A NOTE has been added to this issue. ====================================================================== <https://bugtrack.alsa-project.org/alsa-bug/view.php?id=2287> ====================================================================== Reported By: cruiseoveride Assigned To: ====================================================================== Project: ALSA - lib Issue ID: 2287 Category: 0_general Reproducibility: always Severity: crash Priority: normal Status: new ====================================================================== Date Submitted: 07-16-2006 18:03 CEST Last Modified: 07-19-2006 02:52 CEST ====================================================================== 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 ====================================================================== ---------------------------------------------------------------------- Raymond - 07-18-06 14:35 ---------------------------------------------------------------------- cat /proc/asound/cards cat /proc/asound/pcm lspci -vn ---------------------------------------------------------------------- cruiseoveride - 07-19-06 02:52 ---------------------------------------------------------------------- its great that ur helping me ray, but eash post i ask u at least 3 different things, u only seem to see the last one in each case... [vikky@server asound]$ cat cards 0 [ALS4000 ]: ALS4000 - Avance Logic ALS4000 Avance Logic ALS4000 at 0x7000, irq 82 1 [ICE1724 ]: ICE1724 - ICEnsemble ICE1724 ICEnsemble ICE1724 at 0x7400, irq 66 2 [CK804 ]: NFORCE - NVidia CK804 NVidia CK804 with ALC850 at 0xd5003000, irq 233 [vikky@server asound]$ cat pcm 00-00: ALS4000 DSP : : playback 1 : capture 1 01-01: IEC1724 IEC958 : IEC1724 IEC958 : playback 1 : capture 1 01-00: ICE1724 : ICE1724 : playback 1 : capture 1 02-02: Intel ICH - IEC958 : NVidia CK804 - IEC958 : playback 1 02-01: Intel ICH - MIC ADC : NVidia CK804 - MIC ADC : capture 1 02-00: Intel ICH : NVidia CK804 : playback 1 : capture 1 [vikky@server asound]$ The card physically has 3 outs S/P DIF Main Out - (1/4' TRS) seperate left and right Monitor Out - (1/4' TRS) seperate left and right it has 2 ins S/PDIR in In - (1/4' TRS) both left and right Question 1 --------------- Please could u answer this question. from amixer -c 2 cget numid=5 numid=5,iface=MIXER,name='Multi Track Peak' ; type=INTEGER,access=r----,values=22,min=0,max=255,step=0 : values=0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 which value is what? when i play something , the first two (1,2) start jumping up and down and peaking at 255. wat do the others do? As they dont change at all. Question 2 --------------- How to push noise into the capture interfaces to check monitor levels? 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 07-17-06 17:13 cruiseoveride Note Added: 0011045 07-17-06 17:34 Raymond Note Added: 0011046 07-17-06 17:56 cruiseoveride Note Added: 0011047 07-18-06 07:44 Raymond Note Added: 0011053 07-18-06 14:21 cruiseoveride Note Added: 0011057 07-18-06 14:35 Raymond Note Added: 0011060 07-19-06 02:52 cruiseoveride Note Added: 0011075 ====================================================================== ------------------------------------------------------------------------- Take Surveys. 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