I got many patches integrated upstream, still more to go.
Core
Release v1.1.1
Define some types if missing
Define EBADFD in terms of EBADF if it doesn't exist.
Control API
control: keep consistent usage of assertion
control: initialize element channel values according to identification number at adding a new element
control: fulfill a description about element type with integer64
coverity fixes
control: add missing asserts to ctl_elem_set functions
PCM API
pcm: fix 'unable to create IPC shm instance' caused by fork from a thread
Introduce bswap.h for portable definitions of byte swap macros.
coverity fixes
pcm_hw: fix possible memory leak (coverity)
pcm: simple: Fix asserts
Sequencer API
seq: Provide sequencer sound card number / PID via alsa-lib
Timer API
Only use F_SETSIG fcntl where it exists.
Topology API
topology: Add support for widget byte controls
topology: add support for CTL access flags to config file
topology: add support for pasring external ops in conf files
topology: Add ops to bytes control.
topology: Remove unnecessary includes
topology: fix debug output to print correct "max" value.
topology: Quit and show error message on big-endian machines
topology: Not compare a for loop iterator with ABI __le32 variables
topology: Fix comparison of unsigned expression < 0
topology: Remove unused variables
topology: Remove unused function write_data_block()
topology: open topology files with O_TRUNC
topology: Add missing include sys/stat.h
Use Case Manager API
Use alphasort where versionsort is not available.
/include/Makefile.am
Introduce bswap.h for portable definitions of byte swap macros.
Define some types if missing
ALSA Server
coverity fixes
Compatibility routines
Add more compatibility defines.
Introduce bswap.h for portable definitions of byte swap macros.
Define some types if missing
Configuration
Use alphasort where versionsort is not available.
config files - do not include ucm/topology configuration when not requested
Kernel Headers
seq: Provide sequencer sound card number / PID via alsa-lib
Update include/sound/asequencer.h from 4.6-pre kernel uapi
Update include/sound/asound.h from 4.6-pre kernel uapi
Core
Release v1.1.0
support building w/out System V shared memory
fix _GNU_SOURCE handling & header inclusion
build: Do not try to detect cross-compiler
core: add convenience macros to local.h
conf: topology: Add topology file for broadwell audio DSP
topology: autotools: Add build support for topology core
Replace list.h with its own version
Allow hint for ctl, hwdep, timer and seq
conf/ucm: Add Makefile.am for broadwell-rt286 ucm config
Config API
Replace unsafe characters with _ in card name
Control API
control: Allow cset'ing specific values in the multi-value case
Allow hint for ctl, hwdep, timer and seq
namehint: Fix bad free with invalid iface name
namehint: Fix the listing without device number
namehint: Fix invalid list access in snd_device_name_hint()
HWDEP API
hwdep: add FireWire digi00x/tascam driver support
Allow hint for ctl, hwdep, timer and seq
PCM API
support building w/out System V shared memory
pcm: drop unused sys/shm.h inclusion
move page helpers to common code
pcm: dmix: Handle slave PCM xrun and unexpected states properly
pcm: ladspa: Fix segfault due to a wrong channel reference
pcm: route: Remove bogus ! in snd_config_get_id() checks
pcm: ioplug,extplug: Fix logic errors in type checks
pcm: Fix doxygen for two enums
pcm: restore hw params on set latency failed
pcm: add support for new STATUS_EXT ioctl
pcm: add support for get/set_audio_htstamp_config
pcm: add helper functions to query timestamping capabilities
PCM: snd_pcm_xxxx_drain() maybe blocked after suspend and resume
pcm: Fix snd_pcm_status() for dmix & co
pcm: Don't assert in _snd_pcm_hw_params_internal()
pcm: Remove assert() from snd_pcm_hw_params_slave()
Allow hint for ctl, hwdep, timer and seq
RawMidi API
Allow hint for ctl, hwdep, timer and seq
Timer API
fix _GNU_SOURCE handling & header inclusion
Topology API
topology: Add missing prototypes for new functions
topology: remove little endian type from userspace header
topology: Add C API support for PCM
topology: Add C API support for BE and CC Links.
topology: ABI - Change stream formats to a bitwise flag
topology: ABI - Separate PCM & BE/CC link support and bump ABI version to 4
topology: Add API to set a vendor specific version number
topology: pcm: Remove unused variables
topology: parser: Add missing return value to snd_tplg_set_manifest_data()
topology: data: Fix wrong size check in tplg_parse_data_hex()
topology: ctl: Fix access type checks
topology: builder: Fix possibly uninitialized variable in write_elem_block()
topology: A API calls to directly build topology data from templates
topology: Add C templates structure for building topology from C programs
core: add convenience macros to local.h
topology: rename OBJECT_TYPE_ to SND_TPLG_TYPE_
topology: print error prefix on error message.
topology: treat all DAPM controls types the same when copying
topology: update ABI to improve support for different TLV object types.
topology: Add support for writing manifest private data.
topology: Add element ID so we can look up references by name.
topology: fix element object type is switch()
topology: Fix typos
topology: Fix missing inclusion of ctype.h
topology: autotools: Add build support for topology core
topology: Add binary file builder.
topology: Add Channel map parser.
topology: Add CTL parser
topology: Add DAPM object parser
topology: Add private data parser
topology: Add operations parser
topology: Add PCM parser.
topology: Add text section parser.
topology: Add topology core parser.
Use Case Manager API
fix _GNU_SOURCE handling & header inclusion
ucm: docs: Fix doxygen formatting for UCM main page.
ucm: allow multiple devices in JackHWMute
ucm: improve jack configuration documentation
ucm: reformat snd_use_case_get() doc
ucm: document some standard values
/include/Makefile.am
topology: autotools: Add build support for topology core
/src/Makefile.am
topology: autotools: Add build support for topology core
Configuration
move page helpers to common code
fix _GNU_SOURCE handling & header inclusion
conf: topology: Add topology file for broadwell audio DSP
Replace unsafe characters with _ in card name
surround41/50.conf: Use chmap syntax for better flexibility
conf/ucm: broadwell-rt286: change to set capture volume and capture device
conf: Add hint descriptions to ctl, hwdep, seq and timer devices
Allow hint for ctl, hwdep, timer and seq
conf/ucm: broadwell-rt286: change to use the correct jack kcontrol name
USB-audio: Sound Blaster HD iec958 is on device 1
conf/ucm: Add Makefile.am for broadwell-rt286 ucm config
conf/ucm: broadwell-rt286: add ucm config
Documentation
topology: doxygen: Add doxygen support for topology core.
docs: Add UCM link to main doxygen page.
ucm: docs: fix doxygen exclude patch for UCM local header
Kernel Headers
topology: ABI - Rename dai_elems to pcm_elems in manifest
topology: ABI - Change stream formats to a bitwise flag
topology: ABI - Use __le32 instead of __u32 in snd_soc_tplg_dapm_widget
topology: ABI - Remove unused struct snd_soc_tplg_stream_config
topology: ABI - Remove tdm_slot & dai_fmt from snd_soc_tplg_stream
topology: ABI - Separate PCM & BE/CC link support and bump ABI version to 4
topology: ABI - Add name element to snd_soc_tplg_stream
hwdep: add FireWire digi00x/tascam driver support
topology: Add ops support to byte control objects.
topology: update ABI to improve support for different TLV object types.
topology: uapi: Add UAPI headers for topology ABI
Sync include/sound/asound.h with 4.1 kernel
SHM helpers
support building w/out System V shared memory
Test/Example code
test: audio_time: show report validity and accuracy
test: fix audio_time with new get/set audio_tstamp_config
test/pcm_min: Fix error messages
test/pcm: Fix generated values with float PCM format
build on MacOS, OpenBSD, and Bitrig.
Note: There's enough stylized goop here that lots of packages will
need to know about that we should consider creating a USE_FEATURES for
sys/endian.h.
Changelog:
Changelog between 1.0.27.1 and 1.0.27.2 releases
Core
Release v1.0.27.2
Allow specifying the max number of cards
Control API
Allow specifying the max number of cards
HWDEP API
Allow specifying the max number of cards
PCM API
pcm_direct: fix SEGFAULT when getgrnam_r() returns 0 and pgrp is NULL
pcm_hw: Fix buffer overflow in chmap
chmap: Always succeed setting the map to what it already is
pcm_direct: fix the memory leak when parsing the slave definitions
pcm_plugin: Fix return value of snd_pcm_rewind
pcm_hw: Remove unused fields in struct
pcm: Fix typo in documentation: PREPARE → PREPARED.
Use Case Manager API
ucm: Fix segfault when device argument is missing from _sw{dev, mod}
Configuration
Allow specifying the max number of cards
Changelog between 1.0.27 and 1.0.27.1 releases
Core
Release v1.0.27.1
Remove an obsolete macro in configure.in
Add AM_MAINTAINER_MODE.
conf/ucm: Set up for installation
Add definition of __inline__ for non-GCC
Use __inline__ for exported headers
Control API
Use __inline__ for exported headers
PCM API
Use __inline__ for exported headers
bring pcm.h and pcm.c in sync with the kernel list
pcm.c: fix indentation
RawMidi API
Fix several spelling errors for “writable” and derivatives.
Sequencer API
seqmid: restore sequencer address prefix match feature
ALSA Lisp
Fix several spelling errors for “writable” and derivatives.
Configuration
conf/ucm: DAISY-I2S: Set default filter mode for HiFi.
conf/ucm: Set up for installation
conf/ucm: tegraalc5632: add UCM config from Ubuntu
conf/ucm: SDP4430: add UCM config from Ubuntu
conf/ucm: PandaBoardES: add UCM config from Ubuntu
conf/ucm: PandaBoard: add UCM config from Ubuntu
conf/ucm: DAISY-I2S: add Samsung ARM Chromebook UCM config from ChromeOS
conf - Add Scarlett 2i2 USB to S/PDIF blacklist
Dynamic Loader helpers
Compile in the ALSA search path instead of relying on ld.so.conf.
Fix doubly call of dlclose() in dlobj caching code
External PCM Filter Plugin SDK
Use __inline__ for exported headers
Changelog between 1.0.26 and 1.0.27 releases
Core
Release v1.0.27
all places: doxygen cleanups
Add sys/types.h to include list
Add snd_lib_error_set_local() to install a thread-local error handler.
configure: do not detect incorrect cross-compiler
Fix endian check in local.h
configure: Quite AM_CONDITIONAL() arguments
Add workaround for conflicting snd_seq_event_t definitions
Merge kernel uapi/sound/asound.h and asequencer.h
Control API
control: enhance doc for snd_ctl_ascii_value_parse() function
control, pcm: implement snd_ctl_abort() and snd_pcm_abort() functions
Add workaround for conflicting IEC958 controls for HD-audio
control: Simplify using snd_config_get_bool()
snd_device_name_hint(): do not use global snd_config.
snd_device_name_hint(): do not change the global error handler.
Merge kernel uapi/sound/asound.h and asequencer.h
Implement the channel mapping API
Mixer API
all places: doxygen cleanups
snd_mixer_poll_descriptors_revents should loop over pollfd
mixer: Don't build simple_abst when no libdl is available
Reduce compilation warnings
PCM API
pcm: direct plugins: do more safe IPC semaphore handling
all places: doxygen cleanups
control, pcm: implement snd_ctl_abort() and snd_pcm_abort() functions
pcm: fix typo, should be SND_PCM_STATE_PREPARED.
pcm: fix and optimize snd_pcm_areas_copy function
snd_pcm_direct_parse_open_conf(): use thread-safe getgrnam_r()
PCM: Fix conflict of _snd_pcm_hw_params definitions
PCM: shut up a compile "unused parameter" compile warning in pcm_multi.c
PCM: Add more chmap definitions for UAC2
Merge kernel uapi/sound/asound.h and asequencer.h
PCM: Avoid busy loop in snd_pcm_write_areas() with rate plugin
Reduce compilation warnings
PCM: Fix memory leak for pcm empty and asym plugins
pcm: support for audio timestamps
PCM: Fix the invalid snd_pcm_close() calls in rate plugin
PCM: Fix infinite loop in htimestamp of dmix, dsnoop and dshare plugins
PCM: Fill SND_CHMAP_NA to silent channels in route plugin
PCM: A few doxygen fixes for chmap stuff
PCM: Fix the conversion from string to chmap position
PCM: Define MONO and other channel map positions
PCM: Use compounds for overriding / enhancing chmaps
PCM: Add the missing query_chmaps for route plugin
PCM: Add chmap options to hw and null plugins
PCM: Add query_chmaps support to multi plugin
PCM: Add snd_pcm_chmap_long_name()
PCM: Add SND_CHMAP_API_VERSION definition
PCM: Add string conversion helper functions for chmap
PCM: Fix prefix for snd_pcm_chmap_type enum members
PCM: Implement snd_pcm_query_chmaps_from_hw()
PCM: Introduce snd_pcm_chmap_t and snd_pcm_chmap_query_t
Add SND_CHMAP_NA and bit flag definitions
Follow channel position definitions to mixer channel in mixer.h
Define channel map position enum in pcm.h
Cache the chmap operation errors
Implement get_chmap/set_chmap for PCM extplug/ioplug plugins
Implement get_chmap/set_chmap for PCM plug, route and multi plugins
Implement the channel mapping API
Sequencer API
Merge kernel uapi/sound/asound.h and asequencer.h
Reduce compilation warnings
Timer API
Merge kernel uapi/sound/asound.h and asequencer.h
Use Case Manager API
ucm: Set uc_mgr->ctl to NULL after closing it.
ALSA Lisp
Reduce compilation warnings
Configuration
USB-audio: Add "HP Digital Stereo Headset" to SPDIF blacklist
Add workaround for conflicting IEC958 controls for HD-audio
conf: Fix a memory access violation resulting from improper error propogation
conf: Add chmap definitions to TRIDENT and SI7018 configurations
PCM: Use compounds for overriding / enhancing chmaps
Add chmap override definitions for Emu10k1, Audigy and Audigy2 cards
Documentation
all places: doxygen cleanups
Dynamic Loader helpers
Optimize NULL check in snd_dlobj_cache_put()
Clean up dlobj cache only when no user is present
Error handler
Add snd_lib_error_set_local() to install a thread-local error handler.
External Control Plugin SDK
all places: doxygen cleanups
External PCM Filter Plugin SDK
PCM: Introduce snd_pcm_chmap_t and snd_pcm_chmap_query_t
Implement get_chmap/set_chmap for PCM extplug/ioplug plugins
External PCM I/O Plugin SDK
PCM: Introduce snd_pcm_chmap_t and snd_pcm_chmap_query_t
Implement get_chmap/set_chmap for PCM extplug/ioplug plugins
Kernel Headers
PCM: Add more chmap definitions for UAC2
Merge kernel uapi/sound/asound.h and asequencer.h
pcm: fix 64-bit SNDRV_PCM_IOCTL_STATUS ABI breakage
pcm: support for audio timestamps
PCM: Define MONO and other channel map positions
Add SND_CHMAP_NA and bit flag definitions
Follow channel position definitions to mixer channel in mixer.h
Implement the channel mapping API
Test/Example code
pcm: support for audio timestamps
test: add audio_time
test/chmap: Fix wrong malloc size
PCM: Add string conversion helper functions for chmap
Fix duplicated channel entry in test/chmap.c
Add SND_CHMAP_NA and bit flag definitions
Follow channel position definitions to mixer channel in mixer.h
Add test/chmap program
Changelog between 1.0.25 and 1.0.26 releases
Core
Release v1.0.26
Control API
ucm: Improve cset command parsing
control: Use strcpy() instead of stpcpy()
hctl: Remove a useless assert
Fix the binary compatibility of ext-ctl plugin with protocol 1.0.0
tlv: improve robustness of raw value ranges
control_external: Add ability to specify TLV data.
Mixer API
mixer: Remove redundant CHECK_ENUM() from snd_mixer_selem_is_enum*()
PCM API
PCM: plug: Move fast_ops copy after slave configuration.
PCM: Allow to run older version of extplug plugin
pcm_dsnoop: comment fall-through in next "case"
pcm: add missing "break" in "switch"
doc: Fix typo in PCM formats
Sequencer API
seqmid - more descriptions on snd_seq_parse_address() behavior
Use Case Manager API
ucm: Add const to execute_cset() argument
ucm: Improve cset command parsing
ucm: Return NULL from get_list0() and get_list20() in case of empty lists.
ucm: Add missing pthread.h include
build: Fallback to alphasort() if versionsort() isn't available
ucm: Handle repeat device and modifier enables/disables
Configuration
build: Fallback to alphasort() if versionsort() isn't available
conf: Add more USB devices to S/PDIF blacklist
Fix invalid long long format specifier
alsa-lib conf: Add two more USB devices to iec958 blacklist
alsa-lib conf: block S/PDIF access for Sennheiser USB headset
USB-Audio: Fixup card name for Logitech web camera
USB-Audio: Blacklist iec958 for some USB devices
conf/pcm: Add support for Echo3G devices. Thanks to unimatrix.
External Control Plugin SDK
Fix the binary compatibility of ext-ctl plugin with protocol 1.0.0
control_external: Add ability to specify TLV data.
Test/Example code
test/latency.c: Fix string argument to getopt_long, so now it handles -E and -B
Fix invalid long long format specifier
Utils
build: Disable another compile chack with --disable-alsatest
Changelog between 1.0.24 and 1.0.25 releases
Core
Release v1.0.25
Introduce --with-pkgconfdir, add 64-bit defaults to gitcompile
conf: Allow for a directory to be given as a config file.
configure: Fail when the user attempts to compile shared and static libs
Release v1.0.24.1
Control API
Document strdup allocation in snd_card_get_name family
Improve snd_device_name_hint documentation
control: add snd_ctl_elem_add_enumerated()
Add snd_{ctl|pcm}_open_fallback() functions
Fix missing error code in snd_ctl_hw_open()
ctlparse: Respect softfloat configure option
Device Name API
Remove docs for snd_names_list and snd_names_list_free
HWDEP API
alsa-lib: fixed coverity reported issues under "FORWARD_NULL" checker.
Mixer API
Fix compile warnings
Fix alsa-lib to regard 3D control - Depth as Playback Controls
PCM API
Improve hw_params documentation
Search-and-replace improve documentation language
pcm:mmap_emul: Fix sw_params and others in bypass mode
src/pcm/pcm_mmap.c: add missing free
src/pcm/pcm_multi.c: add missing free
src/pcm/pcm_ladspa.c: add missing free
src/pcm/pcm_rate.c: add missing free
pcm: recalculate all rules after changing hw_params flags
Add snd_{ctl|pcm}_open_fallback() functions
alsa-lib: fixed coverity reported issues under "FORWARD_NULL" checker.
Use Case Manager API
ucm: add another sequence 'msleep'
ucm: tivial code style fix
ucm: fix seg fault in execute_cset()
UCM: get: Implement 'exact' value retrieval
UCM: snd_use_case_get: Don't segfault when no current verb
UCM: Allow querying of {Supported,Conflicting}Devices
UCM: Disallow gets of undefined system properties
UCM: Implement ConflictingDevices, add device list to devices
UCM: Deprecate index on Section{Device,Modifier}
UCM: Fix deadlock following failed get _verb
UCM: Fix typo in error message
UCM: fix memory leak when executing cset commands
UCM: Fix LGPL licence ("how to receive" part referred GPL instead LGPL)
UCM: Fix empty get_list - initialize returned pointer to NULL
UCM: comment fixes and fix myvalue initialization fix in add_values()
alsa-lib: ucm: allow values to be read from devices
ucm: add more error messages for cdev and cset commands
ucm: allow bind modifier to specific instances, other fixes
ucm: make verb comments optional
Configuration
conf: Allow for a directory to be given as a config file.
Define "sysdefault" PCM and control
emu10k1.conf - Fix no sound problem when using SB Live! Platinum
Specficy subdevice 0 for front/surround* of HDA-Intel.conf
alsa-lib: fixed coverity reported issues under "FORWARD_NULL" checker.
HDA-Intel.conf - Fix low mic volume due to pulseaudio using "front" device for playback and capture
EMU10K1.conf: Don't lock hook controls
Fix typo in comment in surround71.conf
Mark Heaphone {Center|LFE} control of emu10k1 conf as optional
Conf: Fix channels of ICE1712 to 10/12
alsa-lib: add LaCie Firewire Speakers/Griffin FireWave Surround driver
Kernel Headers
control: add snd_ctl_elem_add_enumerated()
asound.h: cosmetic changes for consistency with kernel asound.h
asound.h: update for latest kernel
Add RME RPM to HDSP_IO_Type.
Simple Abstraction Mixer Modules
alsa-lib: fixed coverity reported issues under "FORWARD_NULL" checker.
Test/Example code
Fix printf for size_t
test/latency: print error message when 2 periods per buffer not supported
ucm: allow bind modifier to specific instances, other fixes
Utils
Introduce --with-pkgconfdir, add 64-bit defaults to gitcompile
Changelog between 1.0.22 and 1.0.24 releases
Core
Release v1.0.24
configure.in: don't rely on test -a, not all shells support it
Version-check libtool correctly when doing an out-of-tree build
ucm: Moved ucm to src/ucm subdirectory
general: recoded snd_dlobj_ functions
Check for thread-specific locale support
Control API
ucm: ctlparse - always terminate cset buffer
control: add ASCII parsers from amixer
tlv: fix returned dB information for min-is-mute controls
namehint: Another fix to properly evaluate hw devices
namehint: Fix hw device evaluation (missing last device)
general: recoded snd_dlobj_ functions
namehint: Evaluate more possibilities for hw devices
Memory leak in namehint.c
tlv: Remove tailing tab after snd_ctl_get_dB_range function
tlv: Handle 'holes' in SND_CTL_TLVT_DB_RANGE array
tlv: Check out of range dB with SND_CTL_TLVT_DB_RANGE
control: tlv: Check dB range only within the control's volume range
PCM API
pcm: fix typo in snd_pcm_recover() error message
pcm_plugin: fix delay
pcm: add MMAP_EMUL to type names
pcm_plugin: remove unused client_frames and slave_frames routines
pcm: fix snd_pcm_avail_delay() function
support for period wakeup disabling
pcm: pass hw_params flags to slave
pcm direct plugins: change timestamping in dsnoop
general: recoded snd_dlobj_ functions
Add missing support for 3-byte formats for 16bit put conversion
pcm: Fixed typo (wrong deleted line) instroduced in the minperiodsize patch
pcm: introduce defaults.pcm.compat to change the params choose behaviour
pcm: add defaults.pcm.minperiodtime parsing
pcm_plug: fix comparison always true
pcm - ladspa: fix small memory leak in snd_pcm_ladspa_free_instances()
Sequencer API
seq: Fix for snd_seq_parse_address()
Use Case Manager API
ucm: fix switch device & modifier when no transition is found
ucm: add snd_use_case_verb_list() inline function
ucm: fix handling of cset with spaces in the control name
ucm: only select modifier when supported device is enabled
ucm: implement basic script exec functionality
ucm: check the correct return value for modifier
ucm: check for valid value list before dereference.
ucm: remove unused code.
ucm: make sure active modifier and device lists are initialised
ucm: remove parse_device() and call parse_compound() directly
ucm: modifiers names must be compound parse
ucm: removed unused 'active' member in struct use_case_device
ucm: initial implementation for cdev/cset
ucm: CTL devices are only one per card (remove DEV from comments)
ucm: add ValueDefaults section to the master file
ucm: add cdev
ucm: fix parser for sequences and fix wrong strcmp
ucm: debug parser
ucm: implemented card list feature
ucm: unify snd_use_case_geti(), add snd_use_case_card_list() template
ucm: cosmetic fix
ucm: added implementation for other ucm parts, only card name list is missing
ucm: Introduce "Value {}" section, more implementation work
ucm: Moved ucm to src/ucm subdirectory
ucm: Recode header to be more universal
ucm: core - Add initial Use Case Manager support.
ucm: header - ALSA Use Case Manager
/include/Makefile.am
ucm: build - add build support for Use Case Manager
/src/Makefile.am
ucm: Moved ucm to src/ucm subdirectory
ucm: build - add build support for Use Case Manager
ALSA Lisp
alisp - Fix a string format ambiguity
Configuration
aliases.conf: add aliases for CMI8788-based cards
USB-Audio.conf: fix Audiophile USB card name
config file processing: rewrite the locking - use one recursive mutex
Fix typo for surround PCMs in src/conf/cards/Loopback.conf
Add Loopback.conf to define standard PCM devices for snd-aloop driver
HDA-Intel: do not lock IEC958 Playback switch
pcm: introduce defaults.pcm.compat to change the params choose behaviour
pcm: add defaults.pcm.minperiodtime parsing
HDA-Intel: present all 4 HDMI outputs instead of just the first one
Use thread-safe locale functions if available
Documentation
ucm: Moved ucm to src/ucm subdirectory
ucm: build - add build support for Use Case Manager
Dynamic Loader helpers
general: recoded snd_dlobj_ functions
Kernel Headers
Update hdspm.h file from Adrian Knoth - final version
Update hdspm.h file from Adrian Knoth
Add hdspm.h kernel header to include/alsa/sound tree for the hdspmixer app
support for period wakeup disabling
Test/Example code
ucm: fix parser for sequences and fix wrong strcmp
ucm: debug parser
ucm: implemented card list feature
test/latency: fix timediff calculation
Changelog between 1.0.20 and 1.0.23 releases
Core
Release v1.0.23
add atomic operations for Blackfin parts
Control API
modem.conf Off-hook improve behavior
PCM API
pcm_share plugin: fix pcm->monotonic setup in open() function
pcm_hw - show errno codes
pcm direct plugins: drain() call might be blocked when threads are used
pcm_dmix: add support for S24_LE format
Fix snd_pcm_sw_params_set_period_event() implementation
pcm: fix read_areas and write_areas
pcm: Fix the sound distortions for S24_3LE stream in pcm_softvol plugin
pcm: Close event timer in pcm_hw plugin
The Advanced Linux Sound Architecture (ALSA) provides audio and MIDI
functionality to the Linux operating system. ALSA has the following
significant features:
* Efficient support for all types of audio interfaces, from consumer sound
cards to professional multichannel audio interfaces.
* Fully modularized sound drivers.
* SMP and thread-safe design.
* User space library (alsa-lib) to simplify application programming and
provide higher level functionality.
* Support for the older Open Sound System (OSS) API, providing binary
compatibility for most OSS programs.
