How to set up a Bluetooth connection

This message will disappear after all relevant tasks have been resolved.

Semantic MediaWiki

There are 1 incomplete or pending task to finish installation of Semantic MediaWiki. An administrator or user with sufficient rights can complete it. This should be done before adding new data to avoid inconsistencies.

The printable version is no longer supported and may have rendering errors. Please update your browser bookmarks and please use the default browser print function instead.

Applicable for

STM32MP13x lines, STM32MP15x lines

1 How to setup Bluetooth[edit source]

1.1 Setup[edit source]

Check that the driver has been probed correctly in the kernel log message

[    0.923697] STM32 USART driver initialized
[    0.928711] 4000e000.serial: ttyS1 at MMIO 0x4000e000 (irq = 42, base_baud = 6046875) is a stm32-usart

Check the Bluetooth interface

 hciconfig -a
hci0:   Type: Primary  Bus: UART
       BD Address: 43:43:A1:12:1F:AC  ACL MTU: 1021:8  SCO MTU: 64:1
       DOWN 
       RX bytes:619 acl:0 sco:0 events:31 errors:0
       TX bytes:410 acl:0 sco:0 commands:31 errors:0
       Features: 0xbf 0xfe 0xcf 0xfe 0xdb 0xff 0x7b 0x87
       Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3 
       Link policy: RSWITCH SNIFF 
       Link mode: SLAVE ACCEPT

1.2 Initialize the Bluetooth interface[edit source]

 hciconfig hci0 up
 hciconfig -a
hci0:   Type: Primary  Bus: UART
       BD Address: AA:AA:AA:AA:AA:AA  ACL MTU: 1021:8  SCO MTU: 64:1
       UP RUNNING 
       RX bytes:1378 acl:0 sco:0 events:74 errors:0
       TX bytes:1186 acl:0 sco:0 commands:74 errors:0
       Features: 0xbf 0xfe 0xcf 0xfe 0xdb 0xff 0x7b 0x87
       Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3 
       Link policy: RSWITCH SNIFF 
       Link mode: SLAVE ACCEPT 
       Name: 'BlueZ 5.46'
       Class: 0x000000
       Service Classes: Unspecified
       Device Class: Miscellaneous, 
       HCI Version: 4.1 (0x7)  Revision: 0x0
       LMP Version: 4.1 (0x7)  Subversion: 0x2209
       Manufacturer: Broadcom Corporation (15)