Fix for auto install bluetooth

[Antho91]

Hi David,

I've made some changes to my install.sh. So that while building the img, Bluetooth will work out of the box ;).

You could see the changes on my fork.

Side node:
I believe that if you restart retropie from the menu (the Bluetooth stops working, I didn't test this flow). Restarting from the on/off switch just works ;)

[weese]

Hi @Antho91, for the last 2 days I tried to enable bluetooth in my images, but without success. I tried with the same version of Retropie (4.7.1) and the stable kernel (5.10.105) but cannot see a hci0 device. Do you remember any special steps neccessary to enable bluetooth? With your image it works, with mine not. This is an excerpt of dmesg complaining about:

[ 23.694879] debugfs: File 'force_bredr_smp' in directory 'hci0' already present!
[ 24.529762] Bluetooth: hci0: sending frame failed (-49)

[   16.699632] RTL8723BS: module init start
[   16.699660] RTL8723BS: rtl8723bs v4.3.5.5_12290.20140916_BTCOEX20140507-4E40
[   16.699672] RTL8723BS: rtl8723bs BT-Coex version = BTCOEX20140507-4E40
[   16.720989] pnetdev = 9d3d866d
[   17.061096] RTL8723BS: rtw_ndev_init(wlan0)
[   17.063375] RTL8723BS: module init ret =0
[   18.182934] input: circuitsword as /devices/virtual/input/input6
[   18.704854] Adding 94204k swap on /var/swap.  Priority:-2 extents:1 across:94204k SSFS
[   18.813188] EXT4-fs (mmcblk0p2): resizing filesystem from 755707 to 31150592 blocks
[   19.256143] 8021q: 802.1Q VLAN Support v1.8
[   19.815253] Bluetooth: Core ver 2.22
[   19.815396] NET: Registered protocol family 31
[   19.815410] Bluetooth: HCI device and connection manager initialized
[   19.815459] Bluetooth: HCI socket layer initialized
[   19.815480] Bluetooth: L2CAP socket layer initialized
[   19.815516] Bluetooth: SCO socket layer initialized
[   20.209974] Bluetooth: HCI UART driver ver 2.3
[   20.209990] Bluetooth: HCI UART protocol H4 registered
[   20.210072] Bluetooth: HCI UART protocol Three-wire (H5) registered
[   20.210242] Bluetooth: HCI UART protocol Broadcom registered
[   20.519304] rtl8723bs: acquire FW from file:rtlwifi/rtl8723bs_nic.bin
[   23.057595] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[   23.057612] Bluetooth: BNEP filters: protocol multicast
[   23.057635] Bluetooth: BNEP socket layer initialized
[   23.694879] debugfs: File 'force_bredr_smp' in directory 'hci0' already present!
[   24.529762] Bluetooth: hci0: sending frame failed (-49)
[   28.136625] RTL8723BS: rtw_set_802_11_connect(wlan0)  fw_state = 0x00000008
[   28.344588] RTL8723BS: start auth
[   28.348548] RTL8723BS: auth success, start assoc
[   28.355260] RTL8723BS: rtw_cfg80211_indicate_connect(wlan0) BSS not found !!
[   28.355280] RTL8723BS: assoc success
[   28.366128] RTL8723BS: send eapol packet
[   28.382042] RTL8723BS: send eapol packet
[   28.382507] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[   28.560411] RTL8723BS: set pairwise key camid:4, addr:7e:ff:4d:20:03:42, kid:0, type:AES
[   28.561517] RTL8723BS: set group key camid:5, addr:7e:ff:4d:20:03:42, kid:1, type:AES

[weese]

OMG, I finally found it by comparing your image with mine on a file basis. console=serial0,115200 must be removed from /boot/cmdline.txt, I guess because serial0 is used for the Bluetooth module connection.

[Antho91]

Sorry for responding so late, I was also trying to compare the files (because I didn't know the answer to your question).

Nice find!!