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authorJorge Sanjuan <jorge.sanjuan@codethink.co.uk>2018-06-14 15:05:55 +0100
committerTakashi Iwai <tiwai@suse.de>2018-06-14 18:03:21 +0200
commit2dd5aa15d9a2d4b87b32d93f3c5a66f175c0123d (patch)
tree46358ce3a18ed13752ff954230abd825adf51a60 /include
parent4a23fc8cc068ee5adfb9939d86baaf0f3e180df6 (diff)
ALSA: usb-audio: Add bi-directional terminal types
Define the bi-directional USB terminal types for audio devices. Signed-off-by: Jorge Sanjuan <jorge.sanjuan@codethink.co.uk> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'include')
-rw-r--r--include/uapi/linux/usb/audio.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/uapi/linux/usb/audio.h b/include/uapi/linux/usb/audio.h
index 13d98e6e0db1..74e520fb944f 100644
--- a/include/uapi/linux/usb/audio.h
+++ b/include/uapi/linux/usb/audio.h
@@ -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)