On Mon, 12 Jun 2017 02:41:43 +0200, Takashi Sakamoto wrote: > > Hi, > > This is an update version of my previous patchset. > > [PATCH 0/3] ALSA: pcm: add 'applptr' event of tracepoint > http://mailman.alsa-project.org/pipermail/alsa-devel/2017-June/121657.html > > Chagnes from v1: > - rewrite change log for second patch, including content of cover letter > in my previous patchset, according to advice from maintainer. > > In design of ALSA PCM core, both of hardware-side and application-side > position on PCM buffer are maintained as a part of information for > runtime of PCM substream. In a view of ALSA PCM application, these two > positions can be updated by executing ioctl(2) with some commands. > > There's an event of tracepoint for hardware-side position; 'hwptr'. > On the other hand, no events for application-side position. > > This patchset adds a new event for this purpose; 'applptr'. When > the application-side position is changed in kernel space, this event > is probed with useful information for developers. > > The event is not probed for all of ALSA PCM applications, In detail, > please read second patch. > > Takashi Sakamoto (3): > ALSA: pcm: unify codes to operate application-side position on PCM > buffer > ALSA: pcm: add 'applptr' event of tracepoint > ALSA: pcm: use %s instead of %c for format of PCM buffer tracepoints Applied all three patches now. Thanks. Takashi _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
