Bug 193671
| Summary: | btattach -B /dev/ttyS1 -P qca -> Frame reassembly failed (-84) | ||
|---|---|---|---|
| Product: | Drivers | Reporter: | Dmitry (nrndda) |
| Component: | Bluetooth | Assignee: | linux-bluetooth (linux-bluetooth) |
| Status: | RESOLVED OBSOLETE | ||
| Severity: | normal | CC: | nrndda |
| Priority: | P1 | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Kernel Version: | <4.9.*,4.10-rc6 | Subsystem: | |
| Regression: | No | Bisected commit-id: | |
| Attachments: | ACPI BT part | ||
Created attachment 253591 [details] ACPI BT part Dell Venue 11 Pro has Dell Wireless 1538, which is QCA6234 SIP module. WiFi works, but Bluetooth doesn't. It is recognized by kernel: 80860F0A:00: ttyS1 at MMIO 0x9094d000 (irq = 183, base_baud = 2764800) is a 16550A But then, doing `btattach -B /dev/ttyS1 -P qca` gives this: ROME setup Set UART speed to 3000000 Frame reassembly failed (-84) hci1 command 0xfc00 tx timeout Failed to read version of ROME (-110) Failed to get version 0xffffff92 ACPI says that it uses 115200 speed, but bt QCA protocol tries 3000000. Windows drivers mention 115200 as initial speed as well. Also after btattach number of interrupts rises and is claimed by serial: 183: 2 1 0 0 IO-APIC 39-fasteoi serial