EMPIA EM2880 product page] |
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* [http://www.empiatech.com.tw/pro_em2820.htm |
* [http://www.empiatech.com.tw/pro_em2820.htm EMPIA EM2820/EM2840 product page] |
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* [http://www.empiatech.com.tw/pro_em2750.htm EMPIA EM2750 product page] |
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* [http://mcentral.de/wiki/index.php5/Main_Page mcentral.de wiki] offers alternative, out of kernel, drivers for some em28xx based devices: |
* [http://mcentral.de/wiki/index.php5/Main_Page mcentral.de wiki] offers alternative, out of kernel, drivers for some em28xx based devices: |
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** [http://mcentral.de/wiki/index.php5/Em2880 mrec's page on the em2880] ... note: that the information seems heavily tied to devices which utilise a xceive xc3028 tuner ... hence you may also want to read his xc3028 page for related info |
** [http://mcentral.de/wiki/index.php5/Em2880 mrec's page on the em2880] ... note: that the information seems heavily tied to devices which utilise a xceive xc3028 tuner ... hence you may also want to read his xc3028 page for related info |
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Revision as of 01:02, 30 January 2008
This article discusses some USB interface chipset families produced by EMPIA, and, in addition, addresses the driver that support these chips.
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
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
- KWorld 350U DVB-T
- KWorld 310U
- KWorld USB2800
- Em2880/PinnaclePCTV
- Videology 20K14XUSB webcam
Some Misc stuff
The following needs to be cleaned up and/or integrated into the article:
em2750
- Seem to be used by some Webcams.
Driver
Development -- originally mrec, then he forked. in kernel xc3028 driver based on mrec's original work.
Feature Support
- in-kernel em28xx driver: radio and analog TV (including broadcast audio) are working fine. Support for DVB/ATSC is not present yet.
- 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 Xceive xc3028, which require a generic firmware from Xceive).
External Links
- EMPIA EM2880 product page
- EMPIA EM2820/EM2840 product page
- EMPIA EM2750 product page
- mcentral.de wiki offers alternative, out of kernel, drivers for some em28xx based devices:
- mrec's page on the em2880 ... note: that the information seems heavily tied to devices which utilise a xceive xc3028 tuner ... hence you may also want to read his xc3028 page for related info
- mrec's page on the em2820