the pc-ble-driver - adapter question

RE: the pc-ble-driver - adapter question

oneguy — Tue, 12 May 2020 16:37:58 GMT

Perfect, thanks!

RE: the pc-ble-driver - adapter question

Jørgen Holmefjord — Tue, 12 May 2020 15:04:24 GMT

adapter_t::internal is just a void pointer, so technically you can assign whatever you want to it.

RE: the pc-ble-driver - adapter question

oneguy — Tue, 12 May 2020 14:27:32 GMT

Thanks. Can I assign whatever I want to "internal"?

RE: the pc-ble-driver - adapter question

Jørgen Holmefjord — Tue, 12 May 2020 13:39:04 GMT

adapter_t is just a temporary wrapper which is instantiated at the callback, you must use adapter->internal to separate the different adapters. It will always point at the same address and should work for your use-case.

RE: the pc-ble-driver - adapter question

oneguy — Fri, 08 May 2020 05:04:08 GMT

Hi Jørgen,

Thank you for your reply. The fact that one can use multiple adapters is already great news. The examples are a good starting point, however they use two separate functions (see below) instead of only one (my case).

c->setGapEventCallback([&](const uint16_t eventId, const ble_gap_evt_t *gapEvent) -> bool {
switch (eventId)
{

p->setGapEventCallback([&](const uint16_t eventId, const ble_gap_evt_t *gapEvent) {
switch (eventId)
{

In my case I'd like to distinguish between "c" and "p" based on the function's "*adapter" argument.

static void ble_evt_dispatch (adapter_t *adapter, ble_evt_t *p_ble_evt)
{

if (adapter == c) ...

if (adapter == p) ...

I find that the statement "if (adapter == c)" won't work and that I need to use "if (adapter->internal == adapter->internal)" instead. Based on code in "test_util_adapter_wrapper.cpp" it even seems that I could use "m_adapter->internal" for whatever I want...

From this discussion I'd like to find out how to do this properly.

Thanks!

RE: the pc-ble-driver - adapter question

Jørgen Holmefjord — Thu, 07 May 2020 14:51:33 GMT

Hi,

Yes, it is correct that you can use multiple adapters with one pc-ble-driver application. We have this implemented in the tests in pc-ble-driver repository, for instance, this test uses two different adapters. It is a bit hidden in different util functions.

[quote user=""]In reality I find that adapter and m_adapter is not the same.[/quote]

How often do you see this? What is it when it is not the same?

Best regards,
Jørgen