kernel.git/Documentation/sound/designs, branch master

ALSA: docs: Fix module paths in /sys

2025-02-05T12:05:00Z

It's /sys/module/ (singular), not /sys/modules/. Signed-off-by: Jakub Wilk Link: https://patch.msgid.link/20250130180823.1864-2-jwilk@jwilk.net Signed-off-by: Takashi Iwai

ALSA: docs: Fix typo

2025-02-05T12:04:53Z

Signed-off-by: Jakub Wilk Link: https://patch.msgid.link/20250130180823.1864-1-jwilk@jwilk.net Signed-off-by: Takashi Iwai

ALSA: seq: Notify UMP EP and FB changes

2025-01-12T12:12:21Z

So far we notify the sequencer client and port changes upon UMP FB changes, but those aren't really corresponding to the UMP updates. e.g. when a FB info gets updated, it's not notified but done only when some of sequencer port attribute is changed. This is no ideal behavior. This patch adds the two new sequencer event types for notifying the UMP EP and FB changes via the announce port. The new event takes snd_seq_ev_ump_notify type data, which is compatible with snd_seq_addr (where the port number is replaced with the block number). The events are sent when the EP and FB info gets updated explicitly via ioctl, or the backend UMP receives the corresponding UMP messages. The sequencer protocol version is bumped to 1.0.5 along with it. Signed-off-by: Takashi Iwai Link: https://patch.msgid.link/20250110155943.31578-9-tiwai@suse.de

ALSA: rawmidi: Show substream activity in info ioctl

2025-01-12T12:12:20Z

The UMP legacy rawmidi may turn on/off the substream dynamically depending on the UMP Function Block information. So far, there was no direct way to know whether the substream is disabled (inactive) or not; at most one can take a look at the substream name string or try to open and get -ENODEV. This patch extends the rawmidi info ioctl to show the current inactive state of the given substream. When the selected substream is inactive, info flags field contains the new bit flag SNDRV_RAWMIDI_INFO_STREAM_INACTIVE. Signed-off-by: Takashi Iwai Link: https://patch.msgid.link/20250110155943.31578-3-tiwai@suse.de

ALSA: rawmidi: Expose the tied device number in info ioctl

2025-01-12T12:12:20Z

The UMP legacy rawmidi is derived from the UMP rawmidi, but currently there is no way to know which device is involved in other side. This patch extends the rawmidi info ioctl to show the tied device number. As default it stores -1, indicating that no tied device. Signed-off-by: Takashi Iwai Link: https://patch.msgid.link/20250110155943.31578-2-tiwai@suse.de

ALSA: docs: Add toctree index entry for co-processor acceleration API

2024-10-28T15:04:57Z

Sphinx reports missing toctree entry warning for co-processor acceleration API docs: Documentation/sound/designs/compress-accel.rst: WARNING: document isn't included in any toctree Add the missing entry to fix the warning. Fixes: 04177158cf98 ("ALSA: compress_offload: introduce accel operation mode") Signed-off-by: Bagas Sanjaya Link: https://patch.msgid.link/20241028111647.17378-3-bagasdotme@gmail.com Signed-off-by: Takashi Iwai

ALSA: docs: compress-accel: Format state machine flowchart as code block

2024-10-28T15:04:55Z

Stephen Rothwell reports multiple htmldocs indentation warnings when merging sound tree for linux-next: Documentation/sound/designs/compress-accel.rst:67: ERROR: Unexpected indentation. Documentation/sound/designs/compress-accel.rst:67: WARNING: Blank line required after table. Documentation/sound/designs/compress-accel.rst:68: WARNING: Line block ends without a blank line. Documentation/sound/designs/compress-accel.rst:72: WARNING: Block quote ends without a blank line; unexpected unindent. Documentation/sound/designs/compress-accel.rst:73: WARNING: Block quote ends without a blank line; unexpected unindent. Fix these above by wrapping passthrough audio stream state machine flowchart in a literal code block. Fixes: 04177158cf98 ("ALSA: compress_offload: introduce accel operation mode") Reported-by: Stephen Rothwell Closes: https://lore.kernel.org/linux-next/20241028193242.11597640@canb.auug.org.au/ Signed-off-by: Bagas Sanjaya Link: https://patch.msgid.link/20241028111647.17378-2-bagasdotme@gmail.com Signed-off-by: Takashi Iwai

ALSA: compress_offload: introduce accel operation mode

2024-10-25T08:53:20Z

There is a requirement to expose the audio hardware that accelerates various tasks for user space such as sample rate converters, compressed stream decoders, etc. This is description for the API extension for the compress ALSA API which is able to handle "tasks" that are not bound to real-time operations and allows for the serialization of operations. For details, refer to "compress-accel.rst" document. Cc: Mark Brown Cc: Shengjiu Wang Cc: Nicolas Dufresne Cc: Amadeusz Sławiński Cc: Pierre-Louis Bossart Cc: Vinod Koul Signed-off-by: Jaroslav Kysela Reviewed-by: Amadeusz Sławiński Tested-by: Shengjiu Wang Signed-off-by: Takashi Iwai Link: https://patch.msgid.link/20241002093904.1809799-1-perex@perex.cz

ALSA: docs: Fix a typo of midi2_ump_probe option for snd-usb-audio

2023-09-12T08:00:46Z

A simple typo fix: midi2_probe => midi2_ump_probe. Fixes: febdfa0e9c8a ("ALSA: docs: Update MIDI 2.0 documentation for UMP 1.1 enhancement") Link: https://lore.kernel.org/r/20230912075944.14032-1-tiwai@suse.de Signed-off-by: Takashi Iwai

ALSA: doc: Fix missing backquote in midi-2.0.rst

2023-08-25T09:24:35Z

Fix the missing missing backquote that caused a sphinx warning: Documentation/sound/designs/midi-2.0.rst:517: WARNING: Inline interpreted text or phrase reference start-string without end-string. Fixes: e240cff9e6e9 ("ALSA: documentation: Add description for USB MIDI 2.0 gadget driver") Reported-by: Stephen Rothwell Closes: https://lore.kernel.org/r/20230825152957.18c54ae2@canb.auug.org.au Link: https://lore.kernel.org/r/20230825092351.11780-1-tiwai@suse.de Signed-off-by: Takashi Iwai