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Commit 2dd5aa15 authored by Jorge Sanjuan's avatar Jorge Sanjuan Committed by Takashi Iwai
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ALSA: usb-audio: Add bi-directional terminal types 



Define the bi-directional USB terminal types for audio devices.

Signed-off-by: default avatarJorge Sanjuan <jorge.sanjuan@codethink.co.uk>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 4a23fc8c

include/uapi/linux/usb/audio.h

+8 −0
Original line number Diff line number Diff line
@@ -230,6 +230,14 @@ struct uac1_output_terminal_descriptor { 
#define UAC_OUTPUT_TERMINAL_COMMUNICATION_SPEAKER	0x306

#define UAC_OUTPUT_TERMINAL_LOW_FREQ_EFFECTS_SPEAKER	0x307



/* Terminals - 2.4 Bi-directional Terminal Types */

#define UAC_BIDIR_TERMINAL_UNDEFINED			0x400

#define UAC_BIDIR_TERMINAL_HANDSET			0x401

#define UAC_BIDIR_TERMINAL_HEADSET			0x402

#define UAC_BIDIR_TERMINAL_SPEAKER_PHONE		0x403

#define UAC_BIDIR_TERMINAL_ECHO_SUPPRESSING		0x404

#define UAC_BIDIR_TERMINAL_ECHO_CANCELING		0x405



/* Set bControlSize = 2 as default setting */

#define UAC_DT_FEATURE_UNIT_SIZE(ch)		(7 + ((ch) + 1) * 2)