Alexander E. Patrakov wrote: > Timur Tabi wrote: >> Enable mmap support in the MPC8610 ASoC driver. The driver can use >> ALSA's >> default mmap functionality, it was just not enabled previously. >> >> Signed-off-by: Timur Tabi <timur@xxxxxxxxxxxxx> > > [sorry, I may be completely wrong below about the .page callback purpose > - in this case, just confirm that the testcase works] > > Hm, the "struct snd_pcm_ops fsl_dma_ops" doesn't contain the .page > callback. With saa7134-alsa, this led to the "device claims to support > mmap but actually doesn't work" bug, see the following subthread: Isn't that an ARM chip? The default MMAP handler in ALSA doesn't support ARM, but it works for PowerPC. > http://mailman.alsa-project.org/pipermail/alsa-devel/2007-October/003773.html > > > IOW: have you actually tested that the following commands work (X,Y > refer to the FSL chip)? > > aplay -M -D hw:X,Y sample.wav > arecord -f cd -M -D:X,Y capture.wav I haven't tried record, but I did try playback, and it worked. Without this patch, adding -M gives me this error: aplay: set_params:852: Access type not available After applying this patch, playback works fine. -- Timur Tabi Linux kernel developer at Freescale _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
