@@ -249,6 +249,64 @@ int CameraSensor::setFormat(V4L2SubdeviceFormat *format)
return subdev_->setFormat(0, format);
}
+/**
+ * \brief Retrieve the V4L2 control info from the sensor's subdevice
+ * \param id The V4L2 control id
+ *
+ * Retrieve the V4L2ControlInfo from the V4L2 subdevice backing the
+ * camera sensor.
+ *
+ * More complex camera sensors, which expose multiple subdevices should
+ * override this method.
+ *
+ * \sa V4L2Device::getControlInfo()
+ *
+ * \return The V4L2ControlInfo associated to the V4L2 control with \a id or
+ * nullptr if the control is not supported.
+ */
+V4L2ControlInfo *CameraSensor::getControlInfo(unsigned int id)
+{
+ return subdev_->getControlInfo(id);
+}
+
+/**
+ * \brief Read a list of controls from the sensor's subdevice
+ * \param ctrls The list of controls to read
+ *
+ * Read V4L2 controls values on the V4L2 subdevice backing the
+ * camera sensor.
+ *
+ * More complex camera sensors, which expose multiple subdevices should
+ * override this method.
+ *
+ * \sa V4L2Device::getControls()
+ *
+ * \return 0 on success or a negative error code otherwise
+ */
+int CameraSensor::getControls(V4L2Controls *ctrls)
+{
+ return subdev_->getControls(ctrls);
+}
+
+/**
+ * \brief Write a list of controls from the sensor's subdevice
+ * \param ctrls The list of controls to write
+ *
+ * Write V4L2 controls values on the V4L2 subdevice backing the
+ * camera sensor.
+ *
+ * More complex camera sensors, which expose multiple subdevices should
+ * override this method.
+ *
+ * \sa V4L2Device::setControls()
+ *
+ * \return 0 on success or a negative error code otherwise
+ */
+int CameraSensor::setControls(V4L2Controls *ctrls)
+{
+ return subdev_->setControls(ctrls);
+}
+
std::string CameraSensor::logPrefix() const
{
return "'" + subdev_->entity()->name() + "'";
@@ -17,6 +17,8 @@
namespace libcamera {
class MediaEntity;
+class V4L2ControlInfo;
+class V4L2Controls;
class V4L2Subdevice;
struct V4L2SubdeviceFormat;
@@ -41,6 +43,10 @@ public:
const Size &size) const;
int setFormat(V4L2SubdeviceFormat *format);
+ V4L2ControlInfo *getControlInfo(unsigned int id);
+ int getControls(V4L2Controls *ctrls);
+ int setControls(V4L2Controls *ctrls);
+
protected:
std::string logPrefix() const;
Add operations to get and set control and to retrieve the informations on a V4L2 control. For simple camera sensors, the operations are directly called on the underlying V4L2 subdevice. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> --- src/libcamera/camera_sensor.cpp | 58 +++++++++++++++++++++++++++ src/libcamera/include/camera_sensor.h | 6 +++ 2 files changed, 64 insertions(+)