libcamera: device_enumerator_udev: Enumerate USB devices

Add experimental support for USB device enumeration in the udev-based
device enumerator.

Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>

2 files changed, 6 insertions, 0 deletions

diff --git a/include/libcamera/internal/device_enumerator.h b/include/libcamera/internal/device_enumerator.h
index 8df6a3e2..1d6dbcb1 100644
--- a/include/libcamera/internal/device_enumerator.h
+++ b/include/libcamera/internal/device_enumerator.h
@@ -18,6 +18,7 @@
 namespace libcamera {
 
 class MediaDevice;
+class USBDevice;
 
 class DeviceEnumerator
 {
@@ -38,8 +39,12 @@ protected:
 	void addMediaDevice(std::unique_ptr<MediaDevice> media);
 	void removeMediaDevice(const std::string &deviceNode);
 
+	void addUSBDevice(std::unique_ptr<USBDevice> usb);
+	/* \todo implement remove() */
+
 private:
 	std::vector<std::shared_ptr<MediaDevice>> mediaDevices_;
+	std::vector<std::shared_ptr<USBDevice>> usbDevices_;
 };
 
 } /* namespace libcamera */
diff --git a/include/libcamera/internal/device_enumerator_udev.h b/include/libcamera/internal/device_enumerator_udev.h
index 1b3360df..e67ee31e 100644
--- a/include/libcamera/internal/device_enumerator_udev.h
+++ b/include/libcamera/internal/device_enumerator_udev.h
@@ -59,6 +59,7 @@ private:
 	std::string lookupDeviceNode(dev_t devnum);
 
 	int addV4L2Device(dev_t devnum);
+	int createUSBDevice(struct udev_device *dev);
 	void udevNotify();
 
 	struct udev *udev_;