linux-kernel - [PATCH v2 3/4] ALSA: usb-audio: UAC3. Add insertion control for BADD.

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Thu, 14 Jun 2018 15:05:57 +0100
From:   Jorge Sanjuan <jorge.sanjuan@...ethink.co.uk>
To:     tiwai@...e.de
Cc:     alsa-devel@...a-project.org, linux-kernel@...r.kernel.org,
        ruslan.bilovol@...il.com
Subject: [PATCH v2 3/4] ALSA: usb-audio: UAC3. Add insertion control for BADD.

The HEADSET ADAPTER profile for BADD devices is meant to support
Insertion Control for the Input and Output Terminals of the headset.

This patch defines the BADD inferred input and output terminals and
builds the connector controls.

Signed-off-by: Jorge Sanjuan <jorge.sanjuan@...ethink.co.uk>
---
 sound/usb/mixer.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index 34fef71e0330..03b8a2ac93c8 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -2918,6 +2918,23 @@ static int snd_usb_mixer_controls_badd(struct usb_mixer_interface *mixer,
 				       UAC3_BADD_FU_ID7, map->map);
 	}
 
+	/* Insertion Control */
+	if (f->subclass == UAC3_FUNCTION_SUBCLASS_HEADSET_ADAPTER) {
+		struct usb_audio_term iterm, oterm;
+
+		/* Input Term - Insertion control */
+		memset(&iterm, 0, sizeof(iterm));
+		iterm.id = UAC3_BADD_IT_ID4;
+		iterm.type = UAC_BIDIR_TERMINAL_HEADSET;
+		build_connector_control(mixer, &iterm, true);
+
+		/* Output Term - Insertion control */
+		memset(&oterm, 0, sizeof(oterm));
+		oterm.id = UAC3_BADD_OT_ID3;
+		oterm.type = UAC_BIDIR_TERMINAL_HEADSET;
+		build_connector_control(mixer, &oterm, false);
+	}
+
 	return 0;
 }
 
-- 
2.11.0