The documentation specifies three different rounding modes, but this
is wrong, because they all end up calling snd_tlv_convert_from_dB,
which only has two rounding modes.
Signed-off-by: David Henningsson <diwic@ubuntu.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The functions to check whether the element is an enum don't need the
extra check of the type. It should return simply 0 or 1 without error.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
The recent CHECK_ENUM fix uncovered a bug in snd_mixer_selem_is_enumerated()
which would now return -EINVAL for any non-enum control, which would be
interpreted as 'true' by callers like amixer or alsamixer.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
simple.c: In function ‘snd_mixer_selem_is_enumerated’:
simple.c:881: warning: suggest parentheses around operand of ‘!’ or change ‘&’ to ‘&&’ or ‘!’ to ‘~’
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This makes it possible to write them to .data.rel.ro or to .rodata if
there is no relocation involved (arrays of character arrays).
Signed-off-by: Diego E. 'Flameeyes' Pettenò <flameeyes@gmail.com>
reasons:
- rapid development
- class-like code structure
- more readable code
features:
- hcontrol binding is managed from python (opportunity to create
virtual mixer without driver or join multiple cards to behave as one)
- midlayer cleanups and simplification
- probably broke the "none" abstraction code somehow (not intensively tested
midlayer changes)
- trying to implement ac97 module
- far from finished
- common code should be moved to alsa-lib as core for other modules
- perhaps simple_abst.c can be based on this common code, too
- exported all necessary functions to create a mixer module outside alsa-lib
- separated simple mixer API from the simple mixer implementation
(using callbacks as usuall)
- src/mixer/simple.c is the core
- src/mixer/simple_none.c is the current (no-abstraction) implementation
based on control names; note that this module does not depend on
internal ALSA structures now
- src/mixer/simple_abst.c is the ongoing abstraction which will use
external dynamic modules; src/conf/smixer.conf will describe which
modules will be used depending on the components from the driver
the following functions are added:
int snd_mixer_selem_is_enumerated()
int snd_mixer_selem_get_enum_items()
int snd_mixer_selem_get_enum_item_name()
int snd_mixer_selem_get_enum_item()
int snd_mixer_selem_set_enum_item()
"Capture Switch" and "Capture Volume" controls are handled
capture switch and volume without playback capabilities.
capture switch and volume capabilities are not set on
global switches and volumes such as Bass and Treble.
only playback switch/volume is set.
