Allow to save whole (or partial) local UCM alsa library configuration
to a file.
Syntax (saves key1.key2 sub-tree):
Sequence [
cfg-save "/tmp/my-file.conf:key1.key2"
]
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
The /var/lib/alsa/card<CARDNO>.conf.d configurations are loaded
to the cards.<CARDNO> tree only (overwrite mode).
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
There's an issue with the current code: It says append for compounds,
but it does overwrite without the proper members delete from
the overwritten (destination) compound node.
Don't change the behaviour, just fix the comment and memory leak.
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This change renames the original exec command to shell which
is more appropriate. Implement a light version of the exec
command which calls directly the specified executable without
the shell interaction (man 3 system).
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
The change device definitions (pcm.front etc.) from the driver
roots (cards.<DRIVER_NAME>) to the card number roots (cards.<CARDNO>).
This will allow us to do custom overrides (like UCM) in
/var/lib/alsa/card<CARDNO>.conf.d.
For dmix and dsnoop default values, use the card ID instead
the card driver name. It's more flexible.
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
For the per-card configuration, add possibility to define
card number -> card driver link table.
Example:
cards.0 'cards.USB-Audio'
cards.1 'cards.USB-Audio'
cards.2 'cards.HDA-Intel'
cards.3 'cards.USB-Audio'
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Fix the "Capture Volume" and "Capture Switch" exceptions no longer
working after commit 86b9c67774 ("mixer: simple - Unify simple_none:
base_len() exception handling") because they were moved to after the
suffix checking, so they would be treated as CTL_GLOBAL_VOLUME resp.
CTL_GLOBAL_SWITCH based on their suffix before the exception check
has a chance to check for a match.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
When the user requests to ignore sysfs write errors by prefixing
the path with a '-' then we need to skip the '-' when building the
actual path otherwise the write will never work.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
fixes autoconf-2.70 warnings. should be compatible down to autoconf-2.59.
BugLink: https://github.com/alsa-project/alsa-lib/pull/106
Signed-off-by: Ozkan Sezer <sezeroz@gmail.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
The application should know, that there is no special
initialization sequence. It's counterpart for
"ucm: return error if boot_list is empty".
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
If bootlist is empty, that means there is no BootSequence defined
in the ucm for this sound card, let set_boot_user() return error,
then alsactl could have chance to use non-ucm ways to initialize the
sound card.
BugLink: https://github.com/alsa-project/alsa-lib/pull/94
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Otherwise, there will be a "Digital Output(S/PDIF)-Cmedia Audio" from
Gnome UI, but there is no this physical interface on the card.
BugLink: https://github.com/alsa-project/alsa-lib/pull/122
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
The Dell Professional Sound Bar AE515 shows up in GNOME Settings with
a digital output that doesn't physically exist. Add it to the list
to suppress this.
BugLink: https://github.com/alsa-project/alsa-lib/pull/124
From: drjhe
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
The Plantronics Blackwire 3220 Series headset (USB ID 047f:c056) shows up
in GNOME Settings with a non-existent digital output. Add it to the list
to suppress this.
BugLink: https://github.com/alsa-project/alsa-lib/pull/126
From: drjhe
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Currently shared memory pointer is initialized to 0 and set to -1
in some, but not in all error paths.
In cleanup path of open the shm pointer is only compared to be non-NULL
before dereferencing it which leads to SEGFAULT in case it was set to -1.
This patch initializes pointer to -1 to have a unique identification
for invalid pointer and also checks for pointer being not -1 on
access in cleanup path.
Signed-off-by: Vanitha Channaiah <vanitha.channaiah@in.bosch.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
This commit allows to define private alsa-lib's configuration. When
the configuration is present, the device values ("PlaybackCTL",
"CaptureCTL", "PlaybackMixer", "CaptureMixer", "CapturePCM")
are prefixed with '_ucmHEXA.' string where HEXA is replaced by the
unique hexadecimal number identifying the opened ucm manager handle.
Syntax 4
LibraryConfig.a_label.SubstiConfig {
# substituted library configuration like:
usr_share_dir "${ConfLibDir}"
}
LibraryConfig.b_label.Config {
# non-substituted library configuration like:
usr_share_dir "/usr/share/alsa"
}
The File counterparts:
LibraryConfig.c_label.SubstiFile "/some/path"
LibraryConfig.d_label.File "/some/path"
Note that for files the contents is substituted on the request,
but the file name is always substituted (useful for ${ConfDir} etc.).
The private configuration is not saved or preserved. It's life time
belongs to the opened ucm manager handle.
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
It may be handy to put extra configurations or symlinks to
the global runtime directory. The configurations may be
created at boot / hotplug event by udev or other scripts.
Signed-off-by: Jaroslav Kysela <perex@perex.cz>
