https://bugzilla.kernel.org/show_bug.cgi?id=60824 Swyter (swyterzone@xxxxxxxxx) changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |swyterzone@xxxxxxxxx --- Comment #77 from Swyter (swyterzone@xxxxxxxxx) --- Still having the same problem on Linux 5.7.4. 75.58, in my case it's one of these super common, round, unmarked dongles: https://web.archive.org/web/https://pl.aliexpress.com/item/33058605031.html Here's what running `hcidump -X` while doing `hciconfig hci0 up` shows; it errors out while trying to delete the stored link key. So, same problem and different bcdDevice; 75.58, sounds like someone needs to add a bunch of extra quirks: HCI sniffer - Bluetooth packet analyzer ver 5.54 device: hci0 snap_len: 1500 filter: 0xffffffffffffffff > HCI Event: Command Complete (0x0e) plen 4 Reset (0x03|0x0003) ncmd 5 status 0x00 > HCI Event: Command Complete (0x0e) plen 12 Read Local Supported Features (0x04|0x0003) ncmd 5 status 0x00 Features: 0xff 0xff 0xcd 0xfa 0xdb 0xbf 0x7b 0x87 > HCI Event: Command Complete (0x0e) plen 12 Read Local Version Information (0x04|0x0001) ncmd 5 status 0x00 HCI Version: 4.0 (0x6) HCI Revision: 0x709 LMP Version: 4.0 (0x6) LMP Subversion: 0x709 Manufacturer: Cambridge Silicon Radio (10) > HCI Event: Command Complete (0x0e) plen 10 Read BD ADDR (0x04|0x0009) ncmd 5 status 0x00 bdaddr 00:15:83:EA:<censored>:<censored> > HCI Event: Command Complete (0x0e) plen 11 Read Buffer Size (0x04|0x0005) ncmd 5 status 0x00 ACL MTU 360:4 SCO MTU 0:0 > HCI Event: Command Complete (0x0e) plen 7 Read Class of Device (0x03|0x0023) ncmd 5 status 0x00 class 0x000000 > HCI Event: Command Complete (0x0e) plen 252 Read Local Name (0x03|0x0014) ncmd 5 status 0x00 name '' > HCI Event: Command Complete (0x0e) plen 6 Read Voice Setting (0x03|0x0025) ncmd 5 status 0x00 voice setting 0x0000 > HCI Event: Command Complete (0x0e) plen 5 Read Number of Supported IAC (0x03|0x0038) ncmd 5 0000: 00 01 .. > HCI Event: Command Complete (0x0e) plen 8 Read Current IAC LAP (0x03|0x0039) ncmd 5 IAC 0x9e8b33 (General Inquiry Access Code) > HCI Event: Command Complete (0x0e) plen 4 Set Event Filter (0x03|0x0005) ncmd 5 status 0x00 > HCI Event: Command Complete (0x0e) plen 4 Write Connection Accept Timeout (0x03|0x0016) ncmd 5 status 0x00 > HCI Event: Command Complete (0x0e) plen 7 LE Read Buffer Size (0x08|0x0002) ncmd 5 status 0x00 pktlen 0x001b maxpkt 0x12 > HCI Event: Command Complete (0x0e) plen 12 LE Read Supported States (0x08|0x001c) ncmd 5 0000: 00 ff 00 3c 1f 00 00 00 00 ...<..... > HCI Event: Command Complete (0x0e) plen 68 Read Local Supported Commands (0x04|0x0002) ncmd 5 status 0x00 Commands: bfffff03feffffff0fffff1ff20fe8fe3ff78fff1c00000061f7ffff7f18 > HCI Event: Command Complete (0x0e) plen 4 Write Extended Inquiry Response (0x03|0x0052) ncmd 5 status 0x00 > HCI Event: Command Complete (0x0e) plen 4 Write Inquiry Mode (0x03|0x0045) ncmd 5 status 0x00 > HCI Event: Command Complete (0x0e) plen 5 Read Inquiry Response Transmit Power Level (0x03|0x0058) ncmd 5 status 0x00 level 8 > HCI Event: Command Complete (0x0e) plen 14 Read Local Extended Features (0x04|0x0004) ncmd 5 status 0x00 page 1 max 0 Features: 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00 > HCI Event: Command Complete (0x0e) plen 4 Set Event Mask (0x03|0x0001) ncmd 5 status 0x00 > HCI Event: Command Complete (0x0e) plen 8 Read Stored Link Key (0x03|0x000d) ncmd 5 status 0x00 max 0 num 0 > HCI Event: Command Complete (0x0e) plen 4 Write Default Link Policy Settings (0x02|0x000f) ncmd 5 status 0x00 > HCI Event: Command Complete (0x0e) plen 8 Read Page Scan Activity (0x03|0x001b) ncmd 5 status 0x00 interval 512 window 18 > HCI Event: Command Complete (0x0e) plen 5 Read Default Erroneous Data Reporting (0x03|0x005a) ncmd 5 status 0x00 reporting 0 > HCI Event: Command Complete (0x0e) plen 5 Read Page Scan Type (0x03|0x0046) ncmd 5 0000: 00 00 .. > HCI Event: Command Complete (0x0e) plen 4 LE Set Event Mask (0x08|0x0001) ncmd 5 status 0x00 > HCI Event: Command Complete (0x0e) plen 5 LE Read White List Size (0x08|0x000f) ncmd 5 0000: 00 08 .. > HCI Event: Command Complete (0x0e) plen 4 LE Clear White List (0x08|0x0010) ncmd 5 status 0x00 > HCI Event: Command Complete (0x0e) plen 6 Delete Stored Link Key (0x03|0x0012) ncmd 5 status 0x11 deleted 0 Error: Unsupported Feature or Parameter Value -- This is my `uname -a` shows. I'm just running the normal Arch Linux kernel: Linux fenix 5.7.4-arch1-1 #1 SMP PREEMPT Thu, 18 Jun 2020 16:01:07 +0000 x86_64 GNU/Linux -- This is what `lsusb -v` shows for this device. As you can see in my case it has bcdDevice 75.58: Bus 008 Device 003: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode) Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 224 Wireless bDeviceSubClass 1 Radio Frequency bDeviceProtocol 1 Bluetooth bMaxPacketSize0 64 idVendor 0x0a12 Cambridge Silicon Radio, Ltd idProduct 0x0001 Bluetooth Dongle (HCI mode) bcdDevice 75.58 iManufacturer 0 iProduct 0 iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 0x00b1 bNumInterfaces 2 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xe0 Self Powered Remote Wakeup MaxPower 100mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 3 bInterfaceClass 224 Wireless bInterfaceSubClass 1 Radio Frequency bInterfaceProtocol 1 Bluetooth iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 0 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 224 Wireless bInterfaceSubClass 1 Radio Frequency bInterfaceProtocol 1 Bluetooth iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0000 1x 0 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0000 1x 0 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 1 bNumEndpoints 2 bInterfaceClass 224 Wireless bInterfaceSubClass 1 Radio Frequency bInterfaceProtocol 1 Bluetooth iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0009 1x 9 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0009 1x 9 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 2 bNumEndpoints 2 bInterfaceClass 224 Wireless bInterfaceSubClass 1 Radio Frequency bInterfaceProtocol 1 Bluetooth iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0011 1x 17 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0011 1x 17 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 3 bNumEndpoints 2 bInterfaceClass 224 Wireless bInterfaceSubClass 1 Radio Frequency bInterfaceProtocol 1 Bluetooth iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0019 1x 25 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0019 1x 25 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 4 bNumEndpoints 2 bInterfaceClass 224 Wireless bInterfaceSubClass 1 Radio Frequency bInterfaceProtocol 1 Bluetooth iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0021 1x 33 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0021 1x 33 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 5 bNumEndpoints 2 bInterfaceClass 224 Wireless bInterfaceSubClass 1 Radio Frequency bInterfaceProtocol 1 Bluetooth iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x83 EP 3 IN bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0031 1x 49 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x03 EP 3 OUT bmAttributes 1 Transfer Type Isochronous Synch Type None Usage Type Data wMaxPacketSize 0x0031 1x 49 bytes bInterval 1 can't get debug descriptor: Resource temporarily unavailable Device Status: 0x0000 (Bus Powered) -- This is what `dmesg` shows at startup with the thingie connected: [ 293.350687] usb 8-1: new full-speed USB device number 3 using ohci-pci [ 293.528946] usb 8-1: New USB device found, idVendor=0a12, idProduct=0001, bcdDevice=75.58 [ 293.528953] usb 8-1: New USB device strings: Mfr=0, Product=0, SerialNumber=0 [ 295.680774] Bluetooth: hci0: command 0x2003 tx timeout [ 298.027478] Bluetooth: hci0: command 0x2007 tx timeout -- Seems like they have stolen bdaddr space from 00:15:83 IVT corporation. Anyway, hope that helps, let me know if anyone needs something else to diagnose to test a proper Kernel patch that gets mainlined. I'm all ears. :) -- You are receiving this mail because: You are the assignee for the bug.