Nota: il testo in rosso è stato cancellato dalla revisione precedente, il testo in verde è stato aggiunto in questa revisione e il testo in grigio non è stato cambiato
differenze nel campo: marca
ASUSTek-Computer-Inc.
differenze nel campo: nome del modello
Broadcom BCM20702A0 Bluetooth
differenze nel campo: eventuali altri nomi del dispositivo
ASUS USB-BT400 USB Adapter Bluetooth 4.0
BCM20702A1
differenze nel campo: codice VendorID:ProductID del prodotto
0b05:17cb
differenze nel campo: anno di commercializzazione
2013
differenze nel campo: interfaccia
USB
differenze nel campo: distribuzione GNU/Linux usata per il test
debian_10 , parabola , pureos_8_0 , debian_10, parabola trisquel_10_0
differenze nel campo: testato con il seguente kernel libre
4.17.0-3-amd64, 4.19.0-9-amd64, 5.10.39-gnu-1-lts 5.10.39-gnu-1-lts, 5.4.0-124-generic
differenze nel campo: funziona con il software libero?
yes
differenze nel campo: driver liberi usati
btusb
differenze nel campo: Descrizione
[p]This device supports Bluetooth 4.0, but is backwards compatible with Bluetooth 3.0, 2.1, and 2.0.[/p]
[p]HSP/HFP headset profiles do not work, they require proprietary firmware:
[a]https://www.freedesktop.org/wiki/Software/PulseAudio/Documentation/User/Bluetooth|mention in pulseaudio docs[/a],
[a]https://bugs.freedesktop.org/show_bug.cgi?id=97064#c21|user's detailed comment[/a]
.
[/p]
[p]A2DP profile works fine (headphone functionality only).[/p]
[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 byteshttps://www.freedesktop.org/wiki/Software/PulseAudio/Documentation/User/Bluetooth/#hspproblem:audioissilentorskipping
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]
[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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