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Resolve device name over GATT for devices that advertise none

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After connecting and discovering services, if the device advertised no name,
read the GAP Device Name characteristic (0x2A00) and store it, so the device
page and service-list header show the real name instead of "(no name)".
Runs once on the worker thread right after service discovery, reusing the
existing read path; skipped when an advertised name is already present.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01LEaD4ZeAfvWLBUxXp8G11r
This commit is contained in:
andy
2026-09-10 23:50:00 +01:00
co-authored by Claude Fable 5.1
parent 99d65f674d
commit def0fc070b
1 changed files with 27 additions and 0 deletions
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bt_inspector/bt_inspector.c
+27
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@@ -597,6 +597,32 @@ static uint16_t char_end_handle(App* app) {
return app->services[app->svc_sel].end;
}
// If the device advertised no name, read the GAP Device Name (0x2A00) over the
// connection so the device page and service list show its real name, not just
// the vendor. Runs on the worker thread right after service discovery.
static void resolve_name(App* app) {
if(app->dev.name[0]) return; // already have an advertised name
for(int i = 0; i < app->svc_count; i++) {
BcService* s = &app->services[i];
if(!(s->uuid_len == 2 && (s->uuid[0] | (s->uuid[1] << 8)) == 0x1800)) continue; // GAP
BcChar tmp[8];
int n = bc_discover_chars(app->bc, s, tmp, COUNT_OF(tmp));
for(int k = 0; k < n; k++) {
uint16_t u = tmp[k].uuid_len == 2 ? (tmp[k].uuid[0] | (tmp[k].uuid[1] << 8)) : 0;
if(u != 0x2A00 || !(tmp[k].props & CHAR_PROP_READ)) continue;
uint8_t val[BC_NAME_MAX + 1];
int len = bc_read(app->bc, tmp[k].value_handle, val, BC_NAME_MAX);
if(len > 0) {
memcpy(app->dev.name, val, len);
app->dev.name[len] = 0;
app_log(app, "NAME resolved: %s", app->dev.name);
}
return;
}
return; // found GAP but no readable name
}
}
static void do_info(App* app) {
furi_string_printf(app->info_text, "%s\nMTU %u\n", dev_label(&app->dev), bc_mtu(app->bc));
FuriString* label = furi_string_alloc();
@@ -645,6 +671,7 @@ static int32_t worker_thread(void* ctx) {
int n = bc_discover_services(app->bc, app->services, BC_MAX_SERVICES);
app->svc_count = n < 0 ? 0 : n;
ok = n >= 0;
if(ok) resolve_name(app);
} break;
case JobChars: {
int n = bc_discover_chars(app->bc, &app->services[app->svc_sel], app->chars, BC_MAX_CHARS);