Thank you for your answer. However, you information is not correct. I do not have the snd_pcm structure in the three copies of pcm.h I have in alsa-lib/include, arm-linux/alsa nor arm-linux/include. Peahaps, this is because my lib is slightly obsolete. Fortunately, today I have accidentally discovered the requested _snd_pcm structure in the alsa-lib/src/pcm/pcm_local.h. Excuse me for the fuss. BTW, we have fallen out of the mailing list. Forums are efficient only when there are many participants for two reasons: neighbors can provide more information and the same questions will be prevented from asking repeatedly. Do you think this case is different? >>Hello,>>If you get the alsa-driver sources, you can have everything you need (hope :-).>Note that in my typedefs.h, I don't have any _ at the beginin, so "struct snd_pcm" is in alsa-kernel/include/pcm.h.>>Regards,>JM>>>*********************************>This message and any attachments (the "message") are confidential and intended solely for the addressees. Any unauthorised>use or dissemination is prohibited.>Messages are susceptible to alteration. France Telecom Group shall not be liable for the message if altered, changed or>falsified.>If you are not the intended addressee of this message, please cancel it immediately and inform the sender.>******************************** -- Яндекс.Почта: объем почтового ящика не ограничен! http://mail.yandex.ru/monitoring/_______________________________________________Alsa-devel mailing listAlsa-devel@xxxxxxxxxxxxxxxxxxxx://mailman.alsa-project.org/mailman/listinfo/alsa-devel