From bad2b79b02708be69b65faae88f5be331bdf49b6 Mon Sep 17 00:00:00 2001 From: Misael Lopez Cruz Date: Wed, 7 Nov 2012 18:17:21 -0600 Subject: tinymix: Add support for passing control name Allow mixer controls to be accessed through the name, not only by id. --- tinymix.c | 34 +++++++++++++++++++++++----------- 1 file changed, 23 insertions(+), 11 deletions(-) (limited to 'tinymix.c') diff --git a/tinymix.c b/tinymix.c index c22bbb2..cb44d66 100644 --- a/tinymix.c +++ b/tinymix.c @@ -32,9 +32,9 @@ #include static void tinymix_list_controls(struct mixer *mixer); -static void tinymix_detail_control(struct mixer *mixer, unsigned int id, +static void tinymix_detail_control(struct mixer *mixer, const char *control, int print_all); -static void tinymix_set_value(struct mixer *mixer, unsigned int id, +static void tinymix_set_value(struct mixer *mixer, const char *control, char **values, unsigned int num_values); static void tinymix_print_enum(struct mixer_ctl *ctl, int print_all); @@ -63,9 +63,9 @@ int main(int argc, char **argv) if (argc == 1) tinymix_list_controls(mixer); else if (argc == 2) - tinymix_detail_control(mixer, atoi(argv[1]), 1); + tinymix_detail_control(mixer, argv[1], 1); else if (argc >= 3) - tinymix_set_value(mixer, atoi(argv[1]), &argv[2], argc - 2); + tinymix_set_value(mixer, argv[1], &argv[2], argc - 2); else printf("Usage: tinymix [-D card] [control id] [value to set]\n"); @@ -93,7 +93,7 @@ static void tinymix_list_controls(struct mixer *mixer) type = mixer_ctl_get_type_string(ctl); num_values = mixer_ctl_get_num_values(ctl); printf("%d\t%s\t%d\t%-40s", i, type, num_values, name); - tinymix_detail_control(mixer, i, 0); + tinymix_detail_control(mixer, name, 0); } } @@ -115,7 +115,7 @@ static void tinymix_print_enum(struct mixer_ctl *ctl, int print_all) } } -static void tinymix_detail_control(struct mixer *mixer, unsigned int id, +static void tinymix_detail_control(struct mixer *mixer, const char *control, int print_all) { struct mixer_ctl *ctl; @@ -124,13 +124,16 @@ static void tinymix_detail_control(struct mixer *mixer, unsigned int id, unsigned int i; int min, max; - if (id >= mixer_get_num_ctls(mixer)) { + if (isdigit(control[0])) + ctl = mixer_get_ctl(mixer, atoi(control)); + else + ctl = mixer_get_ctl_by_name(mixer, control); + + if (!ctl) { fprintf(stderr, "Invalid mixer control\n"); return; } - ctl = mixer_get_ctl(mixer, id); - type = mixer_ctl_get_type(ctl); num_values = mixer_ctl_get_num_values(ctl); @@ -168,7 +171,7 @@ static void tinymix_detail_control(struct mixer *mixer, unsigned int id, printf("\n"); } -static void tinymix_set_value(struct mixer *mixer, unsigned int id, +static void tinymix_set_value(struct mixer *mixer, const char *control, char **values, unsigned int num_values) { struct mixer_ctl *ctl; @@ -176,7 +179,16 @@ static void tinymix_set_value(struct mixer *mixer, unsigned int id, unsigned int num_ctl_values; unsigned int i; - ctl = mixer_get_ctl(mixer, id); + if (isdigit(control[0])) + ctl = mixer_get_ctl(mixer, atoi(control)); + else + ctl = mixer_get_ctl_by_name(mixer, control); + + if (!ctl) { + fprintf(stderr, "Invalid mixer control\n"); + return; + } + type = mixer_ctl_get_type(ctl); num_ctl_values = mixer_ctl_get_num_values(ctl); -- cgit v1.2.3