Don't trigger device notifications when Steam Deck backlight changes
diff --git a/src/hidapi/SDL_hidapi.c b/src/hidapi/SDL_hidapi.c
index 9b25742..3808ceb 100644
--- a/src/hidapi/SDL_hidapi.c
+++ b/src/hidapi/SDL_hidapi.c
@@ -416,7 +416,10 @@ HIDAPI_UpdateDiscovery()
const char *action = NULL;
action = usyms->udev_device_get_action(pUdevDevice);
if (!action || SDL_strcmp(action, "add") == 0 || SDL_strcmp(action, "remove") == 0) {
- ++SDL_HIDAPI_discovery.m_unDeviceChangeCounter;
+ const char *subsystem = usyms->udev_device_get_subsystem(pUdevDevice);
+ if (!subsystem || SDL_strcmp(subsystem, "backlight") != 0) {
+ ++SDL_HIDAPI_discovery.m_unDeviceChangeCounter;
+ }
}
usyms->udev_device_unref(pUdevDevice);
}