Ok. Thank you. I was able to monitor traffic from Ubuntu bluetooth port and found out that my device sends advertising reports not frequently, so I did a few more tries with duplicates on NuttX ESP32 and finally was able to identify the needed string. So what is the next step? How to pair with the device?
Best regards, Petro вт, 25 квіт. 2023 р. о 20:05 Brennan Ashton <bash...@brennanashton.com> пише: > Unfortunately this is coupled to the Linux kernel Bluetooth stack since it > is relying on the User Channel of the hcisocket which let's your > application (NuttX in this case) have a virtual HCI device and temporarily > provide it largely isolated control over it (you cannot scan from the host > anymore for example). > There is a good description of this feature in the patch that introduced > it. https://marc.info/?l=linux-bluetooth&m=137757846631034&w=2 > > On Tue, Apr 25, 2023, 5:54 PM Petro Karashchenko < > petro.karashche...@gmail.com> wrote: > > > Is this going to work on OSX? Or Linux only is verified? > > > > вт, 25 квіт. 2023 р. о 19:45 Brennan Ashton <bash...@brennanashton.com> > > пише: > > > > > On Tue, Apr 25, 2023, 5:41 PM Brennan Ashton < > bash...@brennanashton.com> > > > wrote: > > > > > > > > > > > On Tue, Apr 25, 2023, 5:36 PM Petro Karashchenko < > > > > petro.karashche...@gmail.com> wrote: > > > > > > > >> Hello, > > > >> > > > >> I'm starting to experiment with NuttX BLE support. I have a device > > that > > > I > > > >> can successfully pair with my phone and I would like to try pairing > it > > > >> with > > > >> the NuttX based device. I chose ESP32 for my experiments. For now I > > > >> enabled > > > >> (and fixed) esp32-devkitc:ble configuration, but that is basically > > > all... > > > >> I > > > >> do not have much knowledge in bluetooth, but definitely want to > master > > > it. > > > >> When I'm pairing from my phone I see the device name in the list of > > > >> scanned > > > >> devices, so the device advertises some human readable string in > data. > > > Then > > > >> I'm running "bt bnep0 scan start" -> "bt bnep0 scan stop" -> "bt > bnep0 > > > >> scan > > > >> get" on my ESP32 and expecting to see some of the same human > readable > > > >> string in the printed output as I do not known the MAC address of my > > > >> device, but there is not such data sequence in "bt bnep0 scan get" > > > output. > > > >> I would appreciate some guidance for the BLE dummy like me, so I can > > > move > > > >> forward a bit. > > > >> > > > >> Best regards, > > > >> Petro > > > >> > > > > > > > > > > > > I have not touched it in a bit, but I found the sim support I added > > with > > > > the hci socket made debugging the Bluetooth stack a lot easier > because > > I > > > > could use Wireshark/btmon on the actual host machine to show all the > > hci > > > > traffic to and from the NuttX stack transparently. I highly > recommend > > > > trying that to verify there is not anything fundamentally broken. > > > > > > > > --Brennan > > > > > > > > > > I should probably have added this in more detail to the docs, but see > the > > > testing section of the PR where I added it. I think it shows exactly > what > > > you are trying to do > > > > > > https://github.com/apache/nuttx/pull/1655 > > > > > > > > > --Brennan > > > > > >
