On Wed, 2021-03-24 at 18:51 +0800, Ikjoon Jang wrote: > Logitech ConferenceCam Connect is a compound USB device with UVC and > UAC. Not 100% reproducible but sometimes it keeps responding STALL to > every control transfer once it receives get_freq request. > > This patch adds 046d:0x084c to a snd_usb_get_sample_rate_quirk list. > > Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=203419 > Signed-off-by: Ikjoon Jang <ikjn@xxxxxxxxxxxx> Most Logitech USB headset I got needs a delay in snd_usb_ctl_msg_quirk() Have you tried to add say 20 ms delay in there? Jocke