Unable to scan on windows 10 tablet: "no such interface supported"

[ChristianPavilonis]

Describe the bug
When calling adapter.start_scan().await I get this error: Error { code: HRESULT(0x800004002), message "no such interface supported" }

It only happens on the windows 10 tablet that I'm targeting other windows devices work.

Expected behavior
I expect it to start scanning like it does on every other device I test.

Actual behavior
The error above.

Additional context
The device is a faytech "10.1 Ruggedized Tablet PC"

It runs Windows 10 enterprise LTSC.

Could it be the fact that it's an LTSC tablet that's is simply so out of date that it wont work with the windows crate?

Might be out of scope for this crate but I'm not sure how to trouble shoot this. 🤔

I made it panic so I could give you a stack trace.

thread 'tokio-runtime-worker' panicked at src\ble\discovery.rs:85:53:
called Result::unwrap() on an Err value: Other("Error { code: HRESULT(0x80004002), message: "No such interface supported" }")
stack backtrace:
0: std::panicking::begin_panic_handler
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library\std\src\panicking.rs:645
1: core::panicking::panic_fmt
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library\core\src\panicking.rs:72
2: core::result::unwrap_failed
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112/library\core\src\result.rs:1653
3: enum2$<core::result::Result<tuple$<>,enum2$btleplug::Error > >::unwrap<tuple$<>,enum2$btleplug::Error >
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112\library\core\src\result.rs:1077
4: windows_app::ble::discovery::event_based_scan::async_fn$0
at .\src\ble\discovery.rs:85
5: windows_app::main::async_block$0::closure$0::async_block$0
at .\src\main.rs:82
6: tokio::runtime::task::core::impl$6::poll::closure$0<enum2$<windows_app::main::async_block$0::closure$0::async_block_env$0>,alloc::sync::Arctokio::runtime::scheduler::multi_thread::handle::Handle,alloc::alloc::Global >
at C:\Users\fay.cargo\registry\src\index.crates.io-6f17d22bba15001f\tokio-1.35.1\src\runtime\task\core.rs:328
7: tokio::loom::std::unsafe_cell::UnsafeCell<enum2$<tokio::runtime::task::core::Stage<enum2$<windows_app::main::async_block$0::closure$0::async_block_env$0> > > >::with_mut
at C:\Users\fay.cargo\registry\src\index.crates.io-6f17d22bba15001f\tokio-1.35.1\src\loom\std\unsafe_cell.rs:16
8: tokio::runtime::task::core::Core<enum2$<windows_app::main::async_block$0::closure$0::async_block_env$0>,alloc::sync::Arctokio::runtime::scheduler::multi_thread::handle::Handle,alloc::alloc::Global >::poll<enum2$<windows_app::main::async_block$0::closure
at C:\Users\fay.cargo\registry\src\index.crates.io-6f17d22bba15001f\tokio-1.35.1\src\runtime\task\core.rs:317
9: tokio::runtime::task::harness::poll_future::closure$0<enum2$<windows_app::main::async_block$0::closure$0::async_block_env$0>,alloc::sync::Arctokio::runtime::scheduler::multi_thread::handle::Handle,alloc::alloc::Global >
at C:\Users\fay.cargo\registry\src\index.crates.io-6f17d22bba15001f\tokio-1.35.1\src\runtime\task\harness.rs:485
10: core::panic::unwind_safe::impl$23::call_once<enum2$<core::task::poll::Poll<tuple$<> > >,tokio::runtime::task::harness::poll_future::closure_env$0<enum2$<windows_app::main::async_block$0::closure$0::async_block_env$0>,alloc::sync::Arc<tokio::runtime::sched
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112\library\core\src\panic\unwind_safe.rs:272
11: std::panicking::try::do_call<core::panic::unwind_safe::AssertUnwindSafe<tokio::runtime::task::harness::poll_future::closure_env$0<enum2$<windows_app::main::async_block$0::closure$0::async_block_env$0>,alloc::sync::Arc<tokio::runtime::scheduler::multi_thre
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112\library\std\src\panicking.rs:552
12: std::panicking::try::do_catch<core::panic::unwind_safe::AssertUnwindSafe<tokio::runtime::task::harness::impl$2::complete::closure_env$0<enum2$<sqlx_core::pool::inner::spawn_maintenance_tasks::async_block_env$1<sqlx_sqlite::database::Sqlite> >,alloc::sync:
13: std::panicking::try<enum2$<core::task::poll::Poll<tuple$<> > >,core::panic::unwind_safe::AssertUnwindSafe<tokio::runtime::task::harness::poll_future::closure_env$0<enum2$<windows_app::main::async_block$0::closure$0::async_block_env$0>,alloc::sync::Arc<tok
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112\library\std\src\panicking.rs:516
14: std::panic::catch_unwind<core::panic::unwind_safe::AssertUnwindSafe<tokio::runtime::task::harness::poll_future::closure_env$0<enum2$<windows_app::main::async_block$0::closure$0::async_block_env$0>,alloc::sync::Arc<tokio::runtime::scheduler::multi_thread::
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112\library\std\src\panic.rs:142
15: tokio::runtime::task::harness::poll_future<enum2$<windows_app::main::async_block$0::closure$0::async_block_env$0>,alloc::sync::Arctokio::runtime::scheduler::multi_thread::handle::Handle,alloc::alloc::Global >
at C:\Users\fay.cargo\registry\src\index.crates.io-6f17d22bba15001f\tokio-1.35.1\src\runtime\task\harness.rs:473
16: tokio::runtime::task::harness::Harness<enum2$<windows_app::main::async_block$0::closure$0::async_block_env$0>,alloc::sync::Arctokio::runtime::scheduler::multi_thread::handle::Handle,alloc::alloc::Global >::poll_inner<enum2$<windows_app::main::async_bloc
at C:\Users\fay.cargo\registry\src\index.crates.io-6f17d22bba15001f\tokio-1.35.1\src\runtime\task\harness.rs:208
17: tokio::runtime::task::harness::Harness<enum2$<windows_app::main::async_block$0::closure$0::async_block_env$0>,alloc::sync::Arctokio::runtime::scheduler::multi_thread::handle::Handle,alloc::alloc::Global >::poll<enum2$<windows_app::main::async_block$0::c
at C:\Users\fay.cargo\registry\src\index.crates.io-6f17d22bba15001f\tokio-1.35.1\src\runtime\task\harness.rs:153
18: tokio::runtime::task::raw::poll<enum2$<windows_app::main::async_block$0::closure$0::async_block_env$0>,alloc::sync::Arctokio::runtime::scheduler::multi_thread::handle::Handle,alloc::alloc::Global >
at C:\Users\fay.cargo\registry\src\index.crates.io-6f17d22bba15001f\tokio-1.35.1\src\runtime\task\raw.rs:271
19: tokio::runtime::task::raw::RawTask::poll
at C:\Users\fay.cargo\registry\src\index.crates.io-6f17d22bba15001f\tokio-1.35.1\src\runtime\task\raw.rs:201
20: tokio::runtime::task::LocalNotified<alloc::sync::Arctokio::runtime::scheduler::multi_thread::handle::Handle,alloc::alloc::Global >::run<alloc::sync::Arctokio::runtime::scheduler::multi_thread::handle::Handle,alloc::alloc::Global >
at C:\Users\fay.cargo\registry\src\index.crates.io-6f17d22bba15001f\tokio-1.35.1\src\runtime\task\mod.rs:416
21: tokio::runtime::scheduler::multi_thread::worker::impl$1::run_task::closure$0
at C:\Users\fay.cargo\registry\src\index.crates.io-6f17d22bba15001f\tokio-1.35.1\src\runtime\scheduler\multi_thread\worker.rs:576
22: tokio::runtime::coop::with_budget
at C:\Users\fay.cargo\registry\src\index.crates.io-6f17d22bba15001f\tokio-1.35.1\src\runtime\coop.rs:107
23: tokio::runtime::coop::budget
at C:\Users\fay.cargo\registry\src\index.crates.io-6f17d22bba15001f\tokio-1.35.1\src\runtime\coop.rs:73
24: tokio::runtime::scheduler::multi_thread::worker::Context::run_task
at C:\Users\fay.cargo\registry\src\index.crates.io-6f17d22bba15001f\tokio-1.35.1\src\runtime\scheduler\multi_thread\worker.rs:575
25: tokio::runtime::scheduler::multi_thread::worker::Context::run
at C:\Users\fay.cargo\registry\src\index.crates.io-6f17d22bba15001f\tokio-1.35.1\src\runtime\scheduler\multi_thread\worker.rs:526
26: tokio::runtime::scheduler::multi_thread::worker::run::closure$0::closure$0
at C:\Users\fay.cargo\registry\src\index.crates.io-6f17d22bba15001f\tokio-1.35.1\src\runtime\scheduler\multi_thread\worker.rs:491
27: tokio::runtime::context::scoped::Scoped<enum2$tokio::runtime::scheduler::Context >::set<enum2$tokio::runtime::scheduler::Context,tokio::runtime::scheduler::multi_thread::worker::run::closure$0::closure_env$0,tuple$<> >
at C:\Users\fay.cargo\registry\src\index.crates.io-6f17d22bba15001f\tokio-1.35.1\src\runtime\context\scoped.rs:40
28: tokio::runtime::context::set_scheduler::closure$0<tuple$<>,tokio::runtime::scheduler::multi_thread::worker::run::closure$0::closure_env$0>
at C:\Users\fay.cargo\registry\src\index.crates.io-6f17d22bba15001f\tokio-1.35.1\src\runtime\context.rs:176
29: std::thread::local::LocalKeytokio::runtime::context::Context::try_with<tokio::runtime::context::Context,tokio::runtime::context::set_scheduler::closure_env$0<tuple$<>,tokio::runtime::scheduler::multi_thread::worker::run::closure$0::closure_env$0>,tuple$
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112\library\std\src\thread\local.rs:270
30: std::thread::local::LocalKeytokio::runtime::context::Context::with<tokio::runtime::context::Context,tokio::runtime::context::set_scheduler::closure_env$0<tuple$<>,tokio::runtime::scheduler::multi_thread::worker::run::closure$0::closure_env$0>,tuple$<> >
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112\library\std\src\thread\local.rs:246
31: tokio::runtime::context::set_scheduler<tuple$<>,tokio::runtime::scheduler::multi_thread::worker::run::closure$0::closure_env$0>
at C:\Users\fay.cargo\registry\src\index.crates.io-6f17d22bba15001f\tokio-1.35.1\src\runtime\context.rs:176
32: tokio::runtime::scheduler::multi_thread::worker::run::closure$0
at C:\Users\fay.cargo\registry\src\index.crates.io-6f17d22bba15001f\tokio-1.35.1\src\runtime\scheduler\multi_thread\worker.rs:486
33: tokio::runtime::context::runtime::enter_runtime<tokio::runtime::scheduler::multi_thread::worker::run::closure_env$0,tuple$<> >
at C:\Users\fay.cargo\registry\src\index.crates.io-6f17d22bba15001f\tokio-1.35.1\src\runtime\context\runtime.rs:65
34: tokio::runtime::scheduler::multi_thread::worker::run
at C:\Users\fay.cargo\registry\src\index.crates.io-6f17d22bba15001f\tokio-1.35.1\src\runtime\scheduler\multi_thread\worker.rs:478
35: tokio::runtime::scheduler::multi_thread::worker::impl$0::launch::closure$0
at C:\Users\fay.cargo\registry\src\index.crates.io-6f17d22bba15001f\tokio-1.35.1\src\runtime\scheduler\multi_thread\worker.rs:447
36: tokio::runtime::blocking::task::impl$2::poll<tokio::runtime::scheduler::multi_thread::worker::impl$0::launch::closure_env$0,tuple$<> >
at C:\Users\fay.cargo\registry\src\index.crates.io-6f17d22bba15001f\tokio-1.35.1\src\runtime\blocking\task.rs:42
37: tokio::runtime::task::core::impl$6::poll::closure$0<tokio::runtime::blocking::task::BlockingTasktokio::runtime::scheduler::multi_thread::worker::impl$0::launch::closure_env$0,tokio::runtime::blocking::schedule::BlockingSchedule>
at C:\Users\fay.cargo\registry\src\index.crates.io-6f17d22bba15001f\tokio-1.35.1\src\runtime\task\core.rs:328
38: tokio::loom::std::unsafe_cell::UnsafeCell<enum2$<tokio::runtime::task::core::Stage<tokio::runtime::blocking::task::BlockingTasktokio::runtime::scheduler::multi_thread::worker::impl$0::launch::closure_env$0 > > >::with_mut
at C:\Users\fay.cargo\registry\src\index.crates.io-6f17d22bba15001f\tokio-1.35.1\src\loom\std\unsafe_cell.rs:16
39: tokio::runtime::task::core::Core<tokio::runtime::blocking::task::BlockingTasktokio::runtime::scheduler::multi_thread::worker::impl$0::launch::closure_env$0,tokio::runtime::blocking::schedule::BlockingSchedule>::poll<tokio::runtime::blocking::task::Block
at C:\Users\fay.cargo\registry\src\index.crates.io-6f17d22bba15001f\tokio-1.35.1\src\runtime\task\core.rs:317
40: tokio::runtime::task::harness::poll_future::closure$0<tokio::runtime::blocking::task::BlockingTasktokio::runtime::scheduler::multi_thread::worker::impl$0::launch::closure_env$0,tokio::runtime::blocking::schedule::BlockingSchedule>
at C:\Users\fay.cargo\registry\src\index.crates.io-6f17d22bba15001f\tokio-1.35.1\src\runtime\task\harness.rs:485
41: core::panic::unwind_safe::impl$23::call_once<enum2$<core::task::poll::Poll<tuple$<> > >,tokio::runtime::task::harness::poll_future::closure_env$0<tokio::runtime::blocking::task::BlockingTask<tokio::runtime::scheduler::multi_thread::worker::impl$0::launch:
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112\library\core\src\panic\unwind_safe.rs:272
42: std::panicking::try::do_call<core::panic::unwind_safe::AssertUnwindSafe<tokio::runtime::task::harness::poll_future::closure_env$0<tokio::runtime::blocking::task::BlockingTasktokio::runtime::scheduler::multi_thread::worker::impl$0::launch::closure_env$0,
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112\library\std\src\panicking.rs:552
43: std::panicking::try::do_catch<core::panic::unwind_safe::AssertUnwindSafe<tokio::sync::task::atomic_waker::impl$2::do_register::closure_env$4<ref$core::task::wake::Waker > >,tuple$<> >
44: std::panicking::try<enum2$<core::task::poll::Poll<tuple$<> > >,core::panic::unwind_safe::AssertUnwindSafe<tokio::runtime::task::harness::poll_future::closure_env$0<tokio::runtime::blocking::task::BlockingTask<tokio::runtime::scheduler::multi_thread::worke
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112\library\std\src\panicking.rs:516
45: std::panic::catch_unwind<core::panic::unwind_safe::AssertUnwindSafe<tokio::runtime::task::harness::poll_future::closure_env$0<tokio::runtime::blocking::task::BlockingTasktokio::runtime::scheduler::multi_thread::worker::impl$0::launch::closure_env$0,toki
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112\library\std\src\panic.rs:142
46: tokio::runtime::task::harness::poll_future<tokio::runtime::blocking::task::BlockingTasktokio::runtime::scheduler::multi_thread::worker::impl$0::launch::closure_env$0,tokio::runtime::blocking::schedule::BlockingSchedule>
at C:\Users\fay.cargo\registry\src\index.crates.io-6f17d22bba15001f\tokio-1.35.1\src\runtime\task\harness.rs:473
47: tokio::runtime::task::harness::Harness<tokio::runtime::blocking::task::BlockingTasktokio::runtime::scheduler::multi_thread::worker::impl$0::launch::closure_env$0,tokio::runtime::blocking::schedule::BlockingSchedule>::poll_inner<tokio::runtime::blocking:
at C:\Users\fay.cargo\registry\src\index.crates.io-6f17d22bba15001f\tokio-1.35.1\src\runtime\task\harness.rs:208
48: tokio::runtime::task::harness::Harness<tokio::runtime::blocking::task::BlockingTasktokio::runtime::scheduler::multi_thread::worker::impl$0::launch::closure_env$0,tokio::runtime::blocking::schedule::BlockingSchedule>::poll<tokio::runtime::blocking::task:
at C:\Users\fay.cargo\registry\src\index.crates.io-6f17d22bba15001f\tokio-1.35.1\src\runtime\task\harness.rs:153
49: tokio::runtime::task::raw::poll<tokio::runtime::blocking::task::BlockingTasktokio::runtime::scheduler::multi_thread::worker::impl$0::launch::closure_env$0,tokio::runtime::blocking::schedule::BlockingSchedule>
at C:\Users\fay.cargo\registry\src\index.crates.io-6f17d22bba15001f\tokio-1.35.1\src\runtime\task\raw.rs:271
50: tokio::runtime::task::raw::RawTask::poll
at C:\Users\fay.cargo\registry\src\index.crates.io-6f17d22bba15001f\tokio-1.35.1\src\runtime\task\raw.rs:201
51: tokio::runtime::task::UnownedTasktokio::runtime::blocking::schedule::BlockingSchedule::runtokio::runtime::blocking::schedule::BlockingSchedule
at C:\Users\fay.cargo\registry\src\index.crates.io-6f17d22bba15001f\tokio-1.35.1\src\runtime\task\mod.rs:453
52: tokio::runtime::blocking::pool::Task::run
at C:\Users\fay.cargo\registry\src\index.crates.io-6f17d22bba15001f\tokio-1.35.1\src\runtime\blocking\pool.rs:159
53: tokio::runtime::blocking::pool::Inner::run
at C:\Users\fay.cargo\registry\src\index.crates.io-6f17d22bba15001f\tokio-1.35.1\src\runtime\blocking\pool.rs:513
54: tokio::runtime::blocking::pool::impl$6::spawn_thread::closure$0
at C:\Users\fay.cargo\registry\src\index.crates.io-6f17d22bba15001f\tokio-1.35.1\src\runtime\blocking\pool.rs:471
55: core::hint::black_box
at /rustc/82e1608dfa6e0b5569232559e3d385fea5a93112\library\core\src\hint.rs:286

[qdot]

What's the build version of that windows 10 release?

[ChristianPavilonis]

What's the build version of that windows 10 release?

Version: 1809
OS build 17763.5329

[ChristianPavilonis]

🤔 Perhaps this is why it fails for me. According to this microsoft doc The AllowExtendedAdvertisements property was introduced in version 2004, my tablet is on 1809. I'm assuming that's what's being set here in the crate?

Probably not worth it to fix in the crate, but if you have advice or a workaround I'd appreciate it 😅

[ChristianPavilonis]

Update: I removed that line in my fork and I'm able to scan.

[qdot]

Huh, interesting. I wonder if we can do some sort of existence check around that.

[ChristianPavilonis]

Yeah up to you if you want to support a 6 year old version of windows. ¯_(ツ)_/¯

[wuwbobo2021]

I've got the same error when testing on Windows 10 LTSC 2019, which is supported by Microsoft until 2029 (longer than LTSC 2021). Version 1809, 17763.5936.

Would you please describe OS version requirements in the documentation before fixing this issue?

"btleplug is a Bluetooth Low Energy (BLE) central module library for Rust. It currently supports Windows 10, macOS (and possibly iOS) and Linux (BlueZ)."

Does it support only Windows 10 2004 and later, but not Windows 11?

[wuwbobo2021]

Workaround in my app: in btleplug-0.11.5\src\winrtble\ble\watcher.rs, line 54, change self.watcher.SetAllowExtendedAdvertisements(true)?; to let _ = self.watcher.SetAllowExtendedAdvertisements(true);.

https://github.com/wuwbobo2021/rtl8762c-ble-uart/blob/main/host-term/README.md

Another interesting problem: when bluetooth is disabled on Windows 10, the adapter is still available in btleplug (start_scan() can be called); is_connected() of the peripheral still returns true, but writing a characteristic will directly fail; disconnect event is received after enabling bluetooth (in Windows) again.

And I don't know how to get the ATT_MTU value of the connection (maybe not an issue of btleplug) to determine the maximum frame size to be sent.