Hi, I am new to alsa driver development. The first problem I encountered is I could not unload a module just inserted. I always get the following message (using snd-dummy as an example). > sudo rmmod snd-dummy ERROR: Module snd_dummy is in use I checked who is using snd-dummy. Here is what I got and I do not know what applications are using it. Module Size Used by snd_dummy 9600 2 Is there any easy way to unload the sound module? Thanks, Yiliang _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel