sound

sound

[philippe]

hi
I am new on this list and my name is Philippe.
I used to make some programs on windows but wanted to trye on linux.
I have a problem with a small prog i had done for windows witch play
sounds on the fm chip of a sound card.
But when i translate it on linux, it doesn't work any more.
It compile and link correctly(nasm), but on execution it writes:
segmentation fault!
I post you the sources at the end of this message.

I had an other question:
Where can I find bible of all the interruptions and what is the  name of
it?


Philippe




;************************************************
;*		Ecriture sur SoundBlaster		*
;*1-ecrire dans le adresse port0x388		*
;*2-attendre 12 cycles					*
;*3-ecrire dans le data port0x389			*
;*4-attendre 84 cycles					*

;compiler:
; nasm -f elf SBB.asm
; ld -s -o SBB SBB.o


section .text                           ;section declaration

                        ;we must export the entry point to the ELF
linker or
    global _start       ;loader. They conventionally recognize _start as
their
                        ;entry point. Use ld -e foo to override the
default.

_start:


;mettre tous les registres SB a zero
	mov edx,0x388	;port adresse
	mov eax,0x20		;registre sb 20
	out dx,al
	mov edx,0x389	;data port
	mov al,7
	out dx,al

mov edx,0x388	;port adresse
mov al,0x40	;registre sb 40
out dx,al
	;call WaitR
	mov edx,0x389	;data port
	mov al,0x10
	out dx,al
	;call WaitR

mov edx,0x388	;port adresse
mov al,0x60	;registre sb 20
out dx,al
	;call WaitR
	mov edx,0x389	;data port
	mov eax,0xf0
	out dx,al
	;call WaitR

	mov edx,0x388	;port adresse
	mov al,0x80		;registre sb 20
	out dx,al
	mov edx,0x389	;data port
	mov al,70
	out dx,al

mov edx,0x388	;port adresse
mov al,0x23	;registre sb 20
out dx,al
	;call WaitR
	mov edx,0x389	;data port
	mov eax,1
	out dx,al
	;call WaitR

mov edx,0x388	;port adresse
mov eax,0x43	;registre sb 20
out dx,al
	;call WaitR
	mov edx,0x389	;data port
	mov eax,00
	out dx,al
	;call WaitR

mov edx,0x388	;port adresse
mov eax,0x63	;registre sb 20
out dx,al
	;call WaitR
	mov edx,0x389	;data port
	mov eax,0xf0
	out dx,al
	;call WaitR

mov edx,0x388	;port adresse
mov eax,0x83	;registre sb 20
out dx,al
	;call WaitR
	mov edx,0x389	;data port
	mov eax,0x7f
	out dx,al
dest3:
	mov cx,0xff
dest2:

	mov edx,0x388	;port adresse
	mov al,0xa0		;frequency
	out dx,al
	mov edx,0x389	;data port
	mov al,cl
	xor al,dl
	out dx,al
;**send the sound now gogogogo go
	mov edx,0x388	;port adresse
	mov eax,0xb0	;registre sb 20
	out dx,al
	mov edx,0x389	;data port
	mov eax,0x31
	out dx,al
	call Waitc
	call Waitc
	call Waitc
	call Waitc

	loop dest2
;*******************************************************

mov edx,0x388	;port adresse
mov eax,0xb0	;registre sb 20
out dx,al
	;CHK:	;attend qu'on appuye sur la touche espace*****

	;mov ah,8
	;mov dl,0xFF
	;int 0x21
	;cmp al,' '	;espace
	;je SUITE
	;jmp CHK
;SUITE:
	mov edx,0x389	;data port
	mov eax,0
	out dx,al

;mov ax,0x4c
;int 0x21

        mov     ebx,0   ;first syscall argument: exit code
        mov     eax,1   ;system call number (sys_exit)
        int     0x80    ;call kerne



Waitc:
	push ecx
	mov ecx,0x8fff
W1:
	nop
	loop W1
	pop ecx
	ret
Waitb:
	push ecx
	mov ecx,0x1fff
W2:
	nop
	loop W2
	pop ecx
	ret

Re: sound

[xlp]

On Mon, Jun 24, 2002 at 11:51:11PM +0200, philippe wrote:
> hi
> I am new on this list and my name is Philippe.
> I used to make some programs on windows but wanted to trye on linux.
> I have a problem with a small prog i had done for windows witch play
> sounds on the fm chip of a sound card.
> But when i translate it on linux, it doesn't work any more.
> It compile and link correctly(nasm), but on execution it writes:
> segmentation fault!
> I post you the sources at the end of this message.
> 
> I had an other question:
> Where can I find bible of all the interruptions and what is the  name of
> it?
> 
> 
> Philippe
> 
> 
> 
> 
> ;************************************************
> ;*		Ecriture sur SoundBlaster		*
> ;*1-ecrire dans le adresse port0x388		*
> ;*2-attendre 12 cycles					*
> ;*3-ecrire dans le data port0x389			*
> ;*4-attendre 84 cycles					*
> 
> ;compiler:
> ; nasm -f elf SBB.asm
> ; ld -s -o SBB SBB.o
> 
> 
> section .text                           ;section declaration
> 
>                         ;we must export the entry point to the ELF
> linker or
>     global _start       ;loader. They conventionally recognize _start as
> their
>                         ;entry point. Use ld -e foo to override the
> default.
> 
> _start:
> 
> 
> ;mettre tous les registres SB a zero
> 	mov edx,0x388	;port adresse
> 	mov eax,0x20		;registre sb 20
> 	out dx,al
> 	mov edx,0x389	;data port
> 	mov al,7
> 	out dx,al
> 
> mov edx,0x388	;port adresse
> mov al,0x40	;registre sb 40
> out dx,al
> 	;call WaitR
> 	mov edx,0x389	;data port
> 	mov al,0x10
> 	out dx,al
> 	;call WaitR
> 
> mov edx,0x388	;port adresse
> mov al,0x60	;registre sb 20
> out dx,al
> 	;call WaitR
> 	mov edx,0x389	;data port
> 	mov eax,0xf0
> 	out dx,al
> 	;call WaitR
> 
> 	mov edx,0x388	;port adresse
> 	mov al,0x80		;registre sb 20
> 	out dx,al
> 	mov edx,0x389	;data port
> 	mov al,70
> 	out dx,al
> 
> mov edx,0x388	;port adresse
> mov al,0x23	;registre sb 20
> out dx,al
> 	;call WaitR
> 	mov edx,0x389	;data port
> 	mov eax,1
> 	out dx,al
> 	;call WaitR
> 
> mov edx,0x388	;port adresse
> mov eax,0x43	;registre sb 20
> out dx,al
> 	;call WaitR
> 	mov edx,0x389	;data port
> 	mov eax,00
> 	out dx,al
> 	;call WaitR
> 
> mov edx,0x388	;port adresse
> mov eax,0x63	;registre sb 20
> out dx,al
> 	;call WaitR
> 	mov edx,0x389	;data port
> 	mov eax,0xf0
> 	out dx,al
> 	;call WaitR
> 
> mov edx,0x388	;port adresse
> mov eax,0x83	;registre sb 20
> out dx,al
> 	;call WaitR
> 	mov edx,0x389	;data port
> 	mov eax,0x7f
> 	out dx,al
> dest3:
> 	mov cx,0xff
> dest2:
> 
> 	mov edx,0x388	;port adresse
> 	mov al,0xa0		;frequency
> 	out dx,al
> 	mov edx,0x389	;data port
> 	mov al,cl
> 	xor al,dl
> 	out dx,al
> ;**send the sound now gogogogo go
> 	mov edx,0x388	;port adresse
> 	mov eax,0xb0	;registre sb 20
> 	out dx,al
> 	mov edx,0x389	;data port
> 	mov eax,0x31
> 	out dx,al
> 	call Waitc
> 	call Waitc
> 	call Waitc
> 	call Waitc
> 
> 	loop dest2
> ;*******************************************************
> 
> mov edx,0x388	;port adresse
> mov eax,0xb0	;registre sb 20
> out dx,al
> 	;CHK:	;attend qu'on appuye sur la touche espace*****
> 
> 	;mov ah,8
> 	;mov dl,0xFF
> 	;int 0x21
> 	;cmp al,' '	;espace
> 	;je SUITE
> 	;jmp CHK
> ;SUITE:
> 	mov edx,0x389	;data port
> 	mov eax,0
> 	out dx,al
> 
> ;mov ax,0x4c
> ;int 0x21
> 
>         mov     ebx,0   ;first syscall argument: exit code
>         mov     eax,1   ;system call number (sys_exit)
>         int     0x80    ;call kerne
> 
> 
> 
> Waitc:
> 	push ecx
> 	mov ecx,0x8fff
> W1:
> 	nop
> 	loop W1
> 	pop ecx
> 	ret
> Waitb:
> 	push ecx
> 	mov ecx,0x1fff
> W2:
> 	nop
> 	loop W2
> 	pop ecx
> 	ret
> -
> To unsubscribe from this list: send the line "unsubscribe linux-assembly" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 

Re: sound

[Rudolf Marek]

On Mon, 24 Jun 2002, philippe wrote:

> Date: Mon, 24 Jun 2002 23:51:11 +0200
> From: philippe <pvir@freesurf.fr>
> To: Linux-assembly@vger.kernel.org
> Subject: sound
> 
> hi
> I am new on this list and my name is Philippe.
> I used to make some programs on windows but wanted to trye on linux.
> I have a problem with a small prog i had done for windows witch play
> sounds on the fm chip of a sound card.
> But when i translate it on linux, it doesn't work any more.
> It compile and link correctly(nasm), but on execution it writes:
> segmentation fault!
Maybe You have no permission to write to that ports.
Use io_perm syscall to set it.

Also this king of programming is not good choice for linux. Use kernel to 
do the dirty work. You can use a "services" (ioctls) of sound driver to 
produce sound. I think there is an tutorial on www.linuxassembly.org
for a sound too.


> I post you the sources at the end of this message.
> 
> I had an other question:
> Where can I find bible of all the interruptions and what is the  name of
> it?

It is called Ralf's Brown Inetrrupt list.
Use google.com to find it (it was on Simtelnet mirrors)


Regards

	Rudolf

> 
> 
> Philippe
> 
> 
> 
> 
> ;************************************************
> ;*		Ecriture sur SoundBlaster		*
> ;*1-ecrire dans le adresse port0x388		*
> ;*2-attendre 12 cycles					*
> ;*3-ecrire dans le data port0x389			*
> ;*4-attendre 84 cycles					*
> 
> ;compiler:
> ; nasm -f elf SBB.asm
> ; ld -s -o SBB SBB.o
> 
> 
> section .text                           ;section declaration
> 
>                         ;we must export the entry point to the ELF
> linker or
>     global _start       ;loader. They conventionally recognize _start as
> their
>                         ;entry point. Use ld -e foo to override the
> default.
> 
> _start:
> 
> 
> ;mettre tous les registres SB a zero
> 	mov edx,0x388	;port adresse
> 	mov eax,0x20		;registre sb 20
> 	out dx,al
> 	mov edx,0x389	;data port
> 	mov al,7
> 	out dx,al
> 
> mov edx,0x388	;port adresse
> mov al,0x40	;registre sb 40
> out dx,al
> 	;call WaitR
> 	mov edx,0x389	;data port
> 	mov al,0x10
> 	out dx,al
> 	;call WaitR
> 
> mov edx,0x388	;port adresse
> mov al,0x60	;registre sb 20
> out dx,al
> 	;call WaitR
> 	mov edx,0x389	;data port
> 	mov eax,0xf0
> 	out dx,al
> 	;call WaitR
> 
> 	mov edx,0x388	;port adresse
> 	mov al,0x80		;registre sb 20
> 	out dx,al
> 	mov edx,0x389	;data port
> 	mov al,70
> 	out dx,al
> 
> mov edx,0x388	;port adresse
> mov al,0x23	;registre sb 20
> out dx,al
> 	;call WaitR
> 	mov edx,0x389	;data port
> 	mov eax,1
> 	out dx,al
> 	;call WaitR
> 
> mov edx,0x388	;port adresse
> mov eax,0x43	;registre sb 20
> out dx,al
> 	;call WaitR
> 	mov edx,0x389	;data port
> 	mov eax,00
> 	out dx,al
> 	;call WaitR
> 
> mov edx,0x388	;port adresse
> mov eax,0x63	;registre sb 20
> out dx,al
> 	;call WaitR
> 	mov edx,0x389	;data port
> 	mov eax,0xf0
> 	out dx,al
> 	;call WaitR
> 
> mov edx,0x388	;port adresse
> mov eax,0x83	;registre sb 20
> out dx,al
> 	;call WaitR
> 	mov edx,0x389	;data port
> 	mov eax,0x7f
> 	out dx,al
> dest3:
> 	mov cx,0xff
> dest2:
> 
> 	mov edx,0x388	;port adresse
> 	mov al,0xa0		;frequency
> 	out dx,al
> 	mov edx,0x389	;data port
> 	mov al,cl
> 	xor al,dl
> 	out dx,al
> ;**send the sound now gogogogo go
> 	mov edx,0x388	;port adresse
> 	mov eax,0xb0	;registre sb 20
> 	out dx,al
> 	mov edx,0x389	;data port
> 	mov eax,0x31
> 	out dx,al
> 	call Waitc
> 	call Waitc
> 	call Waitc
> 	call Waitc
> 
> 	loop dest2
> ;*******************************************************
> 
> mov edx,0x388	;port adresse
> mov eax,0xb0	;registre sb 20
> out dx,al
> 	;CHK:	;attend qu'on appuye sur la touche espace*****
> 
> 	;mov ah,8
> 	;mov dl,0xFF
> 	;int 0x21
> 	;cmp al,' '	;espace
> 	;je SUITE
> 	;jmp CHK
> ;SUITE:
> 	mov edx,0x389	;data port
> 	mov eax,0
> 	out dx,al
> 
> ;mov ax,0x4c
> ;int 0x21
> 
>         mov     ebx,0   ;first syscall argument: exit code
>         mov     eax,1   ;system call number (sys_exit)
>         int     0x80    ;call kerne
> 
> 
> 
> Waitc:
> 	push ecx
> 	mov ecx,0x8fff
> W1:
> 	nop
> 	loop W1
> 	pop ecx
> 	ret
> Waitb:
> 	push ecx
> 	mov ecx,0x1fff
> W2:
> 	nop
> 	loop W2
> 	pop ecx
> 	ret
> -
> To unsubscribe from this list: send the line "unsubscribe linux-assembly" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
> 
> 
> 

Re: sound

[h-peter recktenwald]

On Mon, 24 Jun 2002 23:51:11 +0200
philippe <pvir@freesurf.fr> wrote:

> hi
> I am new on this list and my name is Philippe.
> I used to make some programs on windows but wanted to trye on linux.
> I have a problem with a small prog i had done for windows witch play
> sounds on the fm chip of a sound card.

direct port access requires 'root' rights and the concerning ports
being enabled, with sys_ioctl or sys_ioperm. - e.g <man 2 ioctl>

> But when i translate it on linux, it doesn't work any more.
> It compile and link correctly(nasm), but on execution it writes:
> segmentation fault!
> I post you the sources at the end of this message.
> 
> I had an other question:
> Where can I find bible of all the interruptions and what is the  name of
> it?

basically, there is one interrupt and several sub-codes, passed w. eax.
'the' bible doesn't exist, linux is in a somewhat 'fluid' state and, badly 
documented. Paricularly no aequivalent to 'RBIL' but, you might get some 
help from my syscall pages where i collect whatever i find fairly reliably 
documented/tested.
	http://www.lxhp.in-berlin.de/lhpsyscal.html


regards,
	hp
-- 
Linux,Assembly,Forth: http://www.lxhp.in-berlin.de/index-lx.shtml en/de
NO abusive software patents http://petition.eurolinux.org/pr/pr17.html
-
To unsubscribe from this list: send the line "unsubscribe linux-assembly" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

sound

[Christian Labisch]

Hello !

I could need your help ... I have tested the new kernel 5.10.3 and sound doesn't work with this
version.
Seems the new Intel audio drivers are the main reason. What can be done ? Do you have any ideas ?

Intel Catpt driver support is new ... This deprecates the previous Haswell SoC audio driver code
previously providing the audio capabilities.
And I am having a Haswell CPU -> Audio device: Intel Corporation Xeon E3-1200 v3/4th Gen Core
Processor HD Audio Controller (rev 06)

Regards,
Christian

Re: sound

[Greg KH]

On Wed, Dec 30, 2020 at 04:26:00PM +0100, Christian Labisch wrote:
> Hello !
> 
> I could need your help ... I have tested the new kernel 5.10.3 and sound doesn't work with this
> version.
> Seems the new Intel audio drivers are the main reason. What can be done ? Do you have any ideas ?
> 
> Intel Catpt driver support is new ... This deprecates the previous Haswell SoC audio driver code
> previously providing the audio capabilities.
> And I am having a Haswell CPU -> Audio device: Intel Corporation Xeon E3-1200 v3/4th Gen Core
> Processor HD Audio Controller (rev 06)

Can you try 5.10.4?  I think a fix for this is in there as was reported
by another user yesterday.

If not, can you run 'git bisect' on the kernels between the last good
one that worked for you, and the one that doesn't?

thanks,

greg k-h

Re: sound

[Christian Labisch]

Thank you Greg,

I am running Fedora 33 with kernel 5.9.16, which works correctly.
All stable 5.10 versions up to 5.10.3 are having the sound issue.
Once 5.10.4 will be available on koji I'm gonna test if it works.

Thanks again !

Regards,
Christian

On Wed, 2020-12-30 at 16:36 +0100, Greg KH wrote:
> On Wed, Dec 30, 2020 at 04:26:00PM +0100, Christian Labisch wrote:
> > Hello !
> > 
> > I could need your help ... I have tested the new kernel 5.10.3 and sound doesn't work with this
> > version.
> > Seems the new Intel audio drivers are the main reason. What can be done ? Do you have any ideas
> > ?
> > 
> > Intel Catpt driver support is new ... This deprecates the previous Haswell SoC audio driver code
> > previously providing the audio capabilities.
> > And I am having a Haswell CPU -> Audio device: Intel Corporation Xeon E3-1200 v3/4th Gen Core
> > Processor HD Audio Controller (rev 06)
> 
> Can you try 5.10.4?  I think a fix for this is in there as was reported
> by another user yesterday.
> 
> If not, can you run 'git bisect' on the kernels between the last good
> one that worked for you, and the one that doesn't?
> 
> thanks,
> 
> greg k-h

sound

[Christian Labisch]

Update :

I've just tested the kernel 5.10.4 from ELRepo.
Unfortunately nothing changed - still no sound.

Regards,
Christian

> Thank you Greg,
> 
> I am running Fedora 33 with kernel 5.9.16, which works correctly.
> All stable 5.10 versions up to 5.10.3 are having the sound issue.
> Once 5.10.4 will be available on koji I'm gonna test if it works.
> 
> Thanks again !
> 
> Regards,
> Christian
> 
> On Wed, 2020-12-30 at 16:36 +0100, Greg KH wrote:
> > On Wed, Dec 30, 2020 at 04:26:00PM +0100, Christian Labisch wrote:
> > > Hello !
> > > 
> > > I could need your help ... I have tested the new kernel 5.10.3 and sound doesn't work with
> > > this
> > > version.
> > > Seems the new Intel audio drivers are the main reason. What can be done ? Do you have any
> > > ideas
> > > ?
> > > 
> > > Intel Catpt driver support is new ... This deprecates the previous Haswell SoC audio driver
> > > code
> > > previously providing the audio capabilities.
> > > And I am having a Haswell CPU -> Audio device: Intel Corporation Xeon E3-1200 v3/4th Gen Core
> > > Processor HD Audio Controller (rev 06)
> > 
> > Can you try 5.10.4?  I think a fix for this is in there as was reported
> > by another user yesterday.
> > 
> > If not, can you run 'git bisect' on the kernels between the last good
> > one that worked for you, and the one that doesn't?
> > 
> > thanks,
> > 
> > greg k-h
> 

Re: sound

[Greg Kroah-Hartman]

On Wed, Dec 30, 2020 at 07:10:16PM +0100, Christian Labisch wrote:
> Update :
> 
> I've just tested the kernel 5.10.4 from ELRepo.
> Unfortunately nothing changed - still no sound.

Ah, sad.  Can you run 'git bisect' between 5.9 and 5.10 to determine the
commit that caused the problem?

thanks,

greg k-h

Sound

[John Dey]

Hello Members,

I have posted here on the same topic but haven't received any 
responses.  I do have some new information that makes me believe that 
alsa is working just fine on my PS3 using YDL 5 but needs some 
adjustments to permissions on file/sockets.  aplay and speaker-test 
works as root but not as user.  What changes do I need to make so that 
I can run aplay at user level?  Thanks.

John


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Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
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Re: Sound

[John Dey]

Hi Frederico,

Thanks for your response.  I get the following:

[robo9@robo9 dev]$ ls -l /dev/snd
total 0
crw------- 1 root root 116,  0 Feb  8 11:21 controlC0
crw------- 1 root root 116, 16 Feb  8 11:21 pcmC0D0p
crw------- 1 root root 116,  1 Feb  8 11:21 seq
crw------- 1 root root 116, 33 Feb  8 11:21 timer

which confirms my suspicion.  I changed group to audio and added user  
to that group.  I changed permission.  But still no luck.  I get the  
following from aplay:

[robo9@robo9 Desktop]$ aplay BWV535.wav
ALSA lib confmisc.c:672:(snd_func_card_driver) cannot find card '0'
ALSA lib conf.c:3492:(_snd_config_evaluate) function  
snd_func_card_driver returned error: No such device
ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
ALSA lib conf.c:3492:(_snd_config_evaluate) function snd_func_concat  
returned error: No such device
ALSA lib confmisc.c:1072:(snd_func_refer) error evaluating name
ALSA lib conf.c:3492:(_snd_config_evaluate) function snd_func_refer  
returned error: No such device
ALSA lib conf.c:3961:(snd_config_expand) Evaluate error: No such device
ALSA lib pcm.c:2099:(snd_pcm_open_noupdate) Unknown PCM default
aplay: main:547: audio open error: No such device

Any further suggestions would be appreciated.  Thanks.

John

John
On Feb 8, 2007, at 5:30 PM, Federico Grau wrote:

> *** off list
>
> Hello John,
>
> Check the required permissions with this command:
>     ls -la /dev/snd
>
> On my system I have device file permissions such as:
>     crw-rw----   1 root audio 116,  24 Sep  9  2005 pcmC0D0c
>
> Which means my non-root users need to be in the "audio" group in order  
> to use
> the audio devices.
>
> donfede
>
>
> On Thu, Feb 08, 2007 at 03:24:40PM -0500, John Dey wrote:
>> Hello Members,
>>
>> I have posted here on the same topic but haven't received any
>> responses.  I do have some new information that makes me believe that
>> alsa is working just fine on my PS3 using YDL 5 but needs some
>> adjustments to permissions on file/sockets.  aplay and speaker-test
>> works as root but not as user.  What changes do I need to make so that
>> I can run aplay at user level?  Thanks.
>>
>> John
>>
>>
>> ---------------------------------------------------------------------- 
>> ---
>> Using Tomcat but need to do more? Need to support web services,  
>> security?
>> Get stuff done quickly with pre-integrated technology to make your  
>> job easier.
>> Download IBM WebSphere Application Server v.1.0.1 based on Apache  
>> Geronimo
>> http://sel.as-us.falkag.net/sel? 
>> cmd=lnk&kid=120709&bid=263057&dat=121642
>> _______________________________________________
>> Alsa-devel mailing list
>> Alsa-devel@lists.sourceforge.net
>> https://lists.sourceforge.net/lists/listinfo/alsa-devel
>
> -- 
> Federico Grau
> Free Software Developer and Sysadmin
> Radio Free Asia
> 2025 M Street, NW
> Suite 300
> Washington, DC  20036
> 202-587-2046  Telephone
> 202-721-7468  Facsimile
> CONFIDENTIAL COMMUNICATION
> This e-mail message is intended only for the use of the addressee and  
> may
> contain information that is privileged and confidential.  Any  
> unauthorized
> dissemination, distribution, or copying is strictly prohibited.  If you
> receive this transmission in error, please contact network@rfa.org.
>


-------------------------------------------------------------------------
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Re: Sound

[Federico Grau]

chmod 660 /dev/snd/*

When you did a "chgrp audio /dev/snd/*", that corrected the group membership
issue with the users.  However, if you see the permission bits:
    crw------- 1 root root 116,  0 Feb  8 11:21 controlC0
    user  group  other
    rw-   ---    ---
Only the user has read and write permissions.  The chmod (change mode) command
up top should correct that and give you something like
    crw-rw---- 1 root root 116,  0 Feb  8 11:21 controlC0
    user  group  other
    rw-   rw-    ---

"man 1 chmod" for more details.

best to you,
donfede


On Thu, Feb 08, 2007 at 08:29:40PM -0500, John Dey wrote:
> Hi Frederico,
> 
> Thanks for your response.  I get the following:
> 
> [robo9@robo9 dev]$ ls -l /dev/snd
> total 0
> crw------- 1 root root 116,  0 Feb  8 11:21 controlC0
> crw------- 1 root root 116, 16 Feb  8 11:21 pcmC0D0p
> crw------- 1 root root 116,  1 Feb  8 11:21 seq
> crw------- 1 root root 116, 33 Feb  8 11:21 timer
> 
> which confirms my suspicion.  I changed group to audio and added user  
> to that group.  I changed permission.  But still no luck.  I get the  
> following from aplay:
> 
> [robo9@robo9 Desktop]$ aplay BWV535.wav
> ALSA lib confmisc.c:672:(snd_func_card_driver) cannot find card '0'
> ALSA lib conf.c:3492:(_snd_config_evaluate) function  
> snd_func_card_driver returned error: No such device
> ALSA lib confmisc.c:392:(snd_func_concat) error evaluating strings
> ALSA lib conf.c:3492:(_snd_config_evaluate) function snd_func_concat  
> returned error: No such device
> ALSA lib confmisc.c:1072:(snd_func_refer) error evaluating name
> ALSA lib conf.c:3492:(_snd_config_evaluate) function snd_func_refer  
> returned error: No such device
> ALSA lib conf.c:3961:(snd_config_expand) Evaluate error: No such device
> ALSA lib pcm.c:2099:(snd_pcm_open_noupdate) Unknown PCM default
> aplay: main:547: audio open error: No such device
> 
> Any further suggestions would be appreciated.  Thanks.
> 
> John
> 
> John
> On Feb 8, 2007, at 5:30 PM, Federico Grau wrote:
> 
> >*** off list
> >
> >Hello John,
> >
> >Check the required permissions with this command:
> >    ls -la /dev/snd
> >
> >On my system I have device file permissions such as:
> >    crw-rw----   1 root audio 116,  24 Sep  9  2005 pcmC0D0c
> >
> >Which means my non-root users need to be in the "audio" group in order  
> >to use
> >the audio devices.
> >
> >donfede
> >
> >
> >On Thu, Feb 08, 2007 at 03:24:40PM -0500, John Dey wrote:
> >>Hello Members,
> >>
> >>I have posted here on the same topic but haven't received any
> >>responses.  I do have some new information that makes me believe that
> >>alsa is working just fine on my PS3 using YDL 5 but needs some
> >>adjustments to permissions on file/sockets.  aplay and speaker-test
> >>works as root but not as user.  What changes do I need to make so that
> >>I can run aplay at user level?  Thanks.
> >>
> >>John
> >>
> >>
> >>---------------------------------------------------------------------- 
> >>---
> >>Using Tomcat but need to do more? Need to support web services,  
> >>security?
> >>Get stuff done quickly with pre-integrated technology to make your  
> >>job easier.
> >>Download IBM WebSphere Application Server v.1.0.1 based on Apache  
> >>Geronimo
> >>http://sel.as-us.falkag.net/sel? 
> >>cmd=lnk&kid=120709&bid=263057&dat=121642
> >>_______________________________________________
> >>Alsa-devel mailing list
> >>Alsa-devel@lists.sourceforge.net
> >>https://lists.sourceforge.net/lists/listinfo/alsa-devel
> >
> >-- 
> >Federico Grau
> >Free Software Developer and Sysadmin
> >Radio Free Asia
> >2025 M Street, NW
> >Suite 300
> >Washington, DC  20036
> >202-587-2046  Telephone
> >202-721-7468  Facsimile
> >CONFIDENTIAL COMMUNICATION
> >This e-mail message is intended only for the use of the addressee and  
> >may
> >contain information that is privileged and confidential.  Any  
> >unauthorized
> >dissemination, distribution, or copying is strictly prohibited.  If you
> >receive this transmission in error, please contact network@rfa.org.
> >

-------------------------------------------------------------------------
Using Tomcat but need to do more? Need to support web services, security?
Get stuff done quickly with pre-integrated technology to make your job easier.
Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642

Sound

[Joe Julicher]

I don't know if this has been covered yet but I have some sound questions.
(pun not intended)

I was playing with X11amp and later XMMS and noticed that there are
significant freezes in the system while the sound is playing.  For example,
if you press the button on the tool panel of gnome that retracts the panel,
it will typically retract, and play the whoosh sound.  But when you try to
extend the panel, it will freeze for a bit, and then play.  It is only
while sound is playing.  I don't think it is the X11amp software (or the
XMMS) because the xload stays low (very low).  I fiddled with the OSS
buffer sizes in the X11amp preferences but did not see any change.  XMMS
works better (the displays update in real time) but still has the pauses.
Other programs that do not depend on sound still seem to work fine and are
not paused.

System: Rev 1 G3 292mhz
	160 Mb RAM
	14 GB IDE drive

Thanks,
Joe Julicher

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