[ALSA - lib 0002287]: Segfaults all functions after snd_pcm_hw_params_get_buffer_size (params,(snd_pcm_uframes_t *) & val);

[bugtrack@alsa-project.org]

A NOTE has been added to this issue.
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<https://bugtrack.alsa-project.org/alsa-bug/view.php?id=2287> 
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Reported By:                cruiseoveride
Assigned To:                
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Project:                    ALSA - lib
Issue ID:                   2287
Category:                   0_general
Reproducibility:            always
Severity:                   crash
Priority:                   normal
Status:                     new
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Date Submitted:             07-16-2006 18:03 CEST
Last Modified:              07-17-2006 16:40 CEST
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Summary:                    Segfaults all functions after
snd_pcm_hw_params_get_buffer_size (params,(snd_pcm_uframes_t *) & val);
Description: 
I am new to Alsa and am not happy at all at the state of documentation
available.
You guys seriously need to do something about this.

I have an M-Audio Audiophile Delta 192 (ICE1724) and I want to port
envy24control for this chip, However I first need to familiar myself with
the ALSA API. So I began by looking for simple examples on how to use ALSA
API and came accross the followinf prog (Attached file test.c).

The program compiles cleanly with gcc-4.1 and runs, however after it
prints out the ..."buffer size = 8192 frames"
It segfaults.

If you slash out line 104, it resolves the issue.

My question is,

Is there a bug in this function?
Code was obtained from http://www.linuxjournal.com/article/6735
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----------------------------------------------------------------------
 Raymond - 07-17-06 16:31 
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The functions snd_ctl_*() in alsa-lib/src/control/control.c is much easier
to use than snd_hctl_*() alsa-lib/src/control/hcontrol.c

If you know gtk2 well, it is much easier to patch envy24control.c instead
of study amixer.c or alsamixer.c

You need to study the difference between ice1712 and ice1724.



----------------------------------------------------------------------
 cruiseoveride - 07-17-06 16:40 
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my gtk knowledge is fairly descent.
I understand his interface fairly well.
The only obstactle at the moment for me is getting the monitor levels.

do u know wat does "?" mean for the values of numids 10,9,11 from my
previous post?

Issue History
Date Modified  Username       Field                    Change              
======================================================================
07-16-06 18:03 cruiseoveride  New Issue                                    
07-16-06 18:03 cruiseoveride  File Added: test.c                           
07-16-06 20:38 cruiseoveride  Issue Monitored: cruiseoveride                    
07-17-06 02:44 Raymond        Note Added: 0011032                          
07-17-06 02:47 Raymond        Note Edited: 0011032                         
07-17-06 03:18 Raymond        Note Edited: 0011032                         
07-17-06 05:45 cruiseoveride  Note Added: 0011033                          
07-17-06 05:46 cruiseoveride  Note Edited: 0011033                         
07-17-06 07:31 Raymond        Note Added: 0011035                          
07-17-06 08:23 Raymond        Note Added: 0011036                          
07-17-06 08:26 Raymond        Note Edited: 0011036                         
07-17-06 14:48 cruiseoveride  Note Added: 0011039                          
07-17-06 14:59 cruiseoveride  Note Added: 0011040                          
07-17-06 16:07 Raymond        Note Added: 0011042                          
07-17-06 16:31 Raymond        Note Edited: 0011042                         
07-17-06 16:40 cruiseoveride  Note Added: 0011044                          
======================================================================




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