Commit 7dc3c5a0 authored by Takashi Iwai's avatar Takashi Iwai
Browse files

ALSA: usb-audio: Don't create jack controls for PCM terminals 

Some funky firmwares set the connector flag even on PCM terminals
although it doesn't make sense (and even actually the firmware doesn't
react properly!).  Let's skip creation of jack controls in such a
case.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=206873
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20200412081331.4742-4-tiwai@suse.de


Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 3507245b

sound/usb/mixer.c

+6 −3
Original line number Diff line number Diff line
@@ -2109,7 +2109,8 @@ static int parse_audio_input_terminal(struct mixer_build *state, int unitid, 
	check_input_term(state, term_id, &iterm);



	/* Check for jack detection. */

	if (uac_v2v3_control_is_readable(bmctls, control))

	if ((iterm.type & 0xff00) != 0x0100 &&

	    uac_v2v3_control_is_readable(bmctls, control))

		build_connector_control(state->mixer, &iterm, true);



	return 0;
@@ -3149,7 +3150,8 @@ static int snd_usb_mixer_controls(struct usb_mixer_interface *mixer) 
			if (err < 0 && err != -EINVAL)

				return err;



			if (uac_v2v3_control_is_readable(le16_to_cpu(desc->bmControls),

			if ((state.oterm.type & 0xff00) != 0x0100 &&

			    uac_v2v3_control_is_readable(le16_to_cpu(desc->bmControls),

							 UAC2_TE_CONNECTOR)) {

				build_connector_control(state.mixer, &state.oterm,

							false);
@@ -3174,7 +3176,8 @@ static int snd_usb_mixer_controls(struct usb_mixer_interface *mixer) 
			if (err < 0 && err != -EINVAL)

				return err;



			if (uac_v2v3_control_is_readable(le32_to_cpu(desc->bmControls),

			if ((state.oterm.type & 0xff00) != 0x0100 &&

			    uac_v2v3_control_is_readable(le32_to_cpu(desc->bmControls),

							 UAC3_TE_INSERTION)) {

				build_connector_control(state.mixer, &state.oterm,

							false);

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