--- Clemens Ladisch <[EMAIL PROTECTED]> 的正文：> Roc Wu wrote: > > > # ./aplay -t wav -f U8 -r 22050 alarm.wav > > > Playing WAVE 'alarm.wav' : Unsigned 8 bit, Rate > 22050 Hz, Mono > > > ALSA lib > pcm_plug.c:727:(snd_pcm_plug_hw_refine_schange) > > > Unable to find an usable access for 'default' > > > aplay: set_params:832: Sample format non > available > > > > > > And the kernel driver will dump out the message > as below: > > > Badness in aaci_pcm_close at > sound/arm/aaci.c:404 > > This seems to be a bug in the sound driver. > > However, arm/aaci.c is not part of the official ALSA > distribution. > AFAIK it's a patch written by Russell King. > > > HTH > Clemens > Yes. Thanks for your replay. Maybe I should send the mail to arm-linux mailist.
PS. Could you recommend some docs about the ALSA internals and Low level drivers? There are too many docs in the www.alsa-project.org, I am an embedded Linux driver developer, so which one is suit for me? Thanks a lot Best Regards _________________________________________________________ Do You Yahoo!? 嫌邮箱太小？雅虎电邮自助扩容！ http://cn.rd.yahoo.com/mail_cn/tag/10m/*http://cn.mail.yahoo.com/event/10m.html ------------------------------------------------------- This SF.Net email is sponsored by the new InstallShield X. >From Windows to Linux, servers to mobile, InstallShield X is the one installation-authoring solution that does it all. Learn more and evaluate today! http://www.installshield.com/Dev2Dev/0504 _______________________________________________ Alsa-devel mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/alsa-devel
