I was wrong about the lsusb output it was my test application that could
set the device and retrieve the data in 8 and 16KHz but not on the 2.4
machine.
The snd modules I've loaded on 2.6 are:
snd_usb_audio 74817 0
snd_usb_lib 17217 1 snd_usb_audio
snd_rawmidi 24897 1 snd_usb_lib
snd_hwdep 9797 1 snd_usb_audio
snd_intel8x0m 17357 0
snd_intel8x0 32605 1
snd_ac97_codec 91360 2 snd_intel8x0m,snd_intel8x0
snd_ac97_bus 2753 1 snd_ac97_codec
snd_seq_dummy 4293 0
snd_seq_oss 32705 0
snd_seq_midi_event 8001 1 snd_seq_oss
snd_seq 51633 5
snd_seq_dummy,snd_seq_oss,snd_seq_midi_event
snd_seq_device 8781 4
snd_rawmidi,snd_seq_dummy,snd_seq_oss,snd_seq
snd_pcm_oss 42849 0
snd_mixer_oss 16833 1 snd_pcm_oss
snd_pcm 76485 5
snd_usb_audio,snd_intel8x0m,snd_intel8x0,snd_ac97_codec,snd_pcm_oss
snd_timer 23237 2 snd_seq,snd_pcm
snd 52933 15
snd_usb_audio,snd_rawmidi,snd_hwdep,snd_intel8x0m,snd_intel8x0,snd_ac97_codec,snd_seq_oss,snd_seq,snd_seq_device,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer
soundcore 10145 1 snd
snd_page_alloc 10569 3 snd_intel8x0m,snd_intel8x0,snd_pcm
And I don't know if I'm using alsa or not.
But the following works on 2.6 but not on 2.4:
void SetParams(int fd) {
int tmp;
tmp=16; /* 16 bits by sample */
if (ioctl(fd, SNDCTL_DSP_SAMPLESIZE, &tmp)<0 || tmp!=16) {
fprintf(stderr,"Error setting SNDCTL_DSP_SAMPLESIZE \n");
exit (-1);
}
tmp=0; /* Mono */
if ((ioctl(fd, SNDCTL_DSP_STEREO, &tmp)<0) || tmp!=0) {
fprintf(stderr,"Error setting SNDCTL_DSP_STEREO\n");
exit (-1);
}
tmp=16000; /* Sample Rate */
if (ioctl(fd, SNDCTL_DSP_SPEED, &tmp)<0 || tmp!=16000) {
fprintf(stderr,"Error setting SNDCTL_DSP_SPEED\n");
exit (-1);
}
}
Even though the lsusb reports only 44100 and 48000 on 2.4 and 2.6.
Niklas
On Thu, 2006-11-02 at 18:05 +0100, Clemens Ladisch wrote:
> Niklas Fondberg wrote:
> > lsusb is reporting that the usb-audio device supports 8 and 16 KHz
> > samplerates on the 2.6 kernel machine but not on the 2.4 machine.
>
> Is this the same version of lsusb?
> What are the respective lsusb outputs?
>
>
> Regards,
> Clemens
>
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