linux/include/uapi/sound
David Henningsson 08fdced60c ALSA: rawmidi: Add framing mode
This commit adds a new framing mode that frames all MIDI data into
32-byte frames with a timestamp.

The main benefit is that we can get accurate timestamps even if
userspace wakeup and processing is not immediate.

Testing on a Celeron N3150 with this mode has a max jitter of 2.8 ms,
compared to the in-kernel seq implementation which has a max jitter
of 5 ms during idle and much worse when running scheduler stress tests
in parallel.

Signed-off-by: David Henningsson <coding@diwic.se>
Reviewed-by: Jaroslav Kysela <perex@perex.cz>
Link: https://lore.kernel.org/r/20210515071533.55332-1-coding@diwic.se
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2021-05-17 16:02:44 +02:00
..
sof
asequencer.h
asoc.h
asound.h
asound_fm.h
compress_offload.h
compress_params.h
emu10k1.h
firewire.h
hdsp.h
hdspm.h
sb16_csp.h
sfnt_info.h
skl-tplg-interface.h
snd_sst_tokens.h
tlv.h
usb_stream.h