Hello! On Saturday 09 October 2021 06:10:17 sean.wang@xxxxxxxxxxxx wrote: > From: Sean Wang <sean.wang@xxxxxxxxxxxx> > > add MT7921s Bluetooth support ... > + {SDIO_DEVICE(SDIO_VENDOR_ID_MEDIATEK, SDIO_DEVICE_ID_MEDIATEK_MT7961), > + .driver_data = (kernel_ulong_t)&mt7961_data }, You have there probably a typo (MT7921 vs MT7961).