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: 07-20-2006 08:05 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 - 07-20-06 05:01 ---------------------------------------------------------------------- You should find out the label of the "envy24xx" on the largest chip, the label of 48-pins ac97 chip if the chip use AC-link) or the label of the ADC/DAC (black ic) if the chip use I2S link) lspci -vn Your card should have different PCI Subsystem vendor id and device id You don't need to write from scratch, search the alsa-devel mailing archive and find out those topic about 'patch to add support for particular iec1724 card'. alsa-driver http://www.alsa-project.org/~iwai/writing-an-alsa-driver/index.html Module snd-ice1724 ------------------ Module for Envy24HT (VT/ICE1724), Envy24PT (VT1720) based PCI sound cards. * MidiMan M Audio Revolution 5.1 * MidiMan M Audio Revolution 7.1 * AMP Ltd AUDIO2000 * TerraTec Aureon 5.1 Sky * TerraTec Aureon 7.1 Space * TerraTec Aureon 7.1 Universe * TerraTec Phase 22 * TerraTec Phase 28 * AudioTrak Prodigy 7.1 * AudioTrak Prodigy 7.1LT * AudioTrak Prodigy 192 * Pontis MS300 * Albatron K8X800 Pro II * Chaintech ZNF3-150 * Chaintech ZNF3-250 * Chaintech 9CJS * Chaintech AV-710 * Shuttle SN25P model - Use the given board model, one of the following: revo51, revo71, amp2000, prodigy71, prodigy71lt, prodigy192, aureon51, aureon71, universe, k8x800, phase22, phase28, ms300, av710 This module supports multiple cards and autoprobe. Note: The supported board is detected by reading EEPROM or PCI SSID (if EEPROM isn't available). You can override the model by passing "model" module option in case that the driver isn't configured properly or you want to try another type for testing. ---------------------------------------------------------------------- cruiseoveride - 07-20-06 08:05 ---------------------------------------------------------------------- i have no idea wat ur looking for, ill photograph the card and upload the file. u want me to compare this card to existing card's driver? wat are these board models? Bare with me pls, 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 07-19-06 03:27 Raymond Note Added: 0011076 07-19-06 06:21 Raymond Note Added: 0011080 07-19-06 17:43 cruiseoveride Note Added: 0011090 07-19-06 17:50 cruiseoveride File Added: chip.jpg 07-20-06 04:22 Raymond Note Added: 0011107 07-20-06 05:01 Raymond Note Edited: 0011107 07-20-06 08:05 cruiseoveride Note Added: 0011112 ====================================================================== ------------------------------------------------------------------------- Take Surveys. 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