Dear Yang,

Would it be possible to add rtl8821a_config.bin config file?

According to two bug reports, current state results in the following
failure:
--
[    2.574742] Bluetooth: hci0: rtl: loading rtl_bt/rtl8821a_config.bin
[    2.575137] bluetooth hci0: firmware: failed to load
rtl_bt/rtl8821a_config.bin (-2)
[    2.575143] bluetooth hci0: Direct firmware load for
rtl_bt/rtl8821a_config.bin failed with error -2
[    2.575145] Bluetooth: hci0: Failed to load
rtl_bt/rtl8821a_config.bin
--

According to bug reporter symlink of rtl8821c_config.bin to
rtl8821a_config.bin (
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=893912#32 )
solves the issue.
Or do you have this specific files and could push it upstream to
linux-firmware?


Thank you in advance.

-- 
maks