https://bugzilla.kernel.org/show_bug.cgi?id=60824 Zijun Hu (quic_zijuhu@xxxxxxxxxxx) changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |quic_zijuhu@xxxxxxxxxxx --- Comment #239 from Zijun Hu (quic_zijuhu@xxxxxxxxxxx) --- i maybe find the root cause for this issue. the device seems a fake device actually but it is not detected as fake device. below error show it seems a fake device and HCI_QUIRK_BROKEN_FILTER_CLEAR_ALL should be set < HCI Command: Set Event Filter (0x03|0x0005) plen 1 #23 [hci0] 4.130423 Type: Clear All Filters (0x00) > HCI Event: Command Complete (0x0e) plen 4 #24 [hci0] 4.133374 Set Event Filter (0x03|0x0005) ncmd 1 Status: Invalid HCI Command Parameters (0x12) but current fake device detect logic miss this new device. < HCI Command: Read Local Version In.. (0x04|0x0001) plen 0 #1 [hci0] 4.073336 > HCI Event: Command Complete (0x0e) plen 12 #2 [hci0] 4.077324 Read Local Version Information (0x04|0x0001) ncmd 1 Status: Success (0x00) HCI version: Bluetooth 4.0 (0x06) - Revision 12576 (0x3120) LMP version: Bluetooth 4.0 (0x06) - Subversion 8891 (0x22bb) Manufacturer: Cambridge Silicon Radio (10) i will fix it as below: +++ b/drivers/bluetooth/btusb.c @@ -2155,7 +2155,7 @@ static int btusb_setup_csr(struct hci_dev *hdev) is_fake = true; else if (le16_to_cpu(rp->lmp_subver) <= 0x22bb && - le16_to_cpu(rp->hci_ver) > BLUETOOTH_VER_4_0) + le16_to_cpu(rp->hci_ver) >= BLUETOOTH_VER_4_0) is_fake = true; -- You may reply to this email to add a comment. You are receiving this mail because: You are the assignee for the bug.
