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Bennett" To: alsa-devel@alsa-project.org, Takashi Iwai Subject: [PATCH 28/31] ALSA: usb-audio: scarlett2: Update mux controls to allow updates Message-ID: <3aaee481c6aeb5e9005d56fc94b0079ba094c00e.1624294591.git.g@b4.vu> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) Cc: Hin-Tak Leung , Vladimir Sadovnikov X-BeenThere: alsa-devel@alsa-project.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: "Alsa-devel" Enabling/disabling speaker switching will update the mux configuration. To prepare for this, add a private->mux_updated flag and update the scarlett2_mux_src_enum_ctl_get() callback to check it. Signed-off-by: Geoffrey D. Bennett --- sound/usb/mixer_scarlett_gen2.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/sound/usb/mixer_scarlett_gen2.c b/sound/usb/mixer_scarlett_gen2.c index efa65bdb48c8..dce40d2e0ba6 100644 --- a/sound/usb/mixer_scarlett_gen2.c +++ b/sound/usb/mixer_scarlett_gen2.c @@ -378,6 +378,7 @@ struct scarlett2_data { u8 vol_updated; u8 input_other_updated; u8 monitor_other_updated; + u8 mux_updated; u8 sync; u8 master_vol; u8 vol[SCARLETT2_ANALOGUE_MAX]; @@ -1446,6 +1447,8 @@ static int scarlett2_usb_get_mux(struct usb_mixer_interface *mixer) __le32 data[SCARLETT2_MUX_MAX]; + private->mux_updated = 0; + req.num = 0; req.count = cpu_to_le16(count); @@ -2794,7 +2797,8 @@ static int scarlett2_mux_src_enum_ctl_get(struct snd_kcontrol *kctl, struct snd_ctl_elem_value *ucontrol) { struct usb_mixer_elem_info *elem = kctl->private_data; - struct scarlett2_data *private = elem->head.mixer->private_data; + struct usb_mixer_interface *mixer = elem->head.mixer; + struct scarlett2_data *private = mixer->private_data; const struct scarlett2_device_info *info = private->info; const int (*port_count)[SCARLETT2_PORT_DIRNS] = info->port_count; int line_out_count = @@ -2804,7 +2808,12 @@ static int scarlett2_mux_src_enum_ctl_get(struct snd_kcontrol *kctl, if (index < line_out_count) index = line_out_remap(private, index); + mutex_lock(&private->data_mutex); + if (private->mux_updated) + scarlett2_usb_get_mux(mixer); ucontrol->value.enumerated.item[0] = private->mux[index]; + mutex_unlock(&private->data_mutex); + return 0; } -- 2.31.1