From: Zenm Chen <zenmchen@gmail.com>
To: max.chou@realtek.com
Cc: hildawu@realtek.com, linux-bluetooth@vger.kernel.org,
pkshih@realtek.com, zenmchen@gmail.com
Subject: RE: bluetooth hci0: Direct firmware load for rtl_bt/rtl8761a_config.bin failed with error -2
Date: Tue, 5 May 2026 15:25:33 +0800 [thread overview]
Message-ID: <20260505072538.9503-1-zenmchen@gmail.com> (raw)
In-Reply-To: <d6274785e3644bfbb0bf6a3c6a6bbff3@realtek.com>
Max Chou <max.chou@realtek.com> 於 2026年4月30日週四 上午10:22寫道：
>
> Hi!
> The config file rtl8761a_config is not mandatory. In ic_id_table[],
> .config_needed is indeed set to false. Please rest assured regarding
> this matter.
> If you would like to fix the warning message, it would be good to
> send a patch to add rtl8761a_config.bin containing only the header
> to the linux-firmware repository.
>
> BRs,
> Max
>
Hi Max,
Thank you for the clarification! After adding an empty config file,
Bluetooth is working as usual and the error message doesn't appear anymore.
$ od -t x1 /lib/firmware/rtl_bt/rtl8761bu_config.bin
0000000 55 ab 23 87 00 00
0000006
$ ls /lib/firmware/rtl_bt/rtl8761{a,bu}_config.bin
lrwxrwxrwx 1 root root 20 Apr 30 22:24 /lib/firmware/rtl_bt/rtl8761a_config.bin -> rtl8761bu_config.bin
-rw-r--r-- 1 root root 6 Mar 5 01:40 /lib/firmware/rtl_bt/rtl8761bu_config.bin
$ dmesg
[ 550.038863] Bluetooth: Core ver 2.22
[ 550.038897] NET: Registered PF_BLUETOOTH protocol family
[ 550.038899] Bluetooth: HCI device and connection manager initialized
[ 550.038904] Bluetooth: HCI socket layer initialized
[ 550.038906] Bluetooth: L2CAP socket layer initialized
[ 550.038910] Bluetooth: SCO socket layer initialized
[ 550.070541] usbcore: registered new interface driver btusb
[ 550.077485] Bluetooth: hci0: RTL: examining hci_ver=06 hci_rev=000a lmp_ver=06 lmp_subver=8761
[ 550.079510] Bluetooth: hci0: RTL: rom_version status=0 version=3
[ 550.081469] Bluetooth: hci0: RTL: btrtl_initialize: key id 0
[ 550.081475] Bluetooth: hci0: RTL: loading rtl_bt/rtl8761a_fw.bin
[ 550.083538] Bluetooth: hci0: RTL: loading rtl_bt/rtl8761a_config.bin
[ 550.083853] Bluetooth: hci0: RTL: cfg_sz 6, total sz 22646
[ 550.167668] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 550.167674] Bluetooth: BNEP filters: protocol multicast
[ 550.167679] Bluetooth: BNEP socket layer initialized
[ 550.659710] Bluetooth: hci0: RTL: fw version 0x0e3e4380
[ 550.800287] Bluetooth: MGMT ver 1.22
[ 550.819174] NET: Registered PF_ALG protocol family
[ 550.857408] Bluetooth: RFCOMM TTY layer initialized
[ 550.857422] Bluetooth: RFCOMM socket layer initialized
[ 550.857433] Bluetooth: RFCOMM ver 1.11
prev parent reply other threads:[~2026-05-05 7:25 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-29 19:10 bluetooth hci0: Direct firmware load for rtl_bt/rtl8761a_config.bin failed with error -2 Zenm Chen
2026-04-30 2:22 ` Max Chou
2026-05-05 7:25 ` Zenm Chen [this message]
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