diff options
| -rw-r--r-- | sound/usb/mixer_scarlett2.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/sound/usb/mixer_scarlett2.c b/sound/usb/mixer_scarlett2.c index 84dd9c43afde..26bdd1beae2e 100644 --- a/sound/usb/mixer_scarlett2.c +++ b/sound/usb/mixer_scarlett2.c @@ -1680,6 +1680,12 @@ static int scarlett2_usb_get_volume_status( buf, sizeof(*buf)); } +/* Return true if the device has a mixer that we can control */ +static int scarlett2_has_mixer(struct scarlett2_data *private) +{ + return !!private->info->mux_assignment[0][0].count; +} + /* Send a USB message to get the volumes for all inputs of one mix * and put the values into private->mix[] */ @@ -2175,7 +2181,7 @@ static int scarlett2_add_sync_ctl(struct usb_mixer_interface *mixer) struct scarlett2_data *private = mixer->private_data; /* devices without a mixer also don't support reporting sync status */ - if (private->info->config_set == SCARLETT2_CONFIG_SET_GEN_3A) + if (!scarlett2_has_mixer(private)) return 0; return scarlett2_add_new_ctl(mixer, &scarlett2_sync_ctl, @@ -4111,7 +4117,7 @@ static int scarlett2_add_meter_ctl(struct usb_mixer_interface *mixer) struct scarlett2_data *private = mixer->private_data; /* devices without a mixer also don't support reporting levels */ - if (private->info->config_set == SCARLETT2_CONFIG_SET_GEN_3A) + if (!scarlett2_has_mixer(private)) return 0; return scarlett2_add_new_ctl(mixer, &scarlett2_meter_ctl, @@ -4516,7 +4522,7 @@ static int scarlett2_read_configs(struct usb_mixer_interface *mixer) return err; /* the rest of the configuration is for devices with a mixer */ - if (info->config_set == SCARLETT2_CONFIG_SET_GEN_3A) + if (!scarlett2_has_mixer(private)) return 0; if (scarlett2_has_config_item(private, |