Re: Very verbose message about em28174 chip.

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Hi,

It's normal for em28xx to give you that sort of information on device-plug - it does seem like a lot, but it's effectively "one-off" and you probably won't see much else during use of the device, under default module parameters. It's very useful log output if you have a new device or a slight variant of an existing one, as it takes very little effort to copy & paste the details here to help figure out how easy it is to support the device.

But as you know, that device works already, so you can just ignore it :)

Regards,
Steve.

On 28/07/13 14:19, Chris Rankin wrote:
Hi,

I plugged my PCTV 290e device into my newly compiled 3.10.3 kernel today, and found this message in the dmesg log.


[  511.041412] usb 10-4: new high-speed USB device number 3 using ehci-pci
[  511.216218] em28xx: New device PCTV Systems PCTV 290e @ 480 Mbps (2013:024f, interface 0, class 0)
[  511.223916] em28xx: DVB interface 0 found: isoc
[  511.227398] em28xx: chip ID is em28174
[  511.548310] em28174 #0: i2c eeprom 0000: 26 00 01 00 02 09 d8 85 80 80 e5 80 f4 f5 94 90
[  511.555554] em28174 #0: i2c eeprom 0010: 78 0d e4 f0 f5 46 12 00 5a c2 eb c2 e8 30 e9 03
[  511.562682] em28174 #0: i2c eeprom 0020: 12 09 de 30 eb 03 12 09 10 30 ec f1 12 07 72 80
[  511.569827] em28174 #0: i2c eeprom 0030: ec 00 60 00 e5 f5 64 01 60 09 e5 f5 64 09 60 03
[  511.576937] em28174 #0: i2c eeprom 0040: c2 c6 22 e5 f7 b4 03 13 e5 f6 b4 87 03 02 09 92
[  511.584138] em28174 #0: i2c eeprom 0050: e5 f6 b4 93 03 02 07 e6 c2 c6 22 c2 c6 22 12 09
[  511.591273] em28174 #0: i2c eeprom 0060: cf 02 06 19 1a eb 67 95 13 20 4f 02 c0 13 6b 10
[  511.598453] em28174 #0: i2c eeprom 0070: a0 1a ba 14 ce 1a 39 57 00 5c 18 00 00 00 00 00
[  511.605572] em28174 #0: i2c eeprom 0080: 00 00 00 00 44 36 00 00 f0 10 02 00 00 00 00 00
[  511.612694] em28174 #0: i2c eeprom 0090: 5b 23 c0 00 00 00 20 40 20 80 02 20 01 01 00 00
[  511.619821] em28174 #0: i2c eeprom 00a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
[  511.627001] em28174 #0: i2c eeprom 00b0: c6 40 00 00 00 00 a7 00 00 00 00 00 00 00 00 00
[  511.634120] em28174 #0: i2c eeprom 00c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 38 32
[  511.641199] em28174 #0: i2c eeprom 00d0: 34 31 30 31 31 36 36 30 31 37 31 31 32 36 58 59
[  511.648319] em28174 #0: i2c eeprom 00e0: 56 49 00 4f 53 49 30 30 33 30 38 44 30 31 30 36
[  511.655473] em28174 #0: i2c eeprom 00f0: 58 59 56 49 00 00 00 00 00 00 00 00 00 00 30 36
[  511.662628] em28174 #0: i2c eeprom 0100: ... (skipped)
[  511.666500] em28174 #0: EEPROM ID = 26 00 01 00, EEPROM hash = 0x1eb936d2
[  511.672023] em28174 #0: EEPROM info:
[  511.674338] em28174 #0:     microcode start address = 0x0004, boot configuration = 0x01
[  511.705368] em28174 #0:     No audio on board.
[  511.708286] em28174 #0:     500mA max power
[  511.710988] em28174 #0:     Table at offset 0x00, strings=0x0000, 0x0000, 0x0000
[  511.717120] em28174 #0: Identified as PCTV nanoStick T2 290e (card=78)
[  511.722436] em28174 #0: v4l2 driver version 0.2.0
[  511.731410] em28174 #0: V4L2 video device registered as video1
[  511.736043] em28174 #0: dvb set to isoc mode.
[  511.739638] usbcore: registered new interface driver em28xx
[  511.821414] tda18271 7-0060: creating new instance
[  511.829520] TDA18271HD/C2 detected @ 7-0060
[  512.000542] DVB: registering new adapter (em28174 #0)
[  512.004325] usb 10-4: DVB: registering adapter 0 frontend 0 (Sony CXD2820R)...
[  512.011191] em28174 #0: Successfully loaded em28xx-dvb
[  512.015077] Em28xx: Initialized (Em28xx dvb Extension) extension
[  512.056753] Registered IR keymap rc-pinnacle-pctv-hd
[  512.060784] input: em28xx IR (em28174 #0) as /devices/pci0000:00/0000:00:1d.7/usb10/10-4/rc/rc0/input16
[  512.069167] rc0: em28xx IR (em28174 #0) as /devices/pci0000:00/0000:00:1d.7/usb10/10-4/rc/rc0
[  512.076882] Em28xx: Initialized (Em28xx Input Extension) extension
[  552.064828] tda18271: performing RF tracking filter calibration
[  554.417676] tda18271: RF tracking filter calibration complete


Presumably something this verbose is intended to be shared, so here it is. (I can't think of any other reason why this amount of information would be logged by default).


Cheers,
Chris

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Steve Kerrison MEng Hons.
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