diff options
Diffstat (limited to 'sound/usb')
| -rw-r--r-- | sound/usb/mixer.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c index feed500f9435..ed4d89c8b52a 100644 --- a/sound/usb/mixer.c +++ b/sound/usb/mixer.c @@ -1136,6 +1136,32 @@ static size_t append_ctl_name(struct snd_kcontrol *kctl, const char *str) return strlcat(kctl->id.name, str, sizeof(kctl->id.name)); } +/* A lot of headsets/headphones have a "Speaker" mixer. Make sure we + rename it to "Headphone". We determine if something is a headphone + similar to how udev determines form factor. */ +static void check_no_speaker_on_headset(struct snd_kcontrol *kctl, + struct snd_card *card) +{ + const char *names_to_check[] = { + "Headset", "headset", "Headphone", "headphone", NULL}; + const char **s; + bool found = 0; + + if (strcmp("Speaker", kctl->id.name)) + return; + + for (s = names_to_check; *s; s++) + if (strstr(card->shortname, *s)) { + found = 1; + break; + } + + if (!found) + return; + + strlcpy(kctl->id.name, "Headphone", sizeof(kctl->id.name)); +} + static void build_feature_ctl(struct mixer_build *state, void *raw_desc, unsigned int ctl_mask, int control, struct usb_audio_term *iterm, int unitid, @@ -1222,6 +1248,10 @@ static void build_feature_ctl(struct mixer_build *state, void *raw_desc, len = snprintf(kctl->id.name, sizeof(kctl->id.name), "Feature %d", unitid); } + + if (!mapped_name) + check_no_speaker_on_headset(kctl, state->mixer->chip->card); + /* determine the stream direction: * if the connected output is USB stream, then it's likely a * capture stream. otherwise it should be playback (hopefully :) |