It will set up SCO after all CVSD eSCO attempts failure, but still fails to setup SCO finally due to wrong D1/D0 @retrans_effort within @esco_param_cvsd, so change it from 0x1 to 0xff to avoid Invalid HCI Command Parameters error. < HCI Command: Setup Synchrono.. (0x01|0x0028) plen 17 #3427 Handle: 3 Transmit bandwidth: 8000 Receive bandwidth: 8000 Max latency: 65535 Setting: 0x0060 Input Coding: Linear Input Data Format: 2's complement Input Sample Size: 16-bit # of bits padding at MSB: 0 Air Coding Format: CVSD Retransmission effort: Optimize for power consumption (0x01) Packet type: 0x03c4 HV3 may be used 2-EV3 may not be used 3-EV3 may not be used 2-EV5 may not be used 3-EV5 may not be used > HCI Event: Command Status (0x0f) plen 4 #3428 Setup Synchronous Connection (0x01|0x0028) ncmd 1 Status: Success (0x00) > HCI Event: Synchronous Connect Comp.. (0x2c) plen 17 #3429 Status: Invalid HCI Command Parameters (0x12) Handle: 0 Address: 14:3F:A6:47:56:15 (OUI 14-3F-A6) Link type: SCO (0x00) Transmission interval: 0x00 Retransmission window: 0x00 RX packet length: 0 TX packet length: 0 Air mode: u-law log (0x00) Signed-off-by: Zijun Hu <quic_zijuhu@xxxxxxxxxxx> --- net/bluetooth/hci_conn.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c index 7829433d54c1..2627d5ac15d6 100644 --- a/net/bluetooth/hci_conn.c +++ b/net/bluetooth/hci_conn.c @@ -45,8 +45,8 @@ static const struct sco_param esco_param_cvsd[] = { { EDR_ESCO_MASK & ~ESCO_2EV3, 0x000a, 0x01 }, /* S3 */ { EDR_ESCO_MASK & ~ESCO_2EV3, 0x0007, 0x01 }, /* S2 */ { EDR_ESCO_MASK | ESCO_EV3, 0x0007, 0x01 }, /* S1 */ - { EDR_ESCO_MASK | ESCO_HV3, 0xffff, 0x01 }, /* D1 */ - { EDR_ESCO_MASK | ESCO_HV1, 0xffff, 0x01 }, /* D0 */ + { EDR_ESCO_MASK | ESCO_HV3, 0xffff, 0xff }, /* D1 */ + { EDR_ESCO_MASK | ESCO_HV1, 0xffff, 0xff }, /* D0 */ }; static const struct sco_param sco_param_cvsd[] = { -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project