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authordvdli <dvdli@google.com>2020-12-07 16:30:50 +0800
committerdvdli <dvdli@google.com>2020-12-07 16:30:50 +0800
commit31dcaff5d2fa8ec0c11bc5b5057a1cd0dde7e110 (patch)
tree7bc039a7bc5d661d2918dfc595c4401b233ca1e0 /utils
parent8ee99fc593797dabc042b249cd57b6abd7a81025 (diff)
add usage of VALUES
Diffstat (limited to 'utils')
-rw-r--r--utils/tinymix.c19
1 files changed, 12 insertions, 7 deletions
diff --git a/utils/tinymix.c b/utils/tinymix.c
index 2effa19..31b8a19 100644
--- a/utils/tinymix.c
+++ b/utils/tinymix.c
@@ -51,14 +51,19 @@ void usage(void)
{
printf("usage: tinymix [options] <command>\n");
printf("options:\n");
- printf("\t-h, --help : prints this help message and exits\n");
- printf("\t-v, --version : prints this version of tinymix and exits\n");
- printf("\t-D, --card NUMBER : specifies the card number of the mixer\n");
+ printf("\t-h, --help : prints this help message and exits\n");
+ printf("\t-v, --version : prints this version of tinymix and exits\n");
+ printf("\t-D, --card NUMBER : specifies the card number of the mixer\n");
+ printf("\n");
printf("commands:\n");
- printf("\tget NAME|ID : prints the values of a control\n");
- printf("\tset NAME|ID VALUE : sets the value of a control\n");
- printf("\tcontrols : lists controls of the mixer\n");
- printf("\tcontents : lists controls of the mixer and their contents\n");
+ printf("\tget NAME|ID : prints the values of a control\n");
+ printf("\tset NAME|ID VALUE(S) ... : sets the value of a control\n");
+ printf("\t\tVALUE(S): integers, percents, and relative values\n");
+ printf("\t\t\tIntegers: 0, 100, -100 ...\n");
+ printf("\t\t\tPercents: 0%%, 100%% ...\n");
+ printf("\t\t\tRelative values: 1+, 1-, 1%%+, 2%%+ ...\n");
+ printf("\tcontrols : lists controls of the mixer\n");
+ printf("\tcontents : lists controls of the mixer and their contents\n");
}
void version(void)