The per-model button_count value was used to determine whether dim/mute controls should be added, but these are present iff line_out_hw_vol is true. Remove button_count and replace with SCARLETT2_BUTTON_MAX and a check for line_out_hw_vol true.

Signed-off-by: Geoffrey D. Bennett g@b4.vu --- sound/usb/mixer_scarlett_gen2.c | 41 ++++++++++++++++++--------------- 1 file changed, 23 insertions(+), 18 deletions(-)

diff --git a/sound/usb/mixer_scarlett_gen2.c b/sound/usb/mixer_scarlett_gen2.c index 3225ec709d98..043b0929ad9d 100644 --- a/sound/usb/mixer_scarlett_gen2.c +++ b/sound/usb/mixer_scarlett_gen2.c @@ -218,7 +218,6 @@ struct scarlett2_ports {

struct scarlett2_device_info { u8 line_out_hw_vol; /* line out hw volume is sw controlled */ - u8 button_count; /* number of buttons */ u8 level_input_count; /* inputs with level selectable */ u8 pad_input_count; /* inputs with pad selectable */ const char * const line_out_descrs[SCARLETT2_ANALOGUE_MAX]; @@ -370,9 +369,6 @@ static const struct scarlett2_device_info s18i20_gen2_info = { */ .line_out_hw_vol = 1,

- /* Mute and dim buttons */ - .button_count = 2, - .line_out_descrs = { "Monitor L", "Monitor R", @@ -1108,7 +1104,8 @@ static int scarlett2_add_new_ctl(struct usb_mixer_interface *mixer, static int scarlett2_update_volumes(struct usb_mixer_interface *mixer) { struct scarlett2_mixer_data *private = mixer->private_data; - const struct scarlett2_ports *ports = private->info->ports; + const struct scarlett2_device_info *info = private->info; + const struct scarlett2_ports *ports = info->ports; struct scarlett2_usb_volume_status volume_status; int num_line_out = ports[SCARLETT2_PORT_TYPE_ANALOGUE].num[SCARLETT2_PORT_OUT]; @@ -1129,8 +1126,9 @@ static int scarlett2_update_volumes(struct usb_mixer_interface *mixer) private->vol[i] = private->master_vol; }

- for (i = 0; i < private->info->button_count; i++) - private->buttons[i] = !!volume_status.buttons[i]; + if (info->line_out_hw_vol) + for (i = 0; i < SCARLETT2_BUTTON_MAX; i++) + private->buttons[i] = !!volume_status.buttons[i];

return 0; } @@ -1547,13 +1545,15 @@ static int scarlett2_add_line_out_ctls(struct usb_mixer_interface *mixer) }

/* Add HW button controls */ - for (i = 0; i < private->info->button_count; i++) { - err = scarlett2_add_new_ctl(mixer, &scarlett2_button_ctl, - i, 1, scarlett2_button_names[i], - &private->button_ctls[i]); - if (err < 0) - return err; - } + if (info->line_out_hw_vol) + for (i = 0; i < SCARLETT2_BUTTON_MAX; i++) { + err = scarlett2_add_new_ctl( + mixer, &scarlett2_button_ctl, + i, 1, scarlett2_button_names[i], + &private->button_ctls[i]); + if (err < 0) + return err; + }

return 0; } @@ -1961,8 +1961,9 @@ static int scarlett2_read_configs(struct usb_mixer_interface *mixer) private->vol[i] = volume; }

- for (i = 0; i < info->button_count; i++) - private->buttons[i] = !!volume_status.buttons[i]; + if (info->line_out_hw_vol) + for (i = 0; i < SCARLETT2_BUTTON_MAX; i++) + private->buttons[i] = !!volume_status.buttons[i];

for (i = 0; i < num_mixer_out; i++) { err = scarlett2_usb_get_mix(mixer, i); @@ -2001,11 +2002,15 @@ static void scarlett2_mixer_interrupt_button_change( struct usb_mixer_interface *mixer) { struct scarlett2_mixer_data *private = mixer->private_data; + const struct scarlett2_device_info *info = private->info; int i;

private->vol_updated = 1;

- for (i = 0; i < private->info->button_count; i++) + if (!info->line_out_hw_vol) + return; + + for (i = 0; i < SCARLETT2_BUTTON_MAX; i++) snd_ctl_notify(mixer->chip->card, SNDRV_CTL_EVENT_MASK_VALUE, &private->button_ctls[i]->id); } @@ -2109,7 +2114,7 @@ static int snd_scarlett_gen2_controls_create(struct usb_mixer_interface *mixer, return err;

/* Set up the interrupt polling if there are hardware buttons */ - if (info->button_count) { + if (info->line_out_hw_vol) { err = scarlett2_mixer_status_create(mixer); if (err < 0) return err;