Camera HAL Driver Discovery

Every UDDF driver library is a .so exporting one C-linkage entry point: uddf_discover_drivers(). CameraHAL scans directories, loads each .so, and matches driver names from platform config to instantiate the right drivers.

Scan, Load, and Match Drivers from Platform Config

// libraries/moduleMyModule/MyModuleLibrary.cpp

#include "uddf/ddi/discovery.hpp"
#include "modules/MyModule/MyModule.hpp"

static const ddi::DriverInfo g_info {
    .name        = "MyCameraModule",
    .description = "GMSL module driver",
    .vendor      = "My Company",
    .revision    = "1.0.0"
};

// DriverInfo.name MUST match the platform config string —
// this is how CameraHAL finds your driver

class MyEnumerator final
    : public ddi::IDriverEnumerator {
public:
    std::string_view GetName() const override
    { return "MyCameraModuleProvider"; }

    size_t GetDriverCount() const override
    { return 1; }

    const ddi::DriverInfo* GetDriverInfo(
        size_t idx) const override {
        return (idx == 0) ? &g_info : nullptr;
    }

    std::unique_ptr<ddi::IDriver> CreateDriver(
        size_t idx) override {
        return (idx == 0)
            ? std::make_unique<MyModule>()
            : nullptr;
    }
};

// The single exported C symbol — every .so needs this
extern "C"
ddi::DriverEnumeratorPtr uddf_discover_drivers() {
    return std::make_unique<MyEnumerator>();
}