Re: [PATCH] ALSA: usb-audio: Add quirk flag for ASUS SupremeFX Hi-Fi

[Takashi Iwai <tiwai@suse.de>]

On Wed, 23 Sep 2026 08:45:27 +0200,
Roman Bolotov wrote:
> 
> The ASUS SupremeFX Hi-Fi (0b05:1826, 0b05:1827) does not survive USB
> autosuspend.  After a suspend/resume cycle the firmware degrades: HID
> probes begin to fail and the descriptors it returns become corrupted,
> until the device stops responding entirely and needs a physical power
> cycle to recover.
> 
> Add QUIRK_FLAG_DISABLE_AUTOSUSPEND for both product IDs.
> 
> Verified on 7.2.6 through the quirk_flags module parameter, with no
> code change, and with the local udev rules that had been forcing
> power/control commented out, so the parameter was the only mechanism
> in play.  Both IDs were passed as
> 
>   0b05:1827:disable_autosuspend;0b05:1826:disable_autosuspend
> 
> The device then stayed awake across 2.5 hours (runtime_suspended_time
> remained 0), survived a system suspend/resume cycle, and continued to
> work afterwards with no failed probes and no power cycle needed.
> 
> Signed-off-by: Roman Bolotov <hadros@ikeepitoblique.com>

Applied now.  Thanks.


Takashi