ubuntu 16.04 - Bluetooth missing

penguin

Bluetooth support of AP6356S in Ubuntu has long been a nasty bug. We took the effort
to contact with Rockchip, but got little help.

In the Ubuntu 18.04 (which can be downloaded from Baidu Pan, soon be available
in Google Drive), this bug still exists.

root@firefly:/usr/local/bin# hciconfig -a
hci0:   Type: Primary  Bus: UART
        BD Address: 11:A7:37:7D:EF:06  ACL MTU: 1021:8  SCO MTU: 64:1
        UP RUNNING
        RX bytes:883 acl:0 sco:0 events:64 errors:0
        TX bytes:5561 acl:0 sco:0 commands:68 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

root@firefly:/usr/local/bin# hcitool scan
Scanning ...
[  810.248285] Bluetooth: hci0: Frame reassembly failed (-84)
[  810.248983] Bluetooth: hci0: Frame reassembly failed (-84)
[  812.253433] Bluetooth: hci0 command 0x0401 tx timeout
Inquiry failed: Connection timed out