Re: [PATCH] ALSA: ua101: reject mismatched capture/playback packet sizes

[Takashi Iwai <tiwai@suse.de>]

On Thu, 12 Nov 2026 10:25:39 +0100,
London grad wrote:
> Hello all
> 
> This patch may have broken ua-101?
> 
> Kernel 6.8.0-146 still works for me
> 
> In kernel 6.8.0-149 my UA-1000 fails with
> 
> `snd-ua101` rejects the device during probe at every physical sample rate
> setting (44.1, 48, 88.2, and 96 kHz), leaving the interface unregistered in
> ALSA.
> 
> ### Relevant `dmesg` Output
> [ 2622.796887] usb 3-3: new high-speed USB device number 5 using xhci_hcd
> [ 2622.928793] usb 3-3: New USB device found, idVendor=0582, idProduct=0044,
> bcdDevice= 1.07
> [ 2622.928798] usb 3-3: New USB device strings: Mfr=1, Product=2, SerialNumber
> =3
> [ 2622.928800] usb 3-3: Product: UA-1000
> [ 2622.928801] usb 3-3: Manufacturer: EDIROL
> [ 2622.928802] usb 3-3: SerialNumber: ZT02743
> [ 2622.934792] usb 3-3: playback packet size 560 too small for 15 capture
> frames
> 
> Submitted bug report here
> https://bugzilla.kernel.org/show_bug.cgi?id=222261

Could you verify that just reverting the commit fixes your problem?
It's quite possible that this patch is the cause, but just to be sure.


thanks,

Takashi