RE: [Alsa-devel] OSS mapping for ALSA controls
Shell supported by the target are ash , dash Is this causing problem ..?? Regards Pavan S -Original Message- From: Jaroslav Kysela [mailto:[EMAIL PROTECTED] Sent: Thursday, April 08, 2004 10:43 PM To: Takashi Iwai Cc: [EMAIL PROTECTED]; [EMAIL PROTECTED] Subject: Re: [Alsa-devel] OSS mapping for ALSA controls On Thu, 8 Apr 2004, Takashi Iwai wrote: At Thu, 8 Apr 2004 10:59:50 +0530, Pavana Sharma wrote: yes, I did this as root .. hmm, it works for me. # echo 'VOLUME Line Playback 0' /proc/asound/card0/oss_mixer # cat /proc/asound/card0/oss_mixer | grep VOLUME VOLUME Line Playback 0 Shell problem? The embedded devices has stripped things. Jaroslav - Jaroslav Kysela [EMAIL PROTECTED] Linux Kernel Sound Maintainer ALSA Project, SuSE Labs --- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. Learn everything from fundamentals to system administration.http://ads.osdn.com/?ad_id=1470alloc_id=3638op=click ___ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
[Alsa-devel] OSS mapping for ALSA controls
Hi, I am trying to map my ALSA driver (for ARM) controls with OSS default controls. I am using this method, to change/update assignment in /proc file. but I am not seeing any changes in my /proc/asound/card0/oss_mixer file. % echo 'VOLUME Master Playback 0' /proc/asound/card0/oss_mixer Is this the write way to do it ? or do need to follow someother procedure to map the alsa mixer ioctls with oss. Thanks Pavana S --- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. Learn everything from fundamentals to system administration.http://ads.osdn.com/?ad_id=1470alloc_id=3638op=click ___ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
RE: [Alsa-devel] OSS mapping for ALSA controls
yes, I did this as root .. -Original Message- From: Takashi Iwai [mailto:[EMAIL PROTECTED] Sent: Wednesday, April 07, 2004 11:40 PM To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Subject: Re: [Alsa-devel] OSS mapping for ALSA controls At Wed, 7 Apr 2004 19:38:18 +0530, Pavana Sharma wrote: Hi, I am trying to map my ALSA driver (for ARM) controls with OSS default controls. I am using this method, to change/update assignment in /proc file. but I am not seeing any changes in my /proc/asound/card0/oss_mixer file. % echo 'VOLUME Master Playback 0' /proc/asound/card0/oss_mixer it should be ok. did you do it as root? Takashi --- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. Learn everything from fundamentals to system administration.http://ads.osdn.com/?ad_id=1470alloc_id=3638op=click ___ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
[Alsa-devel] problem while opening device
Hi, I am running a test application on my alsa driver for arm platform.Driver is statically built. The test application calls the snd_pcm_open. With device hw:0,0 At the target I have created sound driver files with snddevices.sh In /proc/asound i have the soundcard registered as card0 . Can anyone give ideas where can be the problem ..?? this is the error msg I am getting.. snip--- ALSA lib pcm.c:1947:(snd_pcm_open_noupdate) Unknown PCM hw:0,0 FYI ..when I use cat test.raw /dev/dsp is working. Thanks Pavana S --- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. Learn everything from fundamentals to system administration.http://ads.osdn.com/?ad_id=1470alloc_id=3638op=click ___ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
RE: [Alsa-devel] problem while opening device
Hi, chekout these versions ..I am using, which version of alsa-drivers do you use [cat /proc/asound/version]? Advanced Linux Sound Architecture Driver Version 1.0.2c (Thu Feb 05 15:41:49 2004 UTC). which verison of alsa-utils do you use [aplay --version] aplay: version 1.0.3 by Jaroslav Kysela [EMAIL PROTECTED] which version of alsa-lib do you use? [$EDITOR /usr/include/alsa/version.h]? SND_LIB_VERSION_STR 1.0.3 Thanks Pavana S -Original Message- From: Florian Schmidt [mailto:[EMAIL PROTECTED] Sent: Tuesday, April 06, 2004 5:11 PM To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Subject: Re: [Alsa-devel] problem while opening device On Tue, 6 Apr 2004 16:44:56 +0530 Pavana Sharma [EMAIL PROTECTED] wrote: Hi, I am running a test application on my alsa driver for arm platform.Driver is statically built. The test application calls the snd_pcm_open. With device hw:0,0 At the target I have created sound driver files with snddevices.sh In /proc/asound i have the soundcard registered as card0 . Can anyone give ideas where can be the problem ..?? this is the error msg I am getting.. snip--- ALSA lib pcm.c:1947:(snd_pcm_open_noupdate) Unknown PCM hw:0,0 FYI ..when I use cat test.raw /dev/dsp is working. I would think that this sounds like a version mismatch. How do i come to this result? Well, alsamodules seem to be laoded fine [as you have checked /proc/asound/cards]. Oss emu is working too [as you /dev/dsp test shows]. The OSS emu [modules] don't interact with alsa-lib. But the pcm-test program uses alsa-lib.. which version of alsa-drivers do you use [cat /proc/asound/version]? which verison of alsa-utils do you use [aplay --version] which version of alsa-lib do you use? [$EDITOR /usr/include/alsa/version.h]? Flo P.S.: oh i just see you use ARM. I have no idea, if that platform has specific issues, so this post could be void afterall.. -- kT --- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. Learn everything from fundamentals to system administration.http://ads.osdn.com/?ad_id=1470alloc_id=3638op=click ___ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
[Alsa-devel] RE: Alsa-devel digest, Vol 1 #1786 - 3 msgs
Hi, I am new to ALSA driver impementation. I am registering the driver interface functions like (probe,remove) using driver_register call. I expect that the probe function will be called in which I am allocating sound card and registering the card using snd_card_register. When I compile the sound driver as a static module and boot my kernel I see that the init function in which I am registering the device is getting called but the probe function is not getting called. We see a message from sound/last.c file asla_sound_last_init fucntion where it searches snd_Cards array to find whether any sound cards are registered. As our sound card card is not registered(because probe is not getting called), we see a messaged No Soundcards found. Can someone give us some clues like why probe function is not getting called?? Regards, Pavana --- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. Learn everything from fundamentals to system administration.http://ads.osdn.com/?ad_id=1470alloc_id=3638op=click ___ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
[Alsa-devel] Question on ALSA driver init
Hi, I am new to ALSA driver impementation. I am registering the driver interface functions like (probe,remove) using driver_register call. I expect that the probe function will be called in which I am allocating sound card and registering the card using snd_card_register. When I compile the sound driver as a static module and boot my kernel I see that the init function in which I am registering the device is getting called but the probe function is not getting called. We see a message from sound/last.c file asla_sound_last_init fucntion where it searches snd_Cards array to find whether any sound cards are registered. As our sound card card is not registered(because probe is not getting called), we see a messaged No Soundcards found. Can someone give us some clues like why probe function is not getting called?? Regards, Pavana --- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. Learn everything from fundamentals to system administration.http://ads.osdn.com/?ad_id=1470alloc_id=3638op=click ___ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
[Alsa-devel] help needed-- providing control interface
hello, I am providing control interface for my driver to access from user space with functions get put . ( driver is for arm platform ) . I want to know * while creating new controls should I be allowed to create my hardware specific controls like gain, power, rate other codec specific parameters. or should I take care of mapping OSS mixer controls to ALSA mixer. * How user comes to know what controls are available the valid range of values for sliders switches. As I'm new to ALSA, can anyone explain me in detail, in this ragard. Thanks Regards Pavana S --- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. Learn everything from fundamentals to system administration.http://ads.osdn.com/?ad_id=1470alloc_id=3638op=click ___ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
[Alsa-devel] providing control interface
hello, I am providing control interface for my driver to access from user space with functions get put . ( driver is for arm platform ) . I want to know * while creating new controls should I be allowed to create my hardware specific controls like gain, power, rate other codec specific parameters. or should I take care of mapping OSS mixer controls to ALSA mixer. * How user comes to know what controls are available the valid range of values for sliders switches. As I'm new to ALSA, can anyone explain me in detail, in this ragard. Thanks Regards Pavana S --- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. Learn everything from fundamentals to system administration.http://ads.osdn.com/?ad_id=1470alloc_id=3638op=click ___ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
[Alsa-devel] List of control parameters needed
Hello, I am trying to export the controls to user space. I want to know the complete list of controls which ALSA expects the codec to support. For example, few are as below, Master Playback Volume Master Playback Switch Tone Control - Bass Tone Control - Treble Line Capture Volume Mic Capture Volume Mic Sensitivity Mic Auto Volume Mic Auto Switch Where can I get the complete list of controls which an audio codec has to support. Thanks Regards Pavana S --- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. Learn everything from fundamentals to system administration.http://ads.osdn.com/?ad_id=1470alloc_id=3638op=click ___ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
[Alsa-devel] Testing Audio driver
Hi,
I am writing Alsa driver on 2.6 kernel for arm platform.
I want to test my driver with application.
I took one sample application tried to map the functions.
*** sample application *
This program opens an audio interface for playback, configures it for
stereo, 16 bit, 44.1kHz, interleaved conventional read/write access. Then
its delivers a chunk of random data to it, and exits. It represents about
the simplest possible use of the ALSA Audio API, and isn't meant to be a
real program.
#include stdio.h
#include stdlib.h
#include alsa/asoundlib.h
main (int argc, char *argv[])
{
int i;
int err;
short buf[128];
snd_pcm_t *playback_handle;
snd_pcm_hw_params_t *hw_params;
if ((err = snd_pcm_open (playback_handle, argv[1],
SND_PCM_STREAM_PLAYBACK, 0)) 0) {
fprintf (stderr, cannot open audio device %s (%s)\n,
argv[1],
snd_strerror (err));
exit (1);
}
if ((err = snd_pcm_hw_params_malloc (hw_params)) 0) {
fprintf (stderr, cannot allocate hardware parameter structure
(%s)\n,
snd_strerror (err));
exit (1);
}
if ((err = snd_pcm_hw_params_any (playback_handle, hw_params)) 0) {
fprintf (stderr, cannot initialize hardware parameter
structure (%s)\n,
snd_strerror (err));
exit (1);
}
if ((err = snd_pcm_hw_params_set_access (playback_handle, hw_params,
SND_PCM_ACCESS_RW_INTERLEAVED)) 0) {
fprintf (stderr, cannot set access type (%s)\n,
snd_strerror (err));
exit (1);
}
if ((err = snd_pcm_hw_params_set_format (playback_handle, hw_params,
SND_PCM_FORMAT_S16_LE)) 0) {
fprintf (stderr, cannot set sample format (%s)\n,
snd_strerror (err));
exit (1);
}
if ((err = snd_pcm_hw_params_set_rate_near (playback_handle, hw_params,
44100, 0)) 0) {
fprintf (stderr, cannot set sample rate (%s)\n,
snd_strerror (err));
exit (1);
}
if ((err = snd_pcm_hw_params_set_channels (playback_handle, hw_params,
2))
0) {
fprintf (stderr, cannot set channel count (%s)\n,
snd_strerror (err));
exit (1);
}
if ((err = snd_pcm_hw_params (playback_handle, hw_params)) 0) {
fprintf (stderr, cannot set parameters (%s)\n,
snd_strerror (err));
exit (1);
}
snd_pcm_hw_params_free (hw_params);
if ((err = snd_pcm_prepare (playback_handle)) 0) {
fprintf (stderr, cannot prepare audio interface for use
(%s)\n,
snd_strerror (err));
exit (1);
}
for (i = 0; i 10; ++i) {
if ((err = snd_pcm_writei (playback_handle, buf, 128)) != 128)
{
fprintf (stderr, write to audio interface failed
(%s)\n,
snd_strerror (err));
exit (1);
}
}
snd_pcm_close (playback_handle);
exit (0);
}
**END***
**
I tried to trace back the application how i can map my driver routines with
the calls in application.
While tracing I couln't find the definition of of few functions like
snd_pcm_sw_params_set_start_threshold()
snd_pcm_hw_params_set_rate_near()
snd_pcm_hw_params()
snd_pcm_hw_params_free()
For few I could only find the prototypes.
My doubts are,
where can I find the definitions for these functions or Alsa APIs ?
Do i need to have any lib (alsa_lib) ?
If not how my driver can be accessed from application layer, I mean how
calls are mapped ?
Can anybody please help me in this regard.
Thanks
Pavana S
---
This SF.Net email is sponsored by: IBM Linux Tutorials
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RE: [Alsa-devel] Testing Audio driver
Thank you, -Original Message- From: Jaroslav Kysela [mailto:[EMAIL PROTECTED] Sent: Thursday, March 18, 2004 2:35 PM To: Pavana Sharma Cc: [EMAIL PROTECTED] Subject: Re: [Alsa-devel] Testing Audio driver On Thu, 18 Mar 2004, Pavana Sharma wrote: My doubts are, where can I find the definitions for these functions or Alsa APIs ? Do i need to have any lib (alsa_lib) ? If not how my driver can be accessed from application layer, I mean how calls are mapped ? You must use alsa-lib. We don't allow to use the syscalls directly. Also, you might look to alsa-lib/test/pcm.c code which shows you (and you can test with it) all access methods (playback only) - compile alsa-lib and type 'make pcm' in the test directory. Jaroslav - Jaroslav Kysela [EMAIL PROTECTED] Linux Kernel Sound Maintainer ALSA Project, SuSE Labs --- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. Learn everything from fundamentals to system administration.http://ads.osdn.com/?ad_id=1470alloc_id=3638op=click ___ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
[Alsa-devel] ALSA kernel-module,driver rpm --help needed
Hi, I looking for ALSA kernel-module,driver rpm for the kernel version 2.4.21-9 on i686 redhat9 .Can anyone please help me by pointing where i can find them. I have searched in http://rpm.pbone.net/ http://www.alsa-project.org/ http://alsa.opensrc.org/ http://rpmfind.net/linux/ Regs Pavana S --- This SF.Net email is sponsored by: IBM Linux Tutorials Free Linux tutorial presented by Daniel Robbins, President and CEO of GenToo technologies. Learn everything from fundamentals to system administration.http://ads.osdn.com/?ad_id=1470alloc_id=3638op=click ___ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
