Re: [PATCH] More quirks for M-Audio Fast Track Ultra.

[Takashi Iwai <tiwai@suse.de>]

On Fri, 17 Jul 2026 16:50:24 +0200,
Grant Diffey wrote:
> 
> Hi all
> 
> 86aa1ea1f15ce broke the fast track ultra... patch adds a quirk for 'broken
> GET_CUR'  which is absolutely required to be able to configure this
> interface.

Which controls are affected?

> I've also applied the IMPLICIT FEEDBACK quirk as I believe this card should
> be treated as implicit feedback like the C600
> 
> This should probably be applied for the Fast track ultra 8R as well but I
> don't have one to test.

Could you resubmit in a proper format?

Please post & submit to linux-sound@vger.kernel.org instead of here,
and always put maintainers to Cc, at the next time.


thanks,

Takashi

> 
> 
> Regards
> Grant
> diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
> index 41149561aa06..ab5d008a2748 100644
> --- a/sound/usb/quirks.c
> +++ b/sound/usb/quirks.c
> @@ -2320,6 +2320,8 @@ static const struct usb_audio_quirk_flags_table quirk_flags_table[] = {
>  		   QUIRK_FLAG_GENERIC_IMPLICIT_FB),
>  	DEVICE_FLG(0x0763, 0x2031, /* M-Audio Fast Track C600 */
>  		   QUIRK_FLAG_GENERIC_IMPLICIT_FB),
> +	DEVICE_FLG(0x0763, 0x2080, /* M-Audio Fast Track Ultra */
> +		   QUIRK_FLAG_MIXER_GET_CUR_BROKEN | QUIRK_FLAG_GENERIC_IMPLICIT_FB),
>  	DEVICE_FLG(0x07fd, 0x000b, /* MOTU M Series 2nd hardware revision */
>  		   QUIRK_FLAG_CTL_MSG_DELAY_1M),
>  	DEVICE_FLG(0x08bb, 0x2702, /* LineX FM Transmitter */