Hi, the Pioneer UAC1 devices still didn't work with the recent changes, and after debugging sessions, a few issues were discovered. Below are the patches to cover those errors. Takashi === Takashi Iwai (3): ALSA: usb-audio: Fix UAC1 rate setup for secondary endpoints ALSA: usb-audio: Set sample rate for all sharing EPs on UAC1 ALSA: usb-audio: Avoid implicit feedback on Pioneer devices sound/usb/clock.c | 21 ++++++--------------- sound/usb/endpoint.c | 9 +++++++++ sound/usb/implicit.c | 17 +++++++++-------- sound/usb/quirks.c | 28 ---------------------------- 4 files changed, 24 insertions(+), 51 deletions(-) -- 2.26.2