Commit ca8dc34e authored by Mandar Joshi's avatar Mandar Joshi Committed by Takashi Iwai
Browse files

ALSA: usb-audio - Support for Power/Status LED on Creative USB X-Fi S51 



This patch adds support for Power/Status LED on Creative USB X-Fi S51.
There is just one LED on the device. The LED can either be On or it
can be set to Blink. There doesn't seem to be a way to switch it off.
The control message to change LED status is similar to that of
audigy2nx except that the index is to be set to 0 and value is 1 for
Blink and 0 for On.

The 'Power LED' control in alsamixer when muted will cause the LED to
Blink continuously. When unmuted  the LED will stay On. The Creative
driver under Windows sets the LED to blink whenever audio is muted.
This LED can be treated as the CMSS LED but I figured since there is
just one LED, it should be treated as the Power LED. Is that alright?

I've also changed the comment "Usb X-Fi" to "Usb X-Fi S51" as there
are other external X-Fi devices from Creative like Usb X-Fi Go and
Xmod. The volume knob and LED support patch doesn't apply to them.

Signed-off-by: default avatarMandar Joshi <emailmandar@gmail.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent fd0977d0

sound/usb/mixer_quirks.c

+13 −2
Original line number Diff line number Diff line
@@ -60,7 +60,7 @@ static const struct rc_config { 
	{ USB_ID(0x041e, 0x3000), 0, 1, 2, 1,  18, 0x0013 }, /* Extigy       */

	{ USB_ID(0x041e, 0x3020), 2, 1, 6, 6,  18, 0x0013 }, /* Audigy 2 NX  */

	{ USB_ID(0x041e, 0x3040), 2, 2, 6, 6,  2,  0x6e91 }, /* Live! 24-bit */

	{ USB_ID(0x041e, 0x3042), 0, 1, 1, 1,  1,  0x000d }, /* Usb X-Fi */

	{ USB_ID(0x041e, 0x3042), 0, 1, 1, 1,  1,  0x000d }, /* Usb X-Fi S51 */

	{ USB_ID(0x041e, 0x3048), 2, 2, 6, 6,  2,  0x6e91 }, /* Toshiba SB0500 */

};
@@ -183,6 +183,12 @@ static int snd_audigy2nx_led_put(struct snd_kcontrol *kcontrol, struct snd_ctl_e 
	if (value > 1)

		return -EINVAL;

	changed = value != mixer->audigy2nx_leds[index];

	if (mixer->chip->usb_id == USB_ID(0x041e, 0x3042))

		err = snd_usb_ctl_msg(mixer->chip->dev,

			      usb_sndctrlpipe(mixer->chip->dev, 0), 0x24,

			      USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,

			      !value, 0, NULL, 0, 100);

	else

		err = snd_usb_ctl_msg(mixer->chip->dev,

			      usb_sndctrlpipe(mixer->chip->dev, 0), 0x24,

			      USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
@@ -225,8 +231,12 @@ static int snd_audigy2nx_controls_create(struct usb_mixer_interface *mixer) 
	int i, err;



	for (i = 0; i < ARRAY_SIZE(snd_audigy2nx_controls); ++i) {

		/* USB X-Fi S51 doesn't have a CMSS LED */

		if ((mixer->chip->usb_id == USB_ID(0x041e, 0x3042)) && i == 0)

			continue;

		if (i > 1 && /* Live24ext has 2 LEDs only */

			(mixer->chip->usb_id == USB_ID(0x041e, 0x3040) ||

			 mixer->chip->usb_id == USB_ID(0x041e, 0x3042) ||

			 mixer->chip->usb_id == USB_ID(0x041e, 0x3048)))

			break; 

		err = snd_ctl_add(mixer->chip->card,
@@ -365,6 +375,7 @@ int snd_usb_mixer_apply_create_quirk(struct usb_mixer_interface *mixer) 


	if (mixer->chip->usb_id == USB_ID(0x041e, 0x3020) ||

	    mixer->chip->usb_id == USB_ID(0x041e, 0x3040) ||

	    mixer->chip->usb_id == USB_ID(0x041e, 0x3042) ||

	    mixer->chip->usb_id == USB_ID(0x041e, 0x3048)) {

		if ((err = snd_audigy2nx_controls_create(mixer)) < 0)

			return err;

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