At Fri, 06 Oct 2006 10:04:45 +0200,
Jaap Struyk wrote:
>
> Op wo 04-10-2006, om 19:50 schreef Takashi Iwai:
>
> > Did you check the device permission?
> > Well, but it shouldn't be a problem since it was opened but the hw
> > parmas fails. Could you check via strace to see what happens?
> >
> > Also, what is your system / architecture? x86-64 and 32bit
> > compatibility problem?
>
> Both machines are AMD 32bit, running clfs-1.0, /dev is mounted on a tmp
> filesystem with udev and the problem machine is an identical (software)
> copy of the one functioning properly.
> I've notisched that on the problem machine /dev/adsp is missing so aplay
> bailing out isn't odd, but adsp missing is strange since the kernels are
> identical too.
aplay doesn't use /dev/adsp. It's an OSS device file.
You should check /dev/snd/* files.
> open("/dev/snd/pcmC0D0p", O_RDWR|O_NONBLOCK|O_LARGEFILE) = 4
> close(3) = 0
> ioctl(4, AGPIOC_ACQUIRE or APM_IOC_STANDBY, 0xbfbd989c) = 0
> fcntl64(4, F_GETFL) = 0x8802 (flags O_RDWR|O_NONBLOCK|O_LARGEFILE)
> ioctl(4, AGPIOC_INFO, 0xbfbd9a48) = 0
> ioctl(4, AGPIOC_RELEASE or APM_IOC_SUSPEND, 0xbfbd9a40) = 0
> mmap2(NULL, 4096, PROT_READ, MAP_SHARED, 4, 0x80000) = 0xb7b38000
> mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED, 4, 0x81000) = 0xb7b37000
> ioctl(4, 0xc25c4110, 0xbfbd9a70) = 0
> ioctl(4, 0xc25c4110, 0xbfbd9a70) = 0
> ioctl(4, 0xc25c4110, 0xbfbd9a70) = 0
> ioctl(4, 0xc25c4110, 0xbfbd9a70) = 0
> ioctl(4, 0xc25c4110, 0xbfbd9a70) = 0
> ioctl(4, 0xc25c4110, 0xbfbd9a70) = 0
> ioctl(4, 0xc25c4110, 0xbfbd9a70) = 0
> ioctl(4, 0xc25c4110, 0xbfbd9a70) = 0
> ioctl(4, 0xc25c4111, 0xbfbd9a70) = 0
> ioctl(4, 0xc0684113, 0xbfbd9938) = 0
> ioctl(4, 0x80144132, 0xbfbd9868) = -1 ENOTTY (Inappropriate ioctl for device)
This ioctl looks strange.
First, the size doesn't match with the actual snd_pcm_channel_info,
and this ioctl shouldn't be called from that place
(pcm_direct.c:snd_pcm_direct_initialize_slave) at all.
Please try to run gdb how the code goes, whether it reaches to
snd_pcm_hw_channel_info().
Also, try the patch below. This should fix the size mismatch.
Takashi
diff -r c64338235908 include/sound/asound.h
--- a/include/sound/asound.h Wed Oct 04 17:33:25 2006 +0200
+++ b/include/sound/asound.h Fri Oct 06 13:20:47 2006 +0200
@@ -400,7 +400,7 @@ struct sndrv_pcm_sw_params {
struct sndrv_pcm_channel_info {
unsigned int channel;
- off_t offset; /* mmap offset */
+ long offset; /* mmap offset */
unsigned int first; /* offset to first sample in bits */
unsigned int step; /* samples distance in bits */
};
-------------------------------------------------------------------------
Take Surveys. Earn Cash. Influence the Future of IT
Join SourceForge.net's Techsay panel and you'll get the chance to share your
opinions on IT & business topics through brief surveys -- and earn cash
http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV
_______________________________________________
Alsa-devel mailing list
Alsa-devel@xxxxxxxxxxxxxxxxxxxxx
https://lists.sourceforge.net/lists/listinfo/alsa-devel
