Greetings, I am trying to add mmap support to our driver (asihpi). I'm looking for a way for the driver to be notified when the application commits more data into the mmapped buffer, so I can pass that on to our DMA engine. Is there a driver operation that does this? Aside: Is it true that ALSA assumes that once DMA is started, it will run round and round the circular buffer forever (until stopped) no matter whether there is valid data there or not? Our DMA operates differently in that it only takes valid data, and then stops until more data is written to the buffer. In this case the detection of xrun condition is difficult... thanks Eliot ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier. Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-devel