https://bugzilla.kernel.org/show_bug.cgi?id=60824 Andrés Rodríguez (hello@andres.codes) changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |hello@andres.codes --- Comment #79 from Andrés Rodríguez (hello@andres.codes) --- (In reply to Swyter from comment #78) > Okay, so after investigating the problem in-depth (and doing a bunch of > heavy testing) I made what I think is a leaner and meaner +20/-8 line patch, > and submitted it for kernel review. It would be great if you guys could test > it and let me know if everything works correctly on your end, too: > > https://patchwork.kernel.org/patch/11619143/ I was unable to get a bcdDevice 2520 to work with this patch, even though it seems to apply the quirks: --- lsusb -v: Bus 005 Device 002: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode) Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 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 25.20 iManufacturer 0 iProduct 2 CSR8510 A10 iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 0x00b1 bNumInterfaces 2 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xa0 (Bus 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 0x83 EP 3 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0010 1x 16 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x01 EP 1 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0040 1x 64 bytes bInterval 1 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 0 bNumEndpoints 2 --- dmesg | grep CSR [ 3.449503] usb 5-1: Product: CSR8510 A10 [ 12.619478] Bluetooth: hci0: CSR: Unbranded CSR clone detected; adding workaround --- Let me know if I can help. -- You are receiving this mail because: You are the assignee for the bug.
