Em28xx devices: Difference between revisions

Revision as of 10:22, 5 February 2008

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

used on older analog only device designs. These chips have support for USB Audio Class; so, audio module is snd-usb-audio

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.

The following needs to be cleaned up and/or integrated into the article:

Development -- originally by 4 authors. one of the authors, mrec, forked.

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 or XC2028 tuner, which require a generic firmware from Xceive).

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

@@ Line 34: / Line 34: @@
 ==Driver==
-Development -- originally mrec, then he forked. in kernel xc3028 driver based on mrec's original work.
+Development -- originally by 4 authors. one of the authors, mrec, forked.
 ===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).
+* 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).
 ==External Links==