em28xx detection

is em2820 detected as em2860

Bus 001 Device 004: ID eb1a:2820 eMPIA Technology, Inc.

usbcore: registered new interface driver em28xx
em28xx driver loaded
em28xx: New device @ 480 Mbps (eb1a:2820, interface 0, class 0)
em28xx #0: chip ID is em2820 (or em2710)
em28xx #0: board has no eeprom
em28xx #0: found i2c device @ 0x4a [saa7113h]
em28xx #0: Your board has no unique USB ID.
em28xx #0: A hint were successfully done, based on i2c devicelist hash. em28xx #0: This method is not 100% failproof.
em28xx #0: If the board were missdetected, please email this log to:
em28xx #0: V4L Mailing List <[email protected]>
em28xx #0: Board detected as EM2860/SAA711X Reference Design
em28xx #0: Identified as EM2860/SAA711X Reference Design (card=19)
em28xx #0: Registering snapshot button...
input: em28xx snapshot button as /devices/pci0000:00/0000:00:1d.7/usb1/1-3/input/input1 em28xx #0: Config register raw data: 0x00
em28xx #0: v4l2 driver version 0.1.2
em28xx #0: V4L2 video device registered as video0

Nothing works with this device anymore and it used to work with application <motion> and <vlc> still works fine in windows apps and windows vlc sees a em2820

Thank you

Em 17-07-2011 16:14, Pupthai escreveu:

Your device doesn't have an eeprom. So, there's no reliable way to identify what board you have. Kernel can try to hint, but there will always be cases where two different boards will match such hint. On such cases (like yours), you'll need to modprobe em28xx with card= parameter.

If your device used to be supported by the in-kernel em28xx driver, all you need is to add something like:
options em28xx card=20

(well, replacing 20 by the correct card number from Documentation/video4linux/CARDLIST.em28xx)

If otherwise your board is not listed there, then you'll need to discover what are the correct setups for it and send us a patch adding a new card number with your configs.

Mauro