Clemens Ladisch a écrit : > Sedji Gaouaou wrote: >> I have a problem with my recording driver. >> I have set up a pcm_hardware structure in which I define the format >> supported by my hardware: >> ... >> .formats = (SNDRV_PCM_FMTBIT_S16_LE >> | SNDRV_PCM_FMTBIT_S16_BE >> | SNDRV_PCM_FMTBIT_S20_3LE >> ... >> >> Then in my open function I pass it to the runtime struct. >> >> Nevertheless if I try to run arecord with this option: arecord -d 1 >> test.wav, I will have a kernel oops. >> The default format is U8, but it is not supported by my Hardware, abd it >> is not defined in my structure, so I though that it should exit arecord >> but not crash. > > The default device will do automatic sample format conversion, i.e., > your driver will see a request for S16_LE. > > This looks like a bug somewhere else in your driver. > > > Regards, > Clemens > That means that if the format is no supported, it should not return an error, but just use another format which is supported? _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
