Hey,
I bought the Laird Connectivity Bluetooth LE-only PTS dongle listed on:
https://support.bluetooth.com/hc/en-us/articles/360049018492-What-is-the-difference-between-the-Profile-Tuning-Suite-PTS-Dongles-
as I was hoping to have an easy to use Bluetooth LE only device for testing.
But the device only shows up as a serial device under kernel 6.5 from
my distribution.
Is there anything specific that needs to be done for that device to be
usable as a Bluetooth adapter under Linux? Or does it only work with
the PTS?
I spotted the ability to run specific software on the micro-controller
itself when powered on, but nothing specific to using it as an adapter:
http://assets.lairdtech.com/home/brandworld/files/BL654%20USB%20Dongle%20User%20Guide%20v1_0.pdf
Full lsusb output for that device:
Bus 001 Device 018: ID 1915:521f Nordic Semiconductor ASA Nordic Open
DFU Bootloader
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x1915 Nordic Semiconductor ASA
idProduct 0x521f
bcdDevice 1.00
iManufacturer 1 Laird Connectivity
iProduct 2 Nordic Open DFU Bootloader
iSerial 3 E1BB9211FA41
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 0x004b
bNumInterfaces 2
bConfigurationValue 1
iConfiguration 4 Default configuration
bmAttributes 0xc0
Self Powered
MaxPower 100mA
Interface Association:
bLength 8
bDescriptorType 11
bFirstInterface 0
bInterfaceCount 2
bFunctionClass 2 Communications
bFunctionSubClass 2 Abstract (modem)
bFunctionProtocol 0
iFunction 0
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 2 Communications
bInterfaceSubClass 2 Abstract (modem)
bInterfaceProtocol 0
iInterface 0
CDC Header:
bcdCDC 1.10
CDC Call Management:
bmCapabilities 0x03
call management
use DataInterface
bDataInterface 1
CDC ACM:
bmCapabilities 0x02
line coding and serial state
CDC Union:
bMasterInterface 0
bSlaveInterface 1
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 16
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 10 CDC Data
bInterfaceSubClass 0
bInterfaceProtocol 0
iInterface 0
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 0
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 0
Device Status: 0x0001
Self Powered
Cheers
Hi Bastien,
On Mon, Nov 6, 2023 at 9:35 AM Bastien Nocera <[email protected]> wrote:
>
> Hey,
>
> I bought the Laird Connectivity Bluetooth LE-only PTS dongle listed on:
> https://support.bluetooth.com/hc/en-us/articles/360049018492-What-is-the-difference-between-the-Profile-Tuning-Suite-PTS-Dongles-
> as I was hoping to have an easy to use Bluetooth LE only device for testing.
Never tried this one, the dual-mode should work though.
> But the device only shows up as a serial device under kernel 6.5 from
> my distribution.
>
> Is there anything specific that needs to be done for that device to be
> usable as a Bluetooth adapter under Linux? Or does it only work with
> the PTS?
>
> I spotted the ability to run specific software on the micro-controller
> itself when powered on, but nothing specific to using it as an adapter:
> http://assets.lairdtech.com/home/brandworld/files/BL654%20USB%20Dongle%20User%20Guide%20v1_0.pdf
>
> Full lsusb output for that device:
> Bus 001 Device 018: ID 1915:521f Nordic Semiconductor ASA Nordic Open
> DFU Bootloader
> Device Descriptor:
> bLength 18
> bDescriptorType 1
> bcdUSB 2.00
> bDeviceClass 0
> bDeviceSubClass 0
> bDeviceProtocol 0
> bMaxPacketSize0 64
> idVendor 0x1915 Nordic Semiconductor ASA
> idProduct 0x521f
> bcdDevice 1.00
> iManufacturer 1 Laird Connectivity
> iProduct 2 Nordic Open DFU Bootloader
> iSerial 3 E1BB9211FA41
> bNumConfigurations 1
> Configuration Descriptor:
> bLength 9
> bDescriptorType 2
> wTotalLength 0x004b
> bNumInterfaces 2
> bConfigurationValue 1
> iConfiguration 4 Default configuration
> bmAttributes 0xc0
> Self Powered
> MaxPower 100mA
> Interface Association:
> bLength 8
> bDescriptorType 11
> bFirstInterface 0
> bInterfaceCount 2
> bFunctionClass 2 Communications
> bFunctionSubClass 2 Abstract (modem)
> bFunctionProtocol 0
> iFunction 0
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 0
> bAlternateSetting 0
> bNumEndpoints 1
> bInterfaceClass 2 Communications
> bInterfaceSubClass 2 Abstract (modem)
> bInterfaceProtocol 0
> iInterface 0
> CDC Header:
> bcdCDC 1.10
> CDC Call Management:
> bmCapabilities 0x03
> call management
> use DataInterface
> bDataInterface 1
> CDC ACM:
> bmCapabilities 0x02
> line coding and serial state
> CDC Union:
> bMasterInterface 0
> bSlaveInterface 1
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x82 EP 2 IN
> bmAttributes 3
> Transfer Type Interrupt
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0040 1x 64 bytes
> bInterval 16
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 1
> bAlternateSetting 0
> bNumEndpoints 2
> bInterfaceClass 10 CDC Data
> bInterfaceSubClass 0
> bInterfaceProtocol 0
> iInterface 0
> 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 0
> 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 0
> Device Status: 0x0001
> Self Powered
If it is from Nordic you might want to check if it runs Zephyr on it,
perhaps there is some special command needed to switch to standard USB
Bluetooth Class.
> Cheers
--
Luiz Augusto von Dentz