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ALSA: scarlett2: Infer standalone switch from config items

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Rather than assuming the standalone switch is present for all devices
with a mixer, instead check for the presence of the
SCARLETT2_CONFIG_STANDALONE_SWITCH config item.

Signed-off-by: Geoffrey D. Bennett <g@b4.vu>
Link: https://lore.kernel.org/r/59c30885b02d65feaab2c338cf46889d72d01813.1703444932.git.g@b4.vu
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Geoffrey D. Bennett
2023-12-25 05:51:40 +10:30
committed by Takashi Iwai
parent 3a4e1afe7d
commit 3978fefdf4
1 changed files with 10 additions and 6 deletions
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16
sound/usb/mixer_scarlett2.c
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@@ -4244,7 +4244,8 @@ static int scarlett2_add_standalone_ctl(struct usb_mixer_interface *mixer)
{
struct scarlett2_data *private = mixer->private_data;
if (private->info->config_set == SCARLETT2_CONFIG_SET_GEN_3A)
if (!scarlett2_has_config_item(private,
SCARLETT2_CONFIG_STANDALONE_SWITCH))
return 0;
/* Add standalone control */
@@ -4512,11 +4513,14 @@ static int scarlett2_read_configs(struct usb_mixer_interface *mixer)
if (info->config_set == SCARLETT2_CONFIG_SET_GEN_3A)
return 0;
err = scarlett2_usb_get_config(
mixer, SCARLETT2_CONFIG_STANDALONE_SWITCH,
1, &private->standalone_switch);
if (err < 0)
return err;
if (scarlett2_has_config_item(private,
SCARLETT2_CONFIG_STANDALONE_SWITCH)) {
err = scarlett2_usb_get_config(
mixer, SCARLETT2_CONFIG_STANDALONE_SWITCH,
1, &private->standalone_switch);
if (err < 0)
return err;
}
err = scarlett2_update_sync(mixer);
if (err < 0)