Re: [linux-dvb] KWORLD 323U, kernel panic when trying to access ALSA interface

2009-11-04 Thread Devin Heitmueller 
2009/11/4 Marios Andreopoulos opensou...@andmarios.com:
 Just a small update.

 After this message of yours: 
 http://www.linuxtv.org/pipermail/linux-dvb/2009-October/032442.html
 I tried again the v4l-dvb tree and now my card works without problems!

 I don’t know what the problem was with your tree. I think another tree I had 
 used previously copied it’s modules to a non standard location in 
 /lib/modules/current-kernel/ and thus its modules took precedence over the 
 kernels’, yours’ or v4l-dvb’s modules.

 It just happened that I upgraded my kernel recently and found out that 
 v4l-dvb works now.

 Thanks!

Well the fix I mentioned for the audio panic was merged on October
29th (and that's the only change that's been made to the driver in
five months).  This makes me think that perhaps you made some mistake
when you tried out the testing tree I sent you.

Regardless, it's a relief to hear that it's working for you now, since
I didn't have any idea what the problem could be if it wasn't the
crash that I fixed.

I'll see about getting this backported to stable, since 2.6.31 users
are likely to hit this issue as they upgrade to newer distros (such as
the recently released Ubuntu 9.10).

Cheers,

Devin

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http://www.kernellabs.com
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Re: [linux-dvb] KWORLD 323U, kernel panic when trying to access ALSA interface

2009-10-15 Thread Devin Heitmueller 
2009/9/28 Marios Andreopoulos opensou...@andmarios.com:
 On Monday 28 of September 2009, Devin Heitmueller wrote:

 Hello Marios,

 I started doing some debugging em28xx audio on the HVR-950 and hit
 what is probably the same panic (which occurs as soon as you run the
 arecord command).  I've got a stack dump and am actively debugging the
 issue.

 It seems that a regression has been recently introduced.

 Devin



 If there is any way I can help please let me know.
 I do not know much about developing or debugging software but I believe I'm 
 able to follow instructions to get a dump or do some trials if there is a 
 need.

 Thanks for the really quick reply,
 Marios

Hello Marios,

Sorry about the extended delay on this.  Please try out the following
tree and see if you still hit a panic:

http://www.kernellabs.com/hg/~dheitmueller/em28xx-audio-panic

Cheers,

Devin

-- 
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http://www.kernellabs.com
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Re: [linux-dvb] KWORLD 323U, kernel panic when trying to access ALSA interface

2009-09-28 Thread Devin Heitmueller 
On Mon, Sep 28, 2009 at 11:50 AM, Marios Andreopoulos
opensou...@andmarios.com wrote:
 Hello,
 I own a KWORLD 323U USB hybrid tv tuner.

 My problem is about the analog sound. When I am trying to access the alsa 
 audio interface of this device I get kernel panics.
 I use commands like these in order to transfer audio from the tuner to my 
 sound card:
 $ sox -r 48000 -c 2 -v 1 -t alsa hw:1 -t alsa hw:0
 $ arecord -D hw:1 | aplay -D hw:0 -

 When I use OSS I generally do not get kernel panics, although I have them on 
 some occasions:
 $ sox -r 48000 -c 2 -v 1 -t ossdsp /dev/dsp1 -t ossdsp /dev/dsp

 A couple of times, after playing with OSS (changing sample rate or number of 
 channels) I managed to use ALSA without a kernel panic but I didn't manage to 
 find a workflow that will allow me to use ALSA every time.

 I have tried both the in kernel drivers (kernel version 2.6.31) and the 
 latest drivers from the Hg tree as described in 
 http://www.linuxtv.org/wiki/index.php/How_to_Obtain,_Build_and_Install_V4L-DVB_Device_Drivers

 I would appreciate any help as OSS gives me a terrible audio lag and ALSA 
 -both times I managed it to work- seemed to not have any significant audio 
 lag.

 In case there is anyone interested in this tuner I will add that I haven't 
 managed to get DVB-T or the remote to work.

 My dmesg output in case it helps:

 usb 2-1.2: new high speed USB device using ehci_hcd and address 9
 usb 2-1.2: configuration #1 chosen from 1 choice
 em28xx: New device USB 2883 Device @ 480 Mbps (eb1a:e323, interface 0, class 
 0)
 em28xx #0: chip ID is em2882/em2883
 em28xx #0: i2c eeprom 00: 1a eb 67 95 1a eb 23 e3 d0 12 5c 00 6a 22 00 00
 em28xx #0: i2c eeprom 10: 00 00 04 57 4e 07 00 00 00 00 00 00 00 00 00 00
 em28xx #0: i2c eeprom 20: 46 00 01 00 f0 10 01 00 00 00 00 00 5b 1e 00 00
 em28xx #0: i2c eeprom 30: 00 00 20 40 20 80 02 20 10 01 00 00 00 00 00 00
 em28xx #0: i2c eeprom 40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 em28xx #0: i2c eeprom 50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 em28xx #0: i2c eeprom 60: 00 00 00 00 00 00 00 00 00 00 22 03 55 00 53 00
 em28xx #0: i2c eeprom 70: 42 00 20 00 32 00 38 00 38 00 33 00 20 00 44 00
 em28xx #0: i2c eeprom 80: 65 00 76 00 69 00 63 00 65 00 00 00 00 00 00 00
 em28xx #0: i2c eeprom 90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 em28xx #0: i2c eeprom a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 em28xx #0: i2c eeprom b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 em28xx #0: i2c eeprom c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 em28xx #0: i2c eeprom d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 em28xx #0: i2c eeprom e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 em28xx #0: i2c eeprom f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 em28xx #0: EEPROM ID= 0x9567eb1a, EEPROM hash = 0x0d913542
 em28xx #0: EEPROM info:
 em28xx #0:      AC97 audio (5 sample rates)
 em28xx #0:      500mA max power
 em28xx #0:      Table at 0x04, strings=0x226a, 0x, 0x
 em28xx #0: Identified as Kworld VS-DVB-T 323UR (card=54)
 em28xx #0:

 em28xx #0: The support for this board weren't valid yet.
 em28xx #0: Please send a report of having this working
 em28xx #0: not to V4L mailing list (and/or to other addresses)

 tvp5150 2-005c: chip found @ 0xb8 (em28xx #0)
 tuner 2-0061: chip found @ 0xc2 (em28xx #0)
 xc2028 2-0061: creating new instance
 xc2028 2-0061: type set to XCeive xc2028/xc3028 tuner
 usb 2-1.2: firmware: requesting xc3028-v27.fw
 xc2028 2-0061: Loading 80 firmware images from xc3028-v27.fw, type: xc2028 
 firmware, ver 2.7
 xc2028 2-0061: Loading firmware for type=BASE (1), id .
 xc2028 2-0061: Loading firmware for type=(0), id b700.
 SCODE (2000), id b700:
 xc2028 2-0061: Loading SCODE for type=MONO SCODE HAS_IF_4320 (60008000), id 
 8000.
 em28xx #0: Config register raw data: 0xd0
 em28xx #0: AC97 vendor ID = 0x
 em28xx #0: AC97 features = 0x6a90
 em28xx #0: Empia 202 AC97 audio processor detected
 tvp5150 2-005c: tvp5150am1 detected.
 em28xx #0: v4l2 driver version 0.1.2
 em28xx #0: V4L2 video device registered as /dev/video0
 em28xx #0: V4L2 VBI device registered as /dev/vbi0
 em28xx-audio.c: probing for em28x1 non standard usbaudio
 em28xx-audio.c: Copyright (C) 2006 Markus Rechberger
 tvp5150 2-005c: tvp5150am1 detected.


 Thanks in advance for any help,
 Marios Andreopoulos.

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 For V4L/DVB development, please use instead linux-media@vger.kernel.org
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Hello Marios,

I started doing some debugging em28xx audio on the HVR-950 and hit
what is probably the same panic (which occurs as soon as you run the
arecord command).  I've got a stack dump and am actively debugging the
issue.

It seems that a regression has been recently introduced.

Devin

-- 
Devin J.

Re: [linux-dvb] KWORLD 323U, kernel panic when trying to access ALSA interface

2009-09-28 Thread Marios Andreopoulos 
On Monday 28 of September 2009, Devin Heitmueller wrote:
 
 Hello Marios,
 
 I started doing some debugging em28xx audio on the HVR-950 and hit
 what is probably the same panic (which occurs as soon as you run the
 arecord command).  I've got a stack dump and am actively debugging the
 issue.
 
 It seems that a regression has been recently introduced.
 
 Devin
 
 

If there is any way I can help please let me know.
I do not know much about developing or debugging software but I believe I'm 
able to follow instructions to get a dump or do some trials if there is a need.

Thanks for the really quick reply,
Marios
--
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