diff options
Diffstat (limited to 'tinymix.c')
-rw-r--r-- | tinymix.c | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/tinymix.c b/tinymix.c new file mode 100644 index 0000000..73694fd --- /dev/null +++ b/tinymix.c @@ -0,0 +1,61 @@ +/* tinymix.c +** +** Copyright 2011, The Android Open Source Project +** +** Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in the +** documentation and/or other materials provided with the distribution. +** * Neither the name of The Android Open Source Project nor the names of +** its contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** THIS SOFTWARE IS PROVIDED BY The Android Open Source Project ``AS IS'' AND +** ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +** ARE DISCLAIMED. IN NO EVENT SHALL The Android Open Source Project BE LIABLE +** FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +** DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +** SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +** CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +** LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +** OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH +** DAMAGE. +*/ + +#include <tinyalsa/asoundlib.h> +#include <stdio.h> + +int main(int argc, char **argv) +{ + struct mixer *mixer; + struct mixer_ctl *ctl; + const char *type; + unsigned int num_ctls, num_values; + char buffer[256]; + unsigned int i; + + mixer = mixer_open(0); + num_ctls = mixer_get_num_ctls(mixer); + + printf("Number of controls: %d\n", num_ctls); + + printf("ctl\ttype\tnum\tname\n"); + for (i = 0; i < num_ctls; i++) { + ctl = mixer_get_ctl(mixer, i); + + mixer_ctl_get_name(ctl, buffer, sizeof(buffer)); + type = mixer_ctl_get_type_string(ctl); + num_values = mixer_ctl_get_num_values(ctl); + + printf("%d\t%s\t%d\t%s\n", i, type, num_values, buffer); + } + + mixer_close(mixer); + + return 0; +} + |