Hello, That's a good question. "Audio" is not listed even when the earbuds are connected and working. I have no explanation for that.
It looks like TxPower is not an available string in the dbus-send output: # dbus-send --print-reply --system --dest=org.bluez /org/bluez/hci0/dev_9B_1F_48_B8_55_F6 org.freedesktop.DBus.Properties.Get string:org.bluez.Device1 string:TxPower Error org.freedesktop.DBus.Error.InvalidArgs: No such property 'TxPower' The strings I have available are: Address AddressType Name Alias Class Icon Paired Trusted Blocked LegacyPairing Connected UUIDs Adapter ServicesResolved Anything else I should check? Thanks! On Mon, Oct 7, 2019 at 6:07 PM deloptes <delop...@gmail.com> wrote: > David Parker wrote: > > > # hciconfig -a > > hci0: Type: Primary Bus: USB > > BD Address: 5C:F3:70:8C:B7:98 ACL MTU: 1021:8 SCO MTU: 64:1 > > UP RUNNING PSCAN > > RX bytes:62062 acl:40 sco:0 events:3178 errors:0 > > TX bytes:499936 acl:776 sco:0 commands:1088 errors:38 > > 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: 'debian' > > Class: 0x100104 > > Service Classes: Object Transfer > > Device Class: Computer, Desktop workstation > > HCI Version: 4.0 (0x6) Revision: 0x153a > > LMP Version: 4.0 (0x6) Subversion: 0x220e > > Manufacturer: Broadcom Corporation (15) > > Under Service Classes you have only "Object Transfer" > > hci0: Type: Primary Bus: USB > BD Address: xxxxxxxxxxxx ACL MTU: 310:10 SCO MTU: 64:8 > UP RUNNING PSCAN > RX bytes:19767535 acl:62926 sco:0 events:3572 errors:0 > TX bytes:390503 acl:2479 sco:0 commands:1081 errors:0 > Features: 0xff 0xff 0x8f 0xfe 0x9b 0xff 0x59 0x83 > Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3 > Link policy: RSWITCH HOLD SNIFF PARK > Link mode: SLAVE ACCEPT > Name: 'fujitsu' > Class: 0x3c0104 > Service Classes: Rendering, Capturing, Object Transfer, Audio > Device Class: Computer, Desktop workstation > HCI Version: 2.1 (0x4) Revision: 0x12e7 > LMP Version: 2.1 (0x4) Subversion: 0x12e7 > Manufacturer: Cambridge Silicon Radio (10) > > Why is Audio not listed? > > You can get the TxPower (if lucky) from the device via DBUS Device1 > Interface > > dbus-send --print-reply --system --dest=org.bluez > /org/bluez/hci0/dev_XX_XX_XX_XX_XX_XX > org.freedesktop.DBus.Properties.Get string:org.bluez.Device1 string:TxPower > > dbus-send --print-reply --system --dest=org.bluez > /org/bluez/hci0/dev_XX_XX_XX_XX_XX_XX > org.freedesktop.DBus.Properties.GetAll string:org.bluez.Device1 > > replace dev_XX_XX_XX_XX_XX_XX with your BT MAC > > > > -- Dave Parker '11 Database & Systems Administrator Utica College Integrated Information Technology Services (315) 792-3229 Registered Linux User #408177
