From: Nick Pelly Date: Tue, 22 Sep 2009 22:19:46 +0000 (-0700) Subject: Bluetooth: Fallback to SCO on error code 0x10 (Connection Accept Timeout). X-Git-Tag: firefly_0821_release~11671 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=df28bc9c1957170dbf796063853a4a1aee1af6ac;p=firefly-linux-kernel-4.4.55.git Bluetooth: Fallback to SCO on error code 0x10 (Connection Accept Timeout). This is to support the Motorola HF850 carkit which reports the error code 0x10 for an eSCO attempt, even though it advertises eSCO support. Here is the hcidump: 2009-09-22 15:40:24.492391 < HCI Command: Setup Synchronous Connection (0x01|0x0028) plen 17 handle 1 voice setting 0x0060 2009-09-22 15:40:24.493002 > HCI Event: Command Status (0x0f) plen 4 Setup Synchronous Connection (0x01|0x0028) status 0x00 ncmd 1 2009-09-22 15:40:30.594869 > HCI Event: Synchronous Connect Complete (0x2c) plen 17 status 0x10 handle 257 bdaddr 00:50:CD:20:C6:84 type eSCO Error: Connection Accept Timeout Exceeded With this patch we will retry with a SCO connection, which succeeds. Unfortunately the Moto HF850 also takes 5 seconds to return the error for the eSCO attempt, so it will still take 5 seconds to fallback to SCO with this patch. Signed-off-by: Nick Pelly --- diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c index 5c495893bc07..10edd1a71f08 100644 --- a/net/bluetooth/hci_event.c +++ b/net/bluetooth/hci_event.c @@ -1698,6 +1698,7 @@ static inline void hci_sync_conn_complete_evt(struct hci_dev *hdev, struct sk_bu hci_conn_add_sysfs(conn); break; + case 0x10: /* Connection Accept Timeout */ case 0x1c: /* SCO interval rejected */ case 0x1a: /* unsupported feature */ case 0x1f: /* Unspecified error */