Thank you, Clemens. 2007/8/10, Clemens Ladisch <cladisch@xxxxxxxxxxxx>: > Wei Kai wrote: > > I checked the include/sound/pcm.h in kernel and find this problem, it > > seemed strange, so many codecs support the 24000 sample rate, why > > there is no such definition. > > When the header file was created many years ago, 24000 Hz wasn't a > common sample rate. > > To support a sample rate that is not in that list of predefined rates, > your driver should set the RATE_KNOT bit and call the > snd_pcm_hw_constraint_list() function; see the section "Constraints" in > the "Writing an ALSA Driver" document. > > > HTH > Clemens > _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
