From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugtrack@alsa-project.org Subject: [ALSA - driver 0000758]: Full duplex is not working in OSS emulation. Date: Wed, 14 Sep 2005 16:16:46 +0200 Message-ID: <5f23ba12048a7f96f75f442eccf60905@bugtrack.alsa-project.org> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Return-path: Received: from bugtrack.alsa-project.org (gate.perex.cz [82.113.61.162]) by alsa.jcu.cz (ALSA's E-mail Delivery System) with ESMTP id D02071A3 for ; Wed, 14 Sep 2005 16:16:46 +0200 (MEST) Sender: alsa-devel-admin@lists.sourceforge.net Errors-To: alsa-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org The following issue has been set as RELATED TO issue 0000521. ====================================================================== ====================================================================== Reported By: croiset Assigned To: ====================================================================== Project: ALSA - driver Issue ID: 758 Category: PCI - RME 96 Reproducibility: always Severity: major Priority: normal Status: new Distribution: Redhat 7.2 Kernel Version: 2.4.7 ====================================================================== Date Submitted: 12-29-2004 10:15 CET Last Modified: 09-14-2005 16:16 CEST ====================================================================== Summary: Full duplex is not working in OSS emulation. Description: If I play something with one player, I am unable to record something on the same device. The same thing ispossible with the other cards I have. ====================================================================== Relationships ID Summary ---------------------------------------------------------------------- related to 0000521 Jack + Alsa not working in full duplex,... ====================================================================== ---------------------------------------------------------------------- tiwai - 12-29-04 14:17 ---------------------------------------------------------------------- I guess the first OSS app opens the file with O_RW? ---------------------------------------------------------------------- croiset - 12-29-04 14:54 ---------------------------------------------------------------------- I use nas for playing. This application open the device in write mode only. cf nas.conf option : readwrite "no" # for open(device, O_WRONLY|O_SYNC, 0666); This exact configuration is working with all cards I have except the RME 96/8. The recorder open the device like that : open(_opt->device, O_RDONLY|O_NONBLOCK ) ---------------------------------------------------------------------- tiwai - 12-29-04 17:39 ---------------------------------------------------------------------- Hmm, I don't see problems in rme96.c. Could you check whether the devices are really opened in O_WRONLY and O_RDONLY? Maybe strace can show better. Also, you can check /proc/asound/card0/pcm*/sub0/* files as the current state, too. ---------------------------------------------------------------------- croiset - 12-29-04 17:56 ---------------------------------------------------------------------- For the RO and WO only I am sure because I play and record via a symlink, so I change the symlink to a new card and restart the two processes and it works ! For the recorder and nas I am sure, I verify in my logs in the debug mode. I have this kind of information (if you need some more information do not hesitate : # cat /proc/asound/card0/pcm0p/sub0/hw_params access: RW_INTERLEAVED format: S16_LE subformat: STD channels: 2 rate: 44100 (44100/1) period_size: 512 buffer_size: 16384 tick_time: 10000 OSS format: S16_LE OSS channels: 2 OSS rate: 44100 OSS period bytes: 2048 OSS periods: 32 OSS period frames: 512 ------------ # cat /proc/asound/card0/pcm0p/sub0/sw_params tstamp_mode: NONE period_step: 1 sleep_min: 0 avail_min: 1 xfer_align: 1 start_threshold: 1 stop_threshold: 16384 silence_threshold: 528 silence_size: 528 boundary: 1073741824 -------------- # cat /proc/asound/card0/pcm0c/sub0/hw_params closed -------------- # cat /proc/asound/card0/pcm0c/sub0/info card: 0 device: 0 subdevice: 0 stream: CAPTURE id: Digi96 IEC958 name: Digi96 IEC958 subname: subdevice #0 class: 0 subclass: 0 subdevices_count: 1 subdevices_avail: 1 ------------------------ # cat /proc/asound/card0/pcm0c/sub0/sw_params closed ------------------------ # cat /proc/asound/card0/pcm0c/sub0/status closed ---------------------------------------------------------------------- croiset - 12-29-04 18:18 ---------------------------------------------------------------------- I forget one important i think. NAS use the dsp in playback mode I don't record anything (PS : I want to record in analog mode). # cat /proc/asound/card0/pcm0p/sub0/info card: 0 device: 0 subdevice: 0 stream: PLAYBACK id: Digi96 IEC958 name: Digi96 IEC958 subname: subdevice #0 class: 0 subclass: 0 subdevices_count: 1 subdevices_avail: 0 ---------------------------------------------------------------------- croiset - 01-03-05 16:30 ---------------------------------------------------------------------- I made some more tests and the error after an ioctl. line_fd = open(_opt->device, O_RDONLY|O_NONBLOCK ) -> ok fcntl(line_fd,F_SETFD,FD_CLOEXEC) -> ok ioctl(line_fd, SNDCTL_DSP_SETFRAGMENT, &frag) -> ok ioctl(line_fd, SNDCTL_DSP_SETFMT, &afmt) -> return -1 errno = 16 (Device or resource busy) ioctl(line_fd, SNDCTL_DSP_CHANNELS, &channels) -> return -1 errno = 16 (Device or resource busy) ioctl(line_fd, SNDCTL_DSP_SPEED, &rate) -> return -1 errno = 16 (Device or resource busy) read(line_fd, audio_data, size) -> return -1 errno = 16 (Device or resource busy) Issue History Date Modified Username Field Change ====================================================================== 12-29-04 10:15 croiset New Issue 12-29-04 10:15 croiset Distribution => Redhat 7.2 12-29-04 10:15 croiset Kernel Version => 2.4.7 12-29-04 14:17 tiwai Note Added: 0002998 12-29-04 14:54 croiset Note Added: 0003000 12-29-04 17:39 tiwai Note Added: 0003004 12-29-04 17:56 croiset Note Added: 0003005 12-29-04 17:59 croiset Note Added: 0003006 12-29-04 18:05 croiset Note Edited: 0003006 12-29-04 18:18 croiset Note Edited: 0003006 01-03-05 16:30 croiset Note Added: 0003067 09-14-05 16:16 jdthood Relationship added related to 0000521 ====================================================================== ------------------------------------------------------- SF.Net email is sponsored by: Tame your development challenges with Apache's Geronimo App Server. 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