Differences between the revision of 11:12, 8 August 2020, created by parajh7, and the revision of 19:20, 24 February 2019
Notice: the text in red has been deleted from the previous revision, the text in green has been added in this revision and the text in gray has not been changed.
Unterschiede: Hersteller
ASUSTek-Computer-Inc.
Unterschiede: Modellbezeichnung
Broadcom BCM20702A0 Bluetooth
Unterschiede: Andere mögliche Gerätenamen
ASUS USB-BT400 USB Adapter Bluetooth 4.0
BCM20702A1
Unterschiede: Hersteller-ID:Produkt-ID des Gerätes
0b05:17cb
Unterschiede: Jahr der Markteinführung
2013
Unterschiede: Schnittstelle
USB
Unterschiede: Verwendete GNU/Linux-Distribution für die Überprüfung
pureos_8_0 , debian_10
Unterschiede: Überbrüft mit folgendem freien Betriebssystemkern (Libre Kernel)
4.17.0-3-amd64 4.17.0-3-amd64, 4.19.0-9-amd64
Unterschiede: Funktioniert mit Freie Software?
yes
Unterschiede: Verwendete Freie Firmware/Treiber
btusb
Unterschiede: Beschreibung
This [p]This device supports Bluetooth 4.0, but is backwards compatible with Bluetooth 3.0, 2.1, and 2.0. 2.0.[/p]

Output of "lsusb -v": [p]lsusb -v[/p]
[code]Bus 007 Device 002: ID 0b05:17cb ASUSTek Computer, Inc. Broadcom BCM20702A0 Bluetooth
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 255 Vendor Specific Class
bDeviceSubClass 1
bDeviceProtocol 1
bMaxPacketSize0 64
idVendor 0x0b05 ASUSTek Computer, Inc.
idProduct 0x17cb Broadcom BCM20702A0 Bluetooth
bcdDevice 1.12
iManufacturer 1 Broadcom Corp
iProduct 2 BCM20702A0
iSerial 3 5CF3708FFF77
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 218
bNumInterfaces 4
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 255 Vendor Specific Class
bInterfaceSubClass 1
bInterfaceProtocol 1
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 0x0010 1x 16 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 1
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 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 1
bInterfaceProtocol 1
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 255 Vendor Specific Class
bInterfaceSubClass 1
bInterfaceProtocol 1
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 255 Vendor Specific Class
bInterfaceSubClass 1
bInterfaceProtocol 1
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 255 Vendor Specific Class
bInterfaceSubClass 1
bInterfaceProtocol 1
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 255 Vendor Specific Class
bInterfaceSubClass 1
bInterfaceProtocol 1
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 255 Vendor Specific Class
bInterfaceSubClass 1
bInterfaceProtocol 1
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
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 255 Vendor Specific Class
bInterfaceSubClass 255 Vendor Specific Subclass
bInterfaceProtocol 255 Vendor Specific Protocol
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x84 EP 4 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0020 1x 32 bytes
bInterval 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x04 EP 4 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0020 1x 32 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 3
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 254 Application Specific Interface
bInterfaceSubClass 1 Device Firmware Update
bInterfaceProtocol 1
iInterface 0
Device Firmware Upgrade Interface Descriptor:
bLength 9
bDescriptorType 33
bmAttributes 5
Will Not Detach
Manifestation Tolerant
Upload Unsupported
Download Supported
wDetachTimeout 5000 milliseconds
wTransferSize 64 bytes
bcdDFUVersion 1.10
Device Status: 0x0000
(Bus Powered)
[/code]

Abridged output of "hwinfo": [p]hwinfo[/p]
[code]05: USB 00.1: 0000 Unclassified device
[Created at usb.122]
Unique ID: 4m7i.GCgRyhKh3y1
Parent ID: BSFT.gkSaZmjGyhD
SysFS ID: /devices/pci0000:00/0000:00:1d.1/usb7/7-1/7-1:1.1
SysFS BusID: 7-1:1.1
Hardware Class: unknown
Model: "ASUSTek Broadcom BCM20702A0 Bluetooth"
Hotplug: USB
Vendor: usb 0x0b05 "ASUSTek Computer, Inc."
Device: usb 0x17cb "Broadcom BCM20702A0 Bluetooth"
Revision: "1.12"
Serial ID: "5CF3708FFF77"
Driver: "btusb"
Driver Modules: "btusb"
Speed: 12 Mbps
Module Alias: "usb:v0B05p17CBd0112dcFFdsc01dp01icFFisc01ip01in01"
Driver Info #0:
Driver Status: btusb is active
Driver Activation Cmd: "modprobe btusb"
Config Status: cfg=new, avail=yes, need=no, active=unknown
Attached to: #9 (Hub)
[/code]
[p]dmesg[/p]
[code][ 273.713778] NET: Registered protocol family 31
[ 273.713778] Bluetooth: HCI device and connection manager initialized
[ 273.713781] Bluetooth: HCI socket layer initialized
[ 273.713783] Bluetooth: L2CAP socket layer initialized
[ 273.713787] Bluetooth: SCO socket layer initialized
[ 273.741189] usbcore: registered new interface driver btusb
[ 273.853511] Bluetooth: hci0: BCM: chip id 63
[ 273.854443] Bluetooth: hci0: BCM: features 0x07
[ 273.870493] Bluetooth: hci0: BCM20702A
[ 273.871420] Bluetooth: hci0: BCM20702A1 (001.002.014) build 0000
[ 273.871498] bluetooth hci0: firmware: failed to load brcm/BCM20702A1-0489-e052.hcd (-2)
[ 273.871507] bluetooth hci0: Direct firmware load for brcm/BCM20702A1-0489-e052.hcd failed with error -2
[ 273.871513] Bluetooth: hci0: BCM: Patch brcm/BCM20702A1-0489-e052.hcd not found[/code]
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