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Commit 3528cd8f authored by Jorge Sanjuan's avatar Jorge Sanjuan Committed by Takashi Iwai
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ALSA: usb-audio: Add insertion control for UAC3 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: default avatarJorge Sanjuan <jorge.sanjuan@codethink.co.uk>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 167e1fb1

sound/usb/mixer.c

+17 −0
Original line number Diff line number Diff line
@@ -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;

}